Title: £91 Cheap Flights from Portland to Ontario (PDX to ONT) - Expedia.co.uk ![Los Angeles which includes a sunset, a city and landscape views](https://images.trvl-media.com/place/178280/a52925ff-8159-46db-8203-2c466dda9df5.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/178280/a52925ff-8159-46db-8203-2c466dda9df5.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # £91 Cheap Flights from Portland (PDX) to Ontario (ONT) [View £91 flight on Sat, 25 Oct 2025](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:PDX,to:ONT,departure:25/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:90.30&airProductToken=AQpqCjMI1YIBEgMzNjEY77gBILJxKI-r-wIw_qv7AjhLQABYAWoHRUNPTk9NWXIIS0FHMkFLRFMKMwjVggESAzQ0OBiycSCumwEojq37AjDgrfsCOEtAAVgBagdFQ09OT01ZcghLQUcyQUtEUxIKCAEQARgBKgJVQRgBIgQIARABKAIoAygEMAE) - [Return](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Portland International Airport (PDX) to Los Angeles - Ontario Intl. Airport (ONT) - ![Alaska Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:pdx,to:ont,departure:29/09/2025TANYT&leg2=from:ont,to:pdx,departure:06/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) - ![Southwest Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WN.svg) Southwest Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:pdx,to:ont,departure:29/09/2025TANYT&leg2=from:ont,to:pdx,departure:06/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}]) - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.co.uk/Flights-Search?leg1=from:pdx,to:ont,departure:29/09/2025TANYT&leg2=from:ont,to:pdx,departure:06/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![Delta](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.co.uk/Flights-Search?leg1=from:pdx,to:ont,departure:29/09/2025TANYT&leg2=from:ont,to:pdx,departure:06/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:pdx,to:ont,departure:29/09/2025TANYT&leg2=from:ont,to:pdx,departure:06/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![Frontier Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_F9.svg) Frontier Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:pdx,to:ont,departure:29/09/2025TANYT&leg2=from:ont,to:pdx,departure:06/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F9"}}]) - ![Hawaiian Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_HA.svg) Hawaiian Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:pdx,to:ont,departure:29/09/2025TANYT&leg2=from:ont,to:pdx,departure:06/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"HA"}}]) - ## Plan, book, fly with confidence - ### Be in the know Get alerts if flight prices drop or rise\* - ### Book smarter Save up to 25% on select hotels after you book a flight\* - ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.co.uk/login) ## Cheap Flights from Portland (PDX) to Ontario (ONT) Prices were available within the past 7 days and start at £91 for one-way flights and £145 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Return ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Fri, 31 Oct - Sun, 2 Nov PDX Portland ONT Ontario £145 Return found 3 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:PDX,to:ONT,departure:31/10/2025TANYT&leg2=from:ONT,to:PDX,departure:02/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:145.00&airProductToken=AQowCi4IwaYBEgI3NxjvuAEgrpsBKLTt-wIww-77AjhYQABYAWoCU1ZyCE9IMkVBVUJOCjEKLwjBpgESAzU0NBiumwEg77gBKPiA_AIwjoL8AjhYQABYAWoCU1ZyCE9IMkVBVUJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Fri, 31 Oct - Sun, 2 Nov PDX Portland ONT Ontario £153 Return found 3 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:PDX,to:ONT,departure:31/10/2025TANYT&leg2=from:ONT,to:PDX,departure:02/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:152.50&airProductToken=AQowCi4IwaYBEgI3NxjvuAEgrpsBKLTt-wIww-77AjhYQABYAWoCU1ZyCE9IMkVBVUJOCjIKMAjBpgESBDE0MzgYrpsBIO-4ASj7hfwCMI2H_AI4WEAAWAFqAlNWcghRSDJFQVVCThIKCAEQARgBKgJBUxgBIgQIARABKAIoAygEMAE) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Sun, 26 Oct - Fri, 31 Oct PDX Portland ONT Ontario £175 Return found 4 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:PDX,to:ONT,departure:26/10/2025TANYT&leg2=from:ONT,to:PDX,departure:31/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:174.60&airProductToken=AQphCi4IwaYBEgM0OTkY77gBIJIBKIyx-wIwz7H7AjhYQABYAWoCU1ZyCE9IMllBVUJOCi8IwaYBEgQxMzY0GJIBIK6bASiasvsCML2z-wI4WEABWAFqAlNWcghPSDJZQVVCTgoxCi8IwaYBEgM1NDQYrpsBIO-4ASj86fsCMJLr-wI4WEAAWAFqAlNWcghPSDJPQVVCThIKCAEQARgBKgJBUxgBIgQIARABKAIoAygEMAE) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Fri, 31 Oct - Sun, 2 Nov PDX Portland ONT Ontario £182 Return found 3 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:PDX,to:ONT,departure:31/10/2025TANYT&leg2=from:ONT,to:PDX,departure:02/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:181.50&airProductToken=AQoyCjAIwaYBEgQyMTM0GO-4ASCumwEojer7AjCa6_sCOFhAAFgBagJTVnIITkgyRUFWQk4KMgowCMGmARIEMTQzOBiumwEg77gBKPuF_AIwjYf8AjhYQABYAWoCU1ZyCFFIMkVBVUJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Sun, 26 Oct - Fri, 31 Oct PDX Portland ONT Ontario £183 Return found 4 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:PDX,to:ONT,departure:26/10/2025TANYT&leg2=from:ONT,to:PDX,departure:31/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:182.60&airProductToken=AQowCi4IwaYBEgI5NxjvuAEgrpsBKLC4-wIwwLn7AjhYQABYAWoCU1ZyCFFIMk9BVUJOCjEKLwjBpgESAzU0NBiumwEg77gBKPzp-wIwkuv7AjhYQABYAWoCU1ZyCE9IMk9BVUJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Fri, 19 Sept - Mon, 22 Sept PDX Portland ONT Ontario £205 Return found 3 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:PDX,to:ONT,departure:19/09/2025TANYT&leg2=from:ONT,to:PDX,departure:22/09/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:204.10&airProductToken=AQoyCjAIwaYBEgQxMDY2GO-4ASCumwEojpj4AjCemfgCOFhAAFgBagJTVnIIUUg3RUFVQk4KMgowCMGmARIEMTA1OBiumwEg77gBKJKz-AIwnbT4AjhYQABYAWoCU1ZyCFFIN0VBVUJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Sun, 26 Oct - Fri, 31 Oct PDX Portland ONT Ontario £212 Return found 4 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:PDX,to:ONT,departure:26/10/2025TANYT&leg2=from:ONT,to:PDX,departure:31/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:211.20&airProductToken=AQoyCjAIwaYBEgQyMTM0GO-4ASCumwEo7bH7AjD6svsCOFhAAFgBagJTVnIIT0gyT0FVQk4KYAouCMGmARIDNjY1GK6bASCSASiP7vsCMLfv-wI4WEAAWAFqAlNWcghRSDJPQUpCTgouCMGmARIDMzgwGJIBIO-4ASjg7_sCMJnw-wI4WEABWAFqAlNWcghRSDJPQUpCThIKCAEQARgBKgJBUxgBIgQIARABKAIoAygEMAE) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Sun, 26 Oct - Fri, 31 Oct PDX Portland ONT Ontario £212 Return found 4 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:PDX,to:ONT,departure:26/10/2025TANYT&leg2=from:ONT,to:PDX,departure:31/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:211.80&airProductToken=AQphCi4IwaYBEgM0OTkY77gBIJIBKIyx-wIwz7H7AjhYQABYAWoCU1ZyCE9IMllBVUJOCi8IwaYBEgQxMzY0GJIBIK6bASiasvsCML2z-wI4WEABWAFqAlNWcghPSDJZQVVCTgpgCi4IwaYBEgM2NjUYrpsBIJIBKI_u-wIwt-_7AjhYQABYAWoCU1ZyCFFIMk9BSkJOCi4IwaYBEgMzODAYkgEg77gBKODv-wIwmfD7AjhYQAFYAWoCU1ZyCFFIMk9BSkJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Sun, 26 Oct - Fri, 31 Oct PDX Portland ONT Ontario £219 Return found 4 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:PDX,to:ONT,departure:26/10/2025TANYT&leg2=from:ONT,to:PDX,departure:31/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:218.70&airProductToken=AQowCi4IwaYBEgI5NxjvuAEgrpsBKLC4-wIwwLn7AjhYQABYAWoCU1ZyCFFIMk9BVUJOCmAKLgjBpgESAzY2NRiumwEgkgEoj-77AjC37_sCOFhAAFgBagJTVnIIUUgyT0FKQk4KLgjBpgESAzM4MBiSASDvuAEo4O_7AjCZ8PsCOFhAAVgBagJTVnIIUUgyT0FKQk4SCggBEAEYASoCQVMYASIECAEQASgCKAMoBDAB) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Sun, 26 Oct - Fri, 31 Oct PDX Portland ONT Ontario £227 Return found 4 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:PDX,to:ONT,departure:26/10/2025TANYT&leg2=from:ONT,to:PDX,departure:31/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:226.20&airProductToken=AQphCi4IwaYBEgM0OTkY77gBIJIBKIyx-wIwz7H7AjhPQABYAWoCTUFyCE9IMllBVU1OCi8IwaYBEgQxMzY0GJIBIK6bASiasvsCML2z-wI4T0ABWAFqAk1BcghPSDJZQVVNTgoxCi8IwaYBEgM1NDQYrpsBIO-4ASj86fsCMJLr-wI4T0AAWAFqAk1BcghPSDJPQVVNThIKCAEQARgBKgJBUxgBIgQIARABKAIoAygEMAE) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Fri, 31 Oct - Sun, 2 Nov PDX Portland ONT Ontario £227 Return found 3 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:PDX,to:ONT,departure:31/10/2025TANYT&leg2=from:ONT,to:PDX,departure:02/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:226.70&airProductToken=AQowCi4IwaYBEgI3NxjvuAEgrpsBKLTt-wIww-77AjhYQABYAWoCU1ZyCE9IMkVBVUJOCjIKMAjBpgESBDI0NTYYrpsBIO-4ASjTgvwCMOWD_AI4WEAAWAFqAlNWcghWSDdFQVZCThIKCAEQARgBKgJBUxgBIgQIARABKAIoAygEMAE) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Sun, 26 Oct - Fri, 31 Oct PDX Portland ONT Ontario £230 Return found 4 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:PDX,to:ONT,departure:26/10/2025TANYT&leg2=from:ONT,to:PDX,departure:31/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:229.50&airProductToken=AQphCi4IwaYBEgM0OTkY77gBIJIBKIyx-wIwz7H7AjhYQABYAWoCU1ZyCE9IMllBVUJOCi8IwaYBEgQxMzY0GJIBIK6bASiasvsCML2z-wI4WEABWAFqAlNWcghPSDJZQVVCTgoyCjAIwaYBEgQyNDU2GK6bASDvuAEo1-v7AjDp7PsCOFhAAFgBagJTVnIIU0gyT0FWQk4SCggBEAEYASoCQVMYASIECAEQASgCKAMoBDAB) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Sun, 26 Oct - Fri, 31 Oct PDX Portland ONT Ontario £234 Return found 4 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:PDX,to:ONT,departure:26/10/2025TANYT&leg2=from:ONT,to:PDX,departure:31/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:233.80&airProductToken=AQphCi8IwaYBEgQxNDA3GO-4ASCSASjTtPsCMJe1-wI4WEAAWAFqAlNWcghOSDJPQUpCTgouCMGmARIDNTkyGJIBIK6bASjrtvsCMIm4-wI4WEABWAFqAlNWcghOSDJPQUpCTgoxCi8IwaYBEgM1NDQYrpsBIO-4ASj86fsCMJLr-wI4WEAAWAFqAlNWcghPSDJPQVVCThIKCAEQARgBKgJBUxgBIgQIARABKAIoAygEMAE) ## Find the cheapest month to fly from Portland (PDX) to Ontario (ONT) ### December is typically the cheapest month to fly From £54 - £203 per traveller. Flight from Portland to Ontario route information | Origin airport | Portland Intl. | | --- | --- | | Destination airport | Los Angeles - Ontario Intl. | | Airlines serving | Alaska Airlines | | Return price | £145 | | Distance | 1342 km | | Average flight time | 2 hours 23 mins | ## Compare flights from Portland to Ontario easily and book with confidence For travelling on business or for pleasure, Expedia makes it easy to book your flights from Portland to Ontario. Operating between them 8 flights per day, 20 airlines cover the route. And Alaska Airlines, Frontier Airlines, Hawaiian Airlines, British Airways fly direct, getting you to Los Angeles - Ontario Intl. in just 2hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Portland Intl. to Los Angeles - Ontario Intl..   To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights.  Grab a great deal on your flight from Portland Intl. (PDX) to Los Angeles - Ontario Intl. (ONT) The easiest way to view the best deals on flights from Portland to Ontario today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Portland Intl. to Los Angeles - Ontario Intl. start at just £145 and range up to £234.   To find an even better deal, try   - being flexible on your dates – midweek flights can be cheaper - looking for other airports near Portland and Ontario - booking your flight during October, the cheapest month on this route - varying your flight times – early morning and late at night are sometimes cheaper  Why you should book your Portland to Ontario flight with Expedia! We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Portland Intl. to Los Angeles - Ontario Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.   Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.   ## Frequently asked questions ### How much is a flight from Portland Airport to ONT? > If you're planning on travelling from Portland Airport to Ontario Airport, round-trip journeys start from £145. This figure is based on airfares listed within the last 7 days on Expedia for flights departing within the next year, so don't let a good deal slip through your fingers. Book today and save yourself both money and time. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from Portland Airport to Ontario Airport? > Most flights can be cancelled online, but every air carrier has its own terms and conditions. If you do decide to cancel your flight, visit our [Customer Service Portal](https://www.expedia.co.uk/service/?langid=1033) and follow the instructions. ### How do I find cheap flights from Portland Intl. Airport (PDX) to Ontario Airport that have flexible change policies? > Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Portland Intl. Airport (PDX) to ONT flights, you'll see a "no change fees" filter for you to select. ### How far is the flight from PDX to ONT? > It's only 1,350 kilometres between Portland and Ontario. It's quite possible that you'll spend more time travelling to and from the airport than actually flying! ### Which airlines fly direct from Portland Airport to Ontario Airport? > Offering 26 flights monthly, Alaska Airlines (AS) is a great choice when flying directly from PDX Airport to Los Angeles - Ontario Intl. Airport (ONT). ### Are Portland Intl. Airport (PDX) to Ontario Airport flight tickets cheaper when they're purchased at the last minute? > Flight prices are constantly going up and down, so it's no sure thing. While last-minute deals between Portland Intl. Airport (PDX) and Los Angeles - Ontario Intl. Airport (ONT) are of course possible, it also makes sense to keep a close eye on prices well before you fly. In fact, some air carriers publish their prices up to a year before the departure date. Expedia is constantly updating the biggest airfare bargains around, so check back often and be ready to lock in your seat when the fares dip. ## Explore a world of travel with Expedia - Trending Routes - Trending Flights - Top Flights Destinations - Related Airlines - Nearby Airports - Cheap Flights from Other Airports - Expedia's Latest Trends ### Top Routes from Portland - [Portland to Chicago (PDX - ORD)](https://expedia.co.uk/lp/flights/pdx/ord/portland-to-chicago) - [Portland to Newark Liberty Intl. Airport (PDX - EWR)](https://expedia.co.uk/lp/flights/pdx/ewr/portland-to-newark-liberty-intl-airport) - [Portland to Paris (PDX - CDG)](https://expedia.co.uk/lp/flights/pdx/cdg/portland-to-paris) - [Portland to Boston (PDX - BOS)](https://expedia.co.uk/lp/flights/pdx/bos/portland-to-boston) - [Portland to Amsterdam (PDX - AMS)](https://expedia.co.uk/lp/flights/pdx/ams/portland-to-amsterdam) - [Portland to Denver (PDX - DEN)](https://expedia.co.uk/lp/flights/pdx/den/portland-to-denver) - [Portland to New York (PDX - JFK)](https://expedia.co.uk/lp/flights/pdx/jfk/portland-to-new-york) - [Portland to Seville (PDX - SVQ)](https://expedia.co.uk/lp/flights/pdx/svq/portland-to-seville) - [Portland to Tokyo (PDX - NRT)](https://expedia.co.uk/lp/flights/pdx/nrt/portland-to-tokyo) - [Portland to London (PDX - LHR)](https://expedia.co.uk/lp/flights/pdx/lhr/portland-to-london) - [Portland to Lisbon (PDX - LIS)](https://expedia.co.uk/lp/flights/pdx/lis/portland-to-lisbon) - [Portland to Atlanta (PDX - ATL)](https://expedia.co.uk/lp/flights/pdx/atl/portland-to-atlanta) ### Top Routes to Ontario - [Norwich to Ontario (NWI - ONT)](https://expedia.co.uk/lp/flights/nwi/ont/norwich-to-ontario) - [Bristol to Ontario (BRS - ONT)](https://expedia.co.uk/lp/flights/brs/ont/bristol-to-ontario) - [Leeds to Ontario (LBA - ONT)](https://expedia.co.uk/lp/flights/lba/ont/leeds-to-ontario) - [Edinburgh to Ontario (EDI - ONT)](https://expedia.co.uk/lp/flights/edi/ont/edinburgh-to-ontario) - [Hull to Ontario (HUY - ONT)](https://expedia.co.uk/lp/flights/huy/ont/hull-to-ontario) - [Birmingham to Ontario (BHX - ONT)](https://expedia.co.uk/lp/flights/bhx/ont/birmingham-to-ontario) - [Newcastle to Ontario (NCL - ONT)](https://expedia.co.uk/lp/flights/ncl/ont/newcastle-to-ontario) - [London to Ontario (LHR - ONT)](https://expedia.co.uk/lp/flights/lhr/ont/london-to-ontario) - [Cardiff to Ontario (CWL - ONT)](https://expedia.co.uk/lp/flights/cwl/ont/cardiff-to-ontario) - [Aberdeen to Ontario (ABZ - ONT)](https://expedia.co.uk/lp/flights/abz/ont/aberdeen-to-ontario) - [Manchester to Ontario (MAN - ONT)](https://expedia.co.uk/lp/flights/man/ont/manchester-to-ontario) ### Top Routes from Portland - [British Airways Portland to London](https://expedia.co.uk/lp/flight-routes/british-airways-from-portland-intl-to-heathrow/ba/pdx/lhr) ### Top Routes to Ontario - [British Airways London to Ontario](https://expedia.co.uk/lp/flight-routes/british-airways-from-heathrow-to-los-angeles-ontario-intl/ba/lhr/ont) ### Top Flight Destinations - [Flights to Las Vegas](https://expedia.co.uk/Cheap-Flights-To-Las-Vegas.d178276.Travel-Guide-Flights) - [Flights to New York](https://expedia.co.uk/Cheap-Flights-To-New-York.d178293.Travel-Guide-Flights) - [Flights to Orlando](https://expedia.co.uk/Cheap-Flights-To-Orlando.d178294.Travel-Guide-Flights) - [Flights to Chicago](https://expedia.co.uk/Cheap-Flights-To-Chicago.d178248.Travel-Guide-Flights) - [Flights to San Diego](https://expedia.co.uk/Cheap-Flights-To-San-Diego.d3073.Travel-Guide-Flights) - [Flights to San Francisco](https://expedia.co.uk/Cheap-Flights-To-San-Francisco.d178305.Travel-Guide-Flights) - [Flights to Los Angeles](https://expedia.co.uk/Cheap-Flights-To-Los-Angeles.d178280.Travel-Guide-Flights) - [Flights to Boston](https://expedia.co.uk/Cheap-Flights-To-Boston.d178239.Travel-Guide-Flights) - [Flights to Miami](https://expedia.co.uk/Cheap-Flights-To-Miami.d178286.Travel-Guide-Flights) - [Flights to Houston](https://expedia.co.uk/Cheap-Flights-To-Houston.d178265.Travel-Guide-Flights) - [Flights to Pigeon Forge](https://expedia.co.uk/Cheap-Flights-To-Pigeon-Forge.d8264.Travel-Guide-Flights) - [Flights to Nashville](https://expedia.co.uk/Cheap-Flights-To-Nashville.d178291.Travel-Guide-Flights) - [Flights to Myrtle Beach](https://expedia.co.uk/Cheap-Flights-To-Myrtle-Beach.d601685.Travel-Guide-Flights) - [Flights to Atlanta](https://expedia.co.uk/Cheap-Flights-To-Atlanta.d178232.Travel-Guide-Flights) - [Flights to San Antonio](https://expedia.co.uk/Cheap-Flights-To-San-Antonio.d178303.Travel-Guide-Flights) - [Flights to Denver](https://expedia.co.uk/Cheap-Flights-To-Denver.d178254.Travel-Guide-Flights) - [Flights to Honolulu](https://expedia.co.uk/Cheap-Flights-To-Honolulu.d1488.Travel-Guide-Flights) - [Flights to Gatlinburg](https://expedia.co.uk/Cheap-Flights-To-Gatlinburg.d7474.Travel-Guide-Flights) - [Flights to Panama City Beach](https://expedia.co.uk/Cheap-Flights-To-Panama-City-Beach.d8021.Travel-Guide-Flights) - [Flights to Atlantic City](https://expedia.co.uk/Cheap-Flights-To-Atlantic-City.d602179.Travel-Guide-Flights) ### Related Airlines - [KLM](https://expedia.co.uk/KLM-Flights.cKL.Travel-Guide-Airlines) - [British Airways](https://expedia.co.uk/British-Airways-Flights.cBA.Travel-Guide-Airlines) - [Air France](https://expedia.co.uk/Air-France-Flights.cAF.Travel-Guide-Airlines) - [Iberia](https://expedia.co.uk/Iberia-Flights.cIB.Travel-Guide-Airlines) - [Virgin Atlantic](https://expedia.co.uk/Virgin-Atlantic-Flights.cVS.Travel-Guide-Airlines) - [Air Canada](https://expedia.co.uk/Air-Canada-Flights.cAC.Travel-Guide-Airlines) - [Icelandair](https://expedia.co.uk/Icelandair-Flights.cFI.Travel-Guide-Airlines) - [Finnair](https://expedia.co.uk/Finnair-Flights.cAY.Travel-Guide-Airlines) - [Lufthansa](https://expedia.co.uk/Lufthansa-Flights.cLH.Travel-Guide-Airlines) - [Brussels Airlines](https://expedia.co.uk/Brussels-Airlines-Flights.cSN.Travel-Guide-Airlines) - [Alaska Airlines](https://expedia.co.uk/Alaska-Airlines-Flights.cAS.Travel-Guide-Airlines) - [Aer Lingus](https://expedia.co.uk/Aer-Lingus-Flights.cEI.Travel-Guide-Airlines) - [Delta](https://expedia.co.uk/Delta-Flights.cDL.Travel-Guide-Airlines) - [United](https://expedia.co.uk/United-Flights.cUA.Travel-Guide-Airlines) - [American Airlines](https://expedia.co.uk/American-Airlines-Flights.cAA.Travel-Guide-Airlines) - [SAS](https://expedia.co.uk/Scandinavian-Airlines-Flights.cSK.Travel-Guide-Airlines) Ontario Airports #### Burbank [Portland to Hollywood Burbank](https://expedia.co.uk/lp/flights/pdx/bur/portland-to-burbank) £114.90 #### Los Angeles [Portland to Los Angeles Intl.](https://expedia.co.uk/lp/flights/pdx/lax/portland-to-los-angeles) £129.90 #### Orange County [Portland to John Wayne](https://expedia.co.uk/lp/flights/pdx/sna/portland-to-orange-county) £220.90 ### Nearby Airports - [Astoria Regional Airport (AST)](https://expedia.co.uk/lp/airports/ast/flights-from-astoria-regional-airport) - [Corvallis Municipal Airport (CVO)](https://expedia.co.uk/lp/airports/cvo/flights-from-corvallis-municipal-airport) - [Bowerman Airport (HQM)](https://expedia.co.uk/lp/airports/hqm/flights-from-bowerman-airport) - [Robert's Field Airport (RDM)](https://expedia.co.uk/lp/airports/rdm/flights-from-roberts-field-airport) - [Yakima Air Terminal - McAllister Field Airport (YKM)](https://expedia.co.uk/lp/airports/ykm/flights-from-yakima-air-terminal-mcallister-field-airport) - [Seattle - Tacoma Intl. Airport (SEA)](https://expedia.co.uk/lp/airports/sea/flights-from-seattle-tacoma-intl-airport) - [Boeing Field Airport (BFI)](https://expedia.co.uk/lp/airports/bfi/flights-from-boeing-field-airport) - [Seattle Paine Field Intl. Airport Airport (PAE)](https://expedia.co.uk/lp/airports/pae/flights-from-seattle-paine-field-intl-airport-airport) - [Richland Airport (RLD)](https://expedia.co.uk/lp/airports/rld/flights-from-richland-airport) - [Pangborn Memorial Airport (EAT)](https://expedia.co.uk/lp/airports/eat/flights-from-pangborn-memorial-airport) ### Expedia's Latest Trends Flights - [Flights from Glasgow to Los Angeles](https://expedia.co.uk/lp/flights/gla/lax/glasgow-to-los-angeles) - [Flights from London to Los Angeles](https://expedia.co.uk/lp/flights/lgw/lax/london-to-los-angeles) - [Flights from Los Angeles to New York](https://expedia.co.uk/lp/flights/lax/nyc/los-angeles-to-new-york) - [Flights from London to Los Angeles](https://expedia.co.uk/lp/flights/lhr/lax/london-to-los-angeles) - [Flights from San Francisco to Santa Barbara](https://expedia.co.uk/lp/flights/sfo/sba/san-francisco-to-santa-barbara) - [Flights from Las Vegas to Los Angeles](https://expedia.co.uk/lp/flights/las/lax/las-vegas-to-los-angeles) - [Virgin Atlantic London (LHR) to Los Angeles (LAX) flights](https://expedia.co.uk/lp/flight-routes/virgin-atlantic-from-heathrow-to-los-angeles-intl/vs/lhr/lax) - [Flights from Manchester to San Diego](https://expedia.co.uk/lp/flights/man/san/manchester-to-san-diego) - [Flights from Edinburgh to Los Angeles](https://expedia.co.uk/lp/flights/edi/lax/edinburgh-to-los-angeles) - [Flights from New York to Los Angeles](https://expedia.co.uk/lp/flights/nyc/lax/new-york-to-los-angeles) - [Flights from Manchester to Los Angeles](https://expedia.co.uk/lp/flights/man/lax/manchester-to-los-angeles) - [Flights from Las Vegas to San Francisco](https://expedia.co.uk/lp/flights/las/sfo/las-vegas-to-san-francisco) - [Flights from London to San Jose](https://expedia.co.uk/lp/flights/lhr/sjc/london-to-san-jose) - [Flights from Los Angeles to London](https://expedia.co.uk/lp/flights/lax/lhr/los-angeles-to-london) - [Flights from Los Angeles to San Francisco](https://expedia.co.uk/lp/flights/lax/sfo/los-angeles-to-san-francisco) - [Flights from Los Angeles to Manchester](https://expedia.co.uk/lp/flights/lax/man/los-angeles-to-manchester) - [Flights from San Francisco to London](https://expedia.co.uk/lp/flights/sfo/lhr/san-francisco-to-london) - [Flights from London to San Francisco](https://expedia.co.uk/lp/flights/lhr/sfo/london-to-san-francisco) - [Flights from New York to San Francisco](https://expedia.co.uk/lp/flights/jfk/sfo/new-york-to-san-francisco) - [Flights from Los Angeles to Las Vegas](https://expedia.co.uk/lp/flights/lax/las/los-angeles-to-las-vegas) - [Flights from Manchester to San Francisco](https://expedia.co.uk/lp/flights/man/sfo/manchester-to-san-francisco) - [Flights from San Francisco to Los Angeles](https://expedia.co.uk/lp/flights/sfo/lax/san-francisco-to-los-angeles) - [Flights from London to Sacramento](https://expedia.co.uk/lp/flights/lhr/smf/london-to-sacramento) - [Flights from San Francisco to Las Vegas](https://expedia.co.uk/lp/flights/sfo/las/san-francisco-to-las-vegas) - [British Airways London (LHR) to Los Angeles (LAX) flights](https://expedia.co.uk/lp/flight-routes/british-airways-from-heathrow-to-los-angeles-intl/ba/lhr/lax) - [Flights from London to San Diego](https://expedia.co.uk/lp/flights/lhr/san/london-to-san-diego) - [Flights from Miami to Los Angeles](https://expedia.co.uk/lp/flights/mia/lax/miami-to-los-angeles) - [Flights from Birmingham to Los Angeles](https://expedia.co.uk/lp/flights/bhx/lax/birmingham-to-los-angeles) - [Flights from San Francisco to Honolulu](https://expedia.co.uk/lp/flights/sfo/hnl/san-francisco-to-honolulu) - [Flights from Los Angeles to Honolulu](https://expedia.co.uk/lp/flights/lax/hnl/los-angeles-to-honolulu) \*Available to Expedia members. ![](https://a.travel-assets.com/mad-service/footer/bnaBanners/BEX_Footer.jpg) ## Go further with the Expedia app Save on select hotels when you book in the app. Our app deals help you to save on trips so you can travel more and manage it all on the go. Scan the QR code with your device camera and download our app ![QR code to download the app](data:image/png;base64,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)