Title: £120 Cheap Flights from Ontario to Chicago (ONT to ORD) - Expedia.co.uk ![City of Chicago. Image of Chicago downtown and Chicago River with bridges at sunny summer day](https://images.trvl-media.com/place/178248/e6aa83ce-7ad8-43a5-9d1d-b055eefa7e78.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/178248/e6aa83ce-7ad8-43a5-9d1d-b055eefa7e78.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # £120 Cheap Flights from Ontario (ONT) to Chicago (ORD) [View £120 flight on Sat, 17 Jan 2026](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:ONT,to:ORD,departure:17/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:119.90&airProductToken=AQpfCi4IwaYBEgM2NTQYrpsBIJIBKInaggMwtNuCAzhYQABYAWoCU1ZyCE9IMllYVUJOCi0IwaYBEgM1MzgYkgEgrhwo7tyCAzDj3oIDOFhAAVgBagJTVnIIT0gyWVhVQk4SCggBEAEYASoCQVMYASIECAEQASgCKAMoBDAB) - [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 Los Angeles - Ontario Intl. Airport (ONT) to Chicago O'Hare International Airport (ORD) - ![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:ont,to:ord,departure:30/10/2025TANYT&leg2=from:ord,to:ont,departure:06/11/2025TANYT&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:ont,to:ord,departure:30/10/2025TANYT&leg2=from:ord,to:ont,departure:06/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F9"}}]) - ![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:ont,to:ord,departure:30/10/2025TANYT&leg2=from:ord,to:ont,departure:06/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) - ![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:ont,to:ord,departure:30/10/2025TANYT&leg2=from:ord,to:ont,departure:06/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![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:ont,to:ord,departure:30/10/2025TANYT&leg2=from:ord,to:ont,departure:06/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}]) - ![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:ont,to:ord,departure:30/10/2025TANYT&leg2=from:ord,to:ont,departure:06/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![JetBlue Airways](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_B6.svg) JetBlue Airways [](https://www.expedia.co.uk/Flights-Search?leg1=from:ont,to:ord,departure:30/10/2025TANYT&leg2=from:ord,to:ont,departure:06/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"B6"}}]) ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 25% on select hotels after you book a flight\* ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.co.uk/login) ## Cheap Flights from Ontario (ONT) to Chicago (ORD) Prices were available within the past 7 days and start at £120 for one-way flights and £239 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) Tue, 13 Jan - Tue, 20 Jan ONT Ontario ORD Chicago £239 Return found 5 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ONT,to:ORD,departure:13/01/2026TANYT&leg2=from:ORD,to:ONT,departure:20/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:238.60&airProductToken=AQpfCi4IwaYBEgM2NTQYrpsBIJIBKImtggMwtK6CAzhYQABYAWoCU1ZyCE9IMllYVUJOCi0IwaYBEgM1MzgYkgEgrhwo7q-CAzDjsYIDOFhAAVgBagJTVnIIT0gyWVhVQk4KXwotCMGmARIDNTg3GK4cIJIBKIj5ggMwpvuCAzhYQABYAWoCU1ZyCE9IMllYVUJOCi4IwaYBEgM2NjQYkgEgrpsBKI_8ggMwrP2CAzhYQAFYAWoCU1ZyCE9IMllYVUJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Thu, 8 Jan - Thu, 15 Jan ONT Ontario ORD Chicago £251 Return found 5 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ONT,to:ORD,departure:08/01/2026TANYT&leg2=from:ORD,to:ONT,departure:15/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:250.70&airProductToken=AQqRAQovCMGmARIDNTQ0GK6bASDvuAEoxPKBAzDd84EDOFhAAFgBagJTVnIIR0gyT0FKQk4KLwjBpgESBDMwNDUY77gBIJIBKJb0gQMw1fSBAzhYQAFYAWoCU1ZyCEdIMk9BSkJOCi0IwaYBEgM1MzgYkgEgrhwozveBAzDD-YEDOFhAAVgBagJTVnIIR0gyT0FWQk4KkQEKLQjBpgESAzU4NxiuHCCSASjowIIDMIbDggM4WEAAWAFqAlNWcghHSDJPQVZCTgovCMGmARIEMTQwOBiSASDvuAEot8OCAzD2w4IDOFhAAVgBagJTVnIIR0gyT0FKQk4KLwjBpgESAzU2NRjvuAEgrpsBKPPEggMwgcaCAzhYQAFYAWoCU1ZyCEdIMk9BSkJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Thu, 8 Jan - Thu, 15 Jan ONT Ontario ORD Chicago £255 Return found 5 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ONT,to:ORD,departure:08/01/2026TANYT&leg2=from:ORD,to:ONT,departure:15/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:254.40&airProductToken=AQpfCi4IwaYBEgM2NTQYrpsBIJIBKOn0gQMwlPaBAzhYQABYAWoCU1ZyCEdIMk9BVkJOCi0IwaYBEgM1MzgYkgEgrhwozveBAzDD-YEDOFhAAVgBagJTVnIIR0gyT0FWQk4KkQEKLQjBpgESAzU4NxiuHCCSASjowIIDMIbDggM4WEAAWAFqAlNWcghHSDJPQVZCTgovCMGmARIEMTQwOBiSASDvuAEot8OCAzD2w4IDOFhAAVgBagJTVnIIR0gyT0FKQk4KLwjBpgESAzU2NRjvuAEgrpsBKPPEggMwgcaCAzhYQAFYAWoCU1ZyCEdIMk9BSkJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Sun, 11 Jan - Sun, 18 Jan ONT Ontario ORD Chicago £259 Return found 5 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ONT,to:ORD,departure:11/01/2026TANYT&leg2=from:ORD,to:ONT,departure:18/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:258.30&airProductToken=AQqRAQovCMGmARIDNTQ0GK6bASDvuAEopJSCAzC9lYIDOFhAAFgBagJTVnIIR0gyT0FKQk4KLwjBpgESBDMwNDUY77gBIJIBKPaVggMwtZaCAzhYQAFYAWoCU1ZyCEdIMk9BSkJOCi0IwaYBEgM1MzgYkgEgrhworpmCAzCjm4IDOFhAAVgBagJTVnIIR0gyT0FWQk4KkQEKLgjBpgESAzMyNRiuHCDvuAEotuWCAzDQ54IDOFhAAFgBagJTVnIIR0gyT0FKQk4KLwjBpgESBDEzMTgY77gBIJIBKP_nggMwxuiCAzhYQAFYAWoCU1ZyCEdIMk9BSkJOCi4IwaYBEgM0ODkYkgEgrpsBKODpggMw_OqCAzhYQAFYAWoCU1ZyCEdIMk9BVkJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Thu, 8 Jan - Thu, 15 Jan ONT Ontario ORD Chicago £262 Return found 5 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ONT,to:ORD,departure:08/01/2026TANYT&leg2=from:ORD,to:ONT,departure:15/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:261.90&airProductToken=AQpfCi4IwaYBEgM2MDcYrpsBIJIBKIjygQMwtvOBAzhYQABYAWoCU1ZyCEdIMk9BVkJOCi0IwaYBEgM0MTAYkgEgrhwotPSBAzCu9oEDOFhAAVgBagJTVnIIT0gyT0FWQk4KkQEKLQjBpgESAzU4NxiuHCCSASjowIIDMIbDggM4WEAAWAFqAlNWcghHSDJPQVZCTgovCMGmARIEMTQwOBiSASDvuAEot8OCAzD2w4IDOFhAAVgBagJTVnIIR0gyT0FKQk4KLwjBpgESAzU2NRjvuAEgrpsBKPPEggMwgcaCAzhYQAFYAWoCU1ZyCEdIMk9BSkJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Mon, 12 Jan - Mon, 19 Jan ONT Ontario ORD Chicago £266 Return found 5 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ONT,to:ORD,departure:12/01/2026TANYT&leg2=from:ORD,to:ONT,departure:19/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:265.80&airProductToken=AQqRAQovCMGmARIDNTQ0GK6bASDvuAEoxJ-CAzDdoIIDOFhAAFgBagJTVnIIR0gyT0FKQk4KLwjBpgESBDMwNDUY77gBIJIBKJahggMw1aGCAzhYQAFYAWoCU1ZyCEdIMk9BSkJOCi0IwaYBEgM1MzgYkgEgrhwozqSCAzDDpoIDOFhAAVgBagJTVnIIR0gyT0FWQk4KkQEKLgjBpgESAzMyNRiuHCDvuAEo1vCCAzDw8oIDOFhAAFgBagJTVnIIR0gyT0FKQk4KLwjBpgESBDEzMTgY77gBIJIBKJ_zggMw5vOCAzhYQAFYAWoCU1ZyCEdIMk9BSkJOCi4IwaYBEgM0ODkYkgEgrpsBKID1ggMwnPaCAzhYQAFYAWoCU1ZyCE9IMk9BVkJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Mon, 12 Jan - Mon, 19 Jan ONT Ontario ORD Chicago £270 Return found 5 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ONT,to:ORD,departure:12/01/2026TANYT&leg2=from:ORD,to:ONT,departure:19/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:269.40&airProductToken=AQpfCi4IwaYBEgM2NTQYrpsBIJIBKOmhggMwlKOCAzhYQABYAWoCU1ZyCEdIMk9BVkJOCi0IwaYBEgM1MzgYkgEgrhwozqSCAzDDpoIDOFhAAVgBagJTVnIIR0gyT0FWQk4KkQEKLgjBpgESAzMyNRiuHCDvuAEo1vCCAzDw8oIDOFhAAFgBagJTVnIIR0gyT0FKQk4KLwjBpgESBDEzMTgY77gBIJIBKJ_zggMw5vOCAzhYQAFYAWoCU1ZyCEdIMk9BSkJOCi4IwaYBEgM0ODkYkgEgrpsBKID1ggMwnPaCAzhYQAFYAWoCU1ZyCE9IMk9BVkJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Tue, 13 Jan - Tue, 20 Jan ONT Ontario ORD Chicago £276 Return found 5 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ONT,to:ORD,departure:13/01/2026TANYT&leg2=from:ORD,to:ONT,departure:20/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:275.20&airProductToken=AQpfCi4IwaYBEgM2NTQYrpsBIJIBKImtggMwtK6CAzhYQABYAWoCU1ZyCE9IMllYVUJOCi0IwaYBEgM1MzgYkgEgrhwo7q-CAzDjsYIDOFhAAVgBagJTVnIIT0gyWVhVQk4KYQouCMGmARIDMzI1GK4cIO-4ASj2-4IDMJD-ggM4WEAAWAFqAlNWcghRSDJPUUpCTgovCMGmARIDMzQwGO-4ASCumwEozv6CAzDf_4IDOFhAAVgBagJTVnIIUUgyT1FKQk4SCggBEAEYASoCQVMYASIECAEQASgCKAMoBDAB) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Fri, 9 Jan - Fri, 16 Jan ONT Ontario ORD Chicago £276 Return found 5 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ONT,to:ORD,departure:09/01/2026TANYT&leg2=from:ORD,to:ONT,departure:16/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:275.90&airProductToken=AQpfCi4IwaYBEgM2NTQYrpsBIJIBKImAggMwtIGCAzhYQABYAWoCU1ZyCEdIMk9BVkJOCi0IwaYBEgM1MzgYkgEgrhwo7oKCAzDjhIIDOFhAAVgBagJTVnIIR0gyT0FWQk4KjwEKLQjBpgESAzU4NxiuHCCSASiIzIIDMKbOggM4WEAAWAFqAlNWcghHSDJPQVZCTgotCMGmARIDMjMzGJIBIMFDKJvPggMw8s-CAzhYQAFYAWoCU1ZyCE9IMllBVUJOCi8IwaYBEgQyMzM5GMFDIK6bASil0YIDMKTSggM4WEABWAFqAlNWcghPSDJZQVVCThIKCAEQARgBKgJBUxgBIgQIARABKAIoAygEMAE) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Thu, 8 Jan - Thu, 15 Jan ONT Ontario ORD Chicago £282 Return found 5 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ONT,to:ORD,departure:08/01/2026TANYT&leg2=from:ORD,to:ONT,departure:15/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:281.20&airProductToken=AQqRAQovCMGmARIDNTQ0GK6bASDvuAEoxPKBAzDd84EDOFhAAFgBagJTVnIIR0gyT0FKQk4KLwjBpgESBDMwNDUY77gBIJIBKJb0gQMw1fSBAzhYQAFYAWoCU1ZyCEdIMk9BSkJOCi0IwaYBEgM1MzgYkgEgrhwozveBAzDD-YEDOFhAAVgBagJTVnIIR0gyT0FWQk4KYQouCMGmARIDMzI1GK4cIO-4ASjWw4IDMPDFggM4WEAAWAFqAlNWcghRSDJPUUpCTgovCMGmARIDMzQwGO-4ASCumwEorsaCAzC_x4IDOFhAAVgBagJTVnIIUUgyT1FKQk4SCggBEAEYASoCQVMYASIECAEQASgCKAMoBDAB) ## Find the cheapest month to fly from Ontario (ONT) to Chicago (ORD) ### October is typically the cheapest month to fly From £88 - £274 per traveller. Flight from Ontario to Chicago route information | Origin airport | Los Angeles - Ontario Intl. | | --- | --- | | Destination airport | O'Hare Intl. | | Return price | £239 | | Distance | 2713 km | | Average flight time | 4 hours 3 mins | ## Compare flights from Ontario to Chicago easily and book with confidence For travelling on business or for pleasure, Expedia makes it easy to book your flights from Ontario to Chicago. Operating between them 1 flights per day, 20 airlines cover the route. And United Airlines fly direct, getting you to O'Hare Intl. in just 8hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Los Angeles - Ontario Intl. to O'Hare 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 Los Angeles - Ontario Intl. (ONT) to O'Hare Intl. (ORD) The easiest way to view the best deals on flights from Ontario to Chicago 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 Los Angeles - Ontario Intl. to O'Hare Intl. start at just £239 and range up to £282.   To find an even better deal, try   - being flexible on your dates – midweek flights can be cheaper - looking for other airports near Ontario and Chicago - booking your flight during January, the cheapest month on this route - varying your flight times – early morning and late at night are sometimes cheaper  Why you should book your Ontario to Chicago flight with Expedia! We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Los Angeles - Ontario Intl. to O'Hare 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 ONT to O'Hare Airport? > If you're planning on travelling from Los Angeles - Ontario Intl. Airport (ONT) to O'Hare Intl. Airport (ORD), round-trip flights start from £239. This price is based on fares available within the last 7 days on Expedia for flights departing within the next year, so don't hang about. Book now 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 Los Angeles - Ontario Intl. Airport (ONT) to O'Hare Airport? > This can differ between air carriers, as each one has its own terms and conditions. Visit the [Customer Service Portal](https://www.expedia.co.uk/service/?langid=1033), where you'll find easy instructions on how to cancel your flight online. ### How do I find cheap flights from ONT to O'Hare 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 ONT to O'Hare Airport flights, you'll see a "no change fees" filter for you to select. ### How far is the flight from Los Angeles - Ontario Intl. Airport (ONT) to O'Hare Intl. Airport (ORD)? > Expect to be cruising at altitude for a while, as the flight distance from Ontario Airport to ORD is 2,700 kilometres. Create a playlist of your favourite songs before you leave home to keep yourself entertained during your trip. ### Which airlines fly direct from Ontario Airport to ORD? > If you want to travel straight from ONT to O'Hare Airport, you'll have to book a flight with one or more stops. Unfortunately, there are no airlines that fly directly between these airports. ### Are ONT to ORD flight tickets cheaper when they're purchased at the last minute? > Late planners can occasionally nab a bargain, with some super cheap fares from Ontario Airport to ORD showing up a few weeks before the date of departure. If you'd rather plan ahead of time, Expedia compares and updates all the best flight deals continuously — as early as a year in advance in some cases. It depends on the carrier though, as not all airlines release prices so far in advance. ## Explore a world of travel with Expedia - Flights ### Flights - [Flights from Lake Of The Ozarks (AIZ) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/aiz/chi/lake-of-the-ozarks-to-chicago) - [Flights from Amsterdam (AMS) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/ams/chi/amsterdam-to-chicago) - [Flights from Atlanta (ATL) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/atl/chi/atlanta-to-chicago) - [Flights from Wilkes-Barre (AVP) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/avp/chi/wilkes-barre-to-chicago) - [Flights from Hartford (BDL) to Chicago (MDW)](https://www.expedia.co.uk/lp/flights/bdl/mdw/hartford-to-chicago) - [Flights from Beirut (BEY) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/bey/chi/beirut-to-chicago) - [Flights from Birmingham (BHX) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/bhx/chi/birmingham-to-chicago) - [Flights from Bitam (BMM) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/bmm/chi/bitam-to-chicago) - [Flights from Bristol (BRS) to Chicago (MDW)](https://www.expedia.co.uk/lp/flights/brs/mdw/bristol-to-chicago) - [Flights from Basel (BSL) to Chicago (PWK)](https://www.expedia.co.uk/lp/flights/bsl/pwk/basel-to-chicago) - [Flights from Burbank (BUR) to Chicago (MDW)](https://www.expedia.co.uk/lp/flights/bur/mdw/burbank-to-chicago) - [Flights from Baltimore (BWI) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/bwi/chi/baltimore-to-chicago) - [Flights from Baltimore (BWI) to Chicago (MDW)](https://www.expedia.co.uk/lp/flights/bwi/mdw/baltimore-to-chicago) - [Flights from Carlisle (CAX) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/cax/chi/carlisle-to-chicago) - [Flights from Cambridge (CBG) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/cbg/chi/cambridge-to-chicago) - [Flights from Chub Cay (CCZ) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/ccz/chi/chub-cay-to-chicago) - [Flights from Craig (CGA) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/cga/chi/craig-to-chicago) - [Flights from Charleston (CHS) to Chicago (MDW)](https://www.expedia.co.uk/lp/flights/chs/mdw/charleston-to-chicago) - [Flights from Champaign (CMI) to Chicago (MDW)](https://www.expedia.co.uk/lp/flights/cmi/mdw/champaign-to-chicago) - [Flights from Washington (DCA) to Waukegan (UGN)](https://www.expedia.co.uk/lp/flights/dca/ugn/washington-to-waukegan) - [Flights from Delhi (DEL) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/del/chi/delhi-to-chicago) - [Flights from Dallas (DFW) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/dfw/chi/dallas-to-chicago) - [Flights from Derby (DRB) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/drb/chi/derby-to-chicago) - [Flights from Dublin (DUB) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/dub/chi/dublin-to-chicago) - [Flights from Wenatchee (EAT) to Chicago (MDW)](https://www.expedia.co.uk/lp/flights/eat/mdw/wenatchee-to-chicago) - [Flights from Edinburgh (EDI) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/edi/chi/edinburgh-to-chicago) - [Flights from Edinburgh (EDI) to Chicago (MDW)](https://www.expedia.co.uk/lp/flights/edi/mdw/edinburgh-to-chicago) - [Flights from Emden (EME) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/eme/chi/emden-to-chicago) - [Flights from Exeter (EXT) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/ext/chi/exeter-to-chicago) - [Flights from Frankfurt (FRA) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/fra/chi/frankfurt-to-chicago) - [Flights from Galesburg (GBG) to Chicago (MDW)](https://www.expedia.co.uk/lp/flights/gbg/mdw/galesburg-to-chicago) - [Flights from Glasgow (GLA) to Chicago (MDW)](https://www.expedia.co.uk/lp/flights/gla/mdw/glasgow-to-chicago) - [Flights from Geneva (GVA) to Chicago (MDW)](https://www.expedia.co.uk/lp/flights/gva/mdw/geneva-to-chicago) - [Flights from Gary (GYY) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/gyy/chi/gary-to-chicago) - [Flights from Hull (HUY) to Chicago (MDW)](https://www.expedia.co.uk/lp/flights/huy/mdw/hull-to-chicago) - [Flights from Washington (IAD) to Chicago (MDW)](https://www.expedia.co.uk/lp/flights/iad/mdw/washington-to-chicago) - [Flights from Indianapolis (IND) to Chicago (MDW)](https://www.expedia.co.uk/lp/flights/ind/mdw/indianapolis-to-chicago) - [Flights from Isle of Man (IOM) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/iom/chi/isle-of-man-to-chicago) - [Flights from Iowa City (IOW) to Chicago (MDW)](https://www.expedia.co.uk/lp/flights/iow/mdw/iowa-city-to-chicago) - [Flights from Istanbul (IST) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/ist/chi/istanbul-to-chicago) - [Flights from Jacksonville (JAX) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/jax/chi/jacksonville-to-chicago) - [Flights from New York (JFK) to Chicago (MDW)](https://www.expedia.co.uk/lp/flights/jfk/mdw/new-york-to-chicago) - [Flights from Kigali (KGL) to Chicago (MDW)](https://www.expedia.co.uk/lp/flights/kgl/mdw/kigali-to-chicago) - [Flights from Karachi (KHI) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/khi/chi/karachi-to-chicago) - [Flights from Kaluga (KLF) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/klf/chi/kaluga-to-chicago) - [Flights from Kitadaito (KTD) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/ktd/chi/kitadaito-to-chicago) - [Flights from Los Angeles (LAX) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/lax/chi/los-angeles-to-chicago) - [Flights from Le Havre (LEH) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/leh/chi/le-havre-to-chicago) - [Flights from London (LGW) to Chicago (MDW)](https://www.expedia.co.uk/lp/flights/lgw/mdw/london-to-chicago) - [Flights from London (LHR) to Chicago (MDW)](https://www.expedia.co.uk/lp/flights/lhr/mdw/london-to-chicago) - [Flights from Milan (LIN) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/lin/chi/milan-to-chicago) - [Flights from Little Rock (LIT) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/lit/chi/little-rock-to-chicago) - [Flights from Klamath Falls (LMT) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/lmt/chi/klamath-falls-to-chicago) - [Flights from London (LON) to Waukegan (UGN)](https://www.expedia.co.uk/lp/flights/lon/ugn/london-to-waukegan) - [Flights from Liverpool (LPL) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/lpl/chi/liverpool-to-chicago) - [Flights from La Rochelle (LRH) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/lrh/chi/la-rochelle-to-chicago) - [Flights from Lawrence (LWC) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/lwc/chi/lawrence-to-chicago) - [Flights from Manchester (MAN) to Chicago (MDW)](https://www.expedia.co.uk/lp/flights/man/mdw/manchester-to-chicago) - [Flights from Kansas City (MCI) to Chicago (MDW)](https://www.expedia.co.uk/lp/flights/mci/mdw/kansas-city-to-chicago) - [Flights from Memphis (MEM) to Waukegan (UGN)](https://www.expedia.co.uk/lp/flights/mem/ugn/memphis-to-waukegan) - [Flights from Mexico City (MEX) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/mex/chi/mexico-city-to-chicago) - [Flights from Miami (MIA) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/mia/chi/miami-to-chicago) - [Flights from Malta (MLK) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/mlk/chi/malta-to-chicago) - [Flights from Durham (MME) to Chicago (MDW)](https://www.expedia.co.uk/lp/flights/mme/mdw/durham-to-chicago) - [Flights from Manila (MNL) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/mnl/chi/manila-to-chicago) - [Flights from Minneapolis (MSP) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/msp/chi/minneapolis-to-chicago) - [Flights from Naples (NAP) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/nap/chi/naples-to-chicago) - [Flights from Nottingham (NQT) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/nqt/chi/nottingham-to-chicago) - [Flights from Newcastle (NTL) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/ntl/chi/newcastle-to-chicago) - [Flights from Norwich (NWI) to Chicago (MDW)](https://www.expedia.co.uk/lp/flights/nwi/mdw/norwich-to-chicago) - [Flights from Obock (OBC) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/obc/chi/obock-to-chicago) - [Flights from Chicago (ORD) to Waukegan (UGN)](https://www.expedia.co.uk/lp/flights/ord/ugn/chicago-to-waukegan) - [Flights from Paris (PAR) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/par/chi/paris-to-chicago) - [Flights from Portland (PDX) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/pdx/chi/portland-to-chicago) - [Flights from Portland (PDX) to Chicago (MDW)](https://www.expedia.co.uk/lp/flights/pdx/mdw/portland-to-chicago) - [Flights from Beijing (PEK) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/pek/chi/beijing-to-chicago) - [Flights from Philadelphia (PHL) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/phl/chi/philadelphia-to-chicago) - [Flights from Philadelphia (PHL) to Chicago (PWK)](https://www.expedia.co.uk/lp/flights/phl/pwk/philadelphia-to-chicago) - [Flights from Phoenix (PHX) to Chicago (MDW)](https://www.expedia.co.uk/lp/flights/phx/mdw/phoenix-to-chicago) - [Flights from Port of Spain (POS) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/pos/chi/port-of-spain-to-chicago) - [Flights from Los Angeles (QLA) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/qla/chi/los-angeles-to-chicago) - [Flights from Yangon (RGN) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/rgn/chi/yangon-to-chicago) - [Flights from Rishiri (RIS) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/ris/chi/rishiri-to-chicago) - [Flights from Rome (ROM) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/rom/chi/rome-to-chicago) - [Flights from Rondon (RON) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/ron/chi/rondon-to-chicago) - [Flights from Ruteng (RTG) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/rtg/chi/ruteng-to-chicago) - [Flights from Louisville (SDF) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/sdf/chi/louisville-to-chicago) - [Flights from Seattle (SEA) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/sea/chi/seattle-to-chicago) - [Flights from Salt Lake City (SLC) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/slc/chi/salt-lake-city-to-chicago) - [Flights from Sacramento (SMF) to Chicago (PWK)](https://www.expedia.co.uk/lp/flights/smf/pwk/sacramento-to-chicago) - [Flights from St. Cloud (STC) to Chicago (MDW)](https://www.expedia.co.uk/lp/flights/stc/mdw/st-cloud-to-chicago) - [Flights from Stockholm (STO) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/sto/chi/stockholm-to-chicago) - [Flights from Swansea (SWS) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/sws/chi/swansea-to-chicago) - [Flights from Sydney (SYD) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/syd/chi/sydney-to-chicago) - [Flights from Topeka (TOP) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/top/chi/topeka-to-chicago) - [Flights from Winchester (WGO) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/wgo/chi/winchester-to-chicago) - [Flights from Winton (WIN) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/win/chi/winton-to-chicago) - [Flights from Tsiroanomandidy (WTS) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/wts/chi/tsiroanomandidy-to-chicago) - [Flights from Windsor (YQG) to Chicago (MDW)](https://www.expedia.co.uk/lp/flights/yqg/mdw/windsor-to-chicago) - [Flights from Toronto (YTO) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/yto/chi/toronto-to-chicago) \*Available to Expedia members.