Title: Cheap Flights from Los Angeles - Ontario Intl. Airport (ONT) - Expedia.co.uk ![](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Los Angeles - Ontario Intl. Airport (ONT) [View £53 flight on Mon, 16 Mar 2026](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:ONT,to:SEA,departure:16/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:52.40&airProductToken=AQojCiEIxJgBEgQ0MDQyGK6bASCSASis44cDMNvkhwM4RUAAWAESCggBEAEYASoCREwYASIECAEQASgEMAE) - [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 [Los Angeles Travel Guide](https://expedia.co.uk/Los-Angeles.dx178280)[Hotels in Los Angeles](https://expedia.co.uk/Los-Angeles-Hotels.d178280.Travel-Guide-Hotels)[Things to do in Los Angeles](https://expedia.co.uk/Things-To-Do-In-Los-Angeles.d178280.Travel-Guide-Activities)[Los Angeles Car Hire](https://expedia.co.uk/Compare-Cheap-Car-Hire-In-Los-Angeles.d178280.Car-Hire-Guide)[Los Angeles Holidays](https://expedia.co.uk/Los-Angeles.d178280.Holidays-City-Breaks) ## Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United - ![Delta](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta - ![Southwest Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WN.svg) Southwest Airlines - ![Alaska Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines - ![Frontier Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_F9.svg) Frontier Airlines - ![Volaris](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_Y4.svg) Volaris - ![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) ## Flights from Los Angeles - Ontario Intl. Airport Prices were available within the past 7 days and start at £53 for one-way flights and £74 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, 23 Jan - Sun, 25 Jan ONT Ontario SEA Seattle £74 Return found 18 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ONT,to:SEA,departure:23/01/2026TANYT&leg2=from:SEA,to:ONT,departure:25/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:73.50&airProductToken=AQowCi4IwaYBEgM2NjUYrpsBIJIBKMOfgwMw7qCDAzhYQABYAWoCU1ZyCEdIMkVBVkJOCjEKLwjBpgESBDEzNjQYkgEgrpsBKK-ygwMw07ODAzhYQABYAWoCU1ZyCEdIMkVBVkJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Fri, 30 Jan - Sun, 1 Feb ONT Ontario SEA Seattle £97 Return found 17 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ONT,to:SEA,departure:30/01/2026TANYT&leg2=from:SEA,to:ONT,departure:01/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:96.10&airProductToken=AQowCi4IwaYBEgM2NTQYrpsBIJIBKKnsgwMw1O2DAzhYQABYAWoCU1ZyCEdIMkVBVkJOCjEKLwjBpgESBDEzNjQYkgEgrpsBKI-BhAMws4KEAzhYQABYAWoCU1ZyCE9IMkVBVkJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Thu, 22 Jan - Sun, 25 Jan ONT Ontario PDX Portland £133 Return found 5 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ONT,to:PDX,departure:22/01/2026TANYT&leg2=from:PDX,to:ONT,departure:25/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:132.70&airProductToken=AQoxCi8IwaYBEgM1NDQYrpsBIO-4ASiEkIMDMJ2RgwM4WEAAWAFqAlNWcghPSDJFQVVCTgoxCi8IwaYBEgMzNDAY77gBIK6bASjutoMDMPq3gwM4WEAAWAFqAlNWcghPSDJFQVVCThIKCAEQARgBKgJBUxgBIgQIARABKAIoAygEMAE) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Thu, 22 Jan - Tue, 27 Jan ONT Ontario DEN Denver £146 Return found 4 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ONT,to:DEN,departure:22/01/2026TANYT&leg2=from:DEN,to:ONT,departure:27/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:145.10&airProductToken=AQpfCi4IwaYBEgM2NjUYrpsBIJIBKKOUgwMwzpWDAzhYQABYAWoCU1ZyCEdIMk9aSkJOCi0IwaYBEgM2MDIYkgEgg2koipaDAzCrl4MDOFhAAVgBagJTVnIIR0gyT1pKQk4KXwotCMGmARIDNjQzGINpIJIBKOjHgwMwp8mDAzhYQABYAWoCU1ZyCEdIMk9ESkJOCi4IwaYBEgM2NjQYkgEgrpsBKO_KgwMwjMyDAzhYQAFYAWoCU1ZyCEdIMk9ESkJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Thu, 22 Jan - Mon, 9 Feb ONT Ontario DEN Denver £158 Return found 7 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ONT,to:DEN,departure:22/01/2026TANYT&leg2=from:DEN,to:ONT,departure:09/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:158.00&airProductToken=AQpFCiEIxJgBEgQxMjI0GK6bASDyEijmlIMDMNSVgwM4RUAAWAEKIAjEmAESBDE2NjcY8hIgg2kok5aDAzDwloMDOEVAAVgBCkUKIAjEmAESBDE1NTMYg2kg8hIo4tyEAzDI3YQDOEVAAFgBCiEIxJgBEgQxMjI0GPISIK6bASiB3oQDMO_ehAM4RUABWAESCggBEAEYASoCREwYASIECAEQASgEMAE) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Sun, 18 Jan - Sat, 31 Jan ONT Ontario DFW Dallas £193 Return found 14 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ONT,to:DFW,departure:18/01/2026TANYT&leg2=from:DFW,to:ONT,departure:31/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:192.90&airProductToken=AQokCiIIwYIBEgQzMjkxGK6bASCjsQEo_-qCAzCp7IIDOE9AAFgBCiMKIQjBggESAzg1MBijsQEgrpsBKJ_5gwMw5fqDAzhPQABYARIKCAEQARgBKgJBQRgBIgQIARABKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Tue, 3 Feb - Thu, 5 Feb ONT Ontario SFO San Francisco £197 Return found 14 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ONT,to:SFO,departure:03/02/2026TANYT&leg2=from:SFO,to:ONT,departure:05/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:196.70&airProductToken=AQpgCi4IwaYBEgM2NTQYrpsBIJIBKKmZhAMw1JqEAzhYQABYAWoCU1ZyCEdIMk9BVkJOCi4IwaYBEgQxMzg1GJIBILJxKJGbhAMwl5yEAzhYQAFYAWoCU1ZyCEdIMk9BVkJOCl8KLQjBpgESAzU5MRiycSCSASiOsoQDMJmzhAM4WEAAWAFqAlNWcghHSDJPQVZCTgouCMGmARIDNDg5GJIBIK6bASigtIQDMLy1hAM4WEABWAFqAlNWcghHSDJPQVZCThIKCAEQARgBKgJBUxgBIgQIARABKAIoAygEMAE) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Thu, 22 Jan - Sun, 25 Jan ONT Ontario SFO San Francisco £222 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ONT,to:SFO,departure:22/01/2026TANYT&leg2=from:SFO,to:ONT,departure:25/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:221.90&airProductToken=AQo1CjMI1YIBEgM2OTgYrpsBILJxKL-VgwMwmpaDAzhMQABYAWoHRUNPTk9NWXIITEFHMkpLRFMKNQozCNWCARIDNDg3GLJxIK6bASiUs4MDMOazgwM4VEAAWAFqB0VDT05PTVlyCFRBQTVKS0ROEgoIARABGAEqAlVBGAEiBAgBEAEoAigDKAQwAQ) ![Aeromexico](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/am.gif) Tue, 24 Feb - Thu, 5 Mar ONT Ontario GDL Guadalajara £239 Return found 1 day ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ONT,to:GDL,departure:24/02/2026TANYT&leg2=from:GDL,to:ONT,departure:05/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:238.40&airProductToken=AQp0Cj8IwZoBEgQ0MDUwGK6bASDyEijogoYDMNeDhgM4VkAAWAFqBkJBU0lDQXIITkxOUTZTQkR6CgjEmAESBDQwNTAKMQjBmgESAzc5MxjyEiDmWCj-g4YDMOqFhgM4VkABWAFqBkJBU0lDQXIITkxOUTZTQkQKdAoxCMGaARIDNzkyGOZYIPISKPfrhgMw4-2GAzhWQABYAWoGQkFTSUNBcghOTE5RNlNCRAo_CMGaARIENDQwMhjyEiCumwEox--GAzC18IYDOFZAAVgBagZCQVNJQ0FyCE5MTlE2U0JEegoIxJgBEgQ0NDAyEgoIARABGAEqAkFNGAEiBAgBEAEoAigDKAQwAQ) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Sun, 14 Jun - Mon, 15 Jun ONT Ontario LAS Las Vegas £290 Return found 2 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ONT,to:LAS,departure:14/06/2026TANYT&leg2=from:LAS,to:ONT,departure:15/06/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:289.20&airProductToken=AQprCjQI1YIBEgQyNDQ2GK6bASCDaSiw148DMLPYjwM4U0AAWAFqB0VDT05PTVlyCFNBQTRBS0ROCjMI1YIBEgM1MjYYg2kgi5ABKPrZjwMw8NqPAzhTQAFYAWoHRUNPTk9NWXIIU0FBNEFLRE4KagozCNWCARIDNTk2GIuQASCDaSiM448DMPrjjwM4VEAAWAFqB0VDT05PTVlyCFRBQTJBS0ROCjMI1YIBEgM0MzAYg2kgrpsBKIvljwMwleaPAzhUQAFYAWoHRUNPTk9NWXIIVEFBMkFLRE4SCggBEAEYASoCVUEYASIECAEQASgCKAMoBDAB) ## Frequently asked questions ### What is the airport code for Los Angeles - Ontario Intl. Airport (ONT)? ### How many terminals are there in Ontario Airport and how early should I arrive before my flight? ### Does Ontario Airport have a hotel? ### Are there private lounges in Los Angeles - Ontario Intl. Airport (ONT)? ### What airlines fly out of Ontario Airport? > - American Airlines > - Frontier Airlines > - Delta Air Lines > > > Cross a new country off your travel bucket list with China Airlines. This leading international airline has flights out of Los Angeles - Ontario Intl. Airport (ONT) and will have a destination that'll make you want to click the "book" button. ### How many flights per day fly out of ONT? ### How to find cheap flights from ONT with Expedia? ### Where can you fly to from Los Angeles - Ontario Intl. Airport (ONT)? ### What is the cancellation policy on flights and how do I cancel my flight on Expedia? ## Travel information ## Los Angeles - Ontario Intl. Airport Information | Airport Name | Airport Location | Airport Code | Latitude | Longitude | Altitude | | ------------- | ---------------- | ------------------------------------- | --------- | ------------ | ------------- | | Ontario Intl. | Ontario, US | IATA: ONT, ICAO: KONT, GPS Code: KONT | 34.056000 | \-117.600998 | 287.73 meters | Ontario Intl., ONT airport, offers flights from multiple airline carriers to many popular global destinations. Above you'll find some useful information about Ontario’s airports that can help you in planning your next trip. Expedia offers flights from Ontario Intl. on multiple airline carriers, and makes it easy and affordable for you to book. - [ONT Wikipedia Information](http://en.wikipedia.org/wiki/LA/Ontario_International_Airport) \*Available to Expedia members.