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 Thu, 12 Feb 2026](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:ONT,to:SEA,departure:12/02/2026TANYT&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=AQojCiEIxJgBEgQzNjk3GK6bASCSASiigIUDMNmBhQM4RUAAWAESCggBEAEYASoCREwYASIECAEQASgEMAE) - [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) ### Popular Flights from Los Angeles - Ontario Intl. Airport > - [Ontario to Taipei (ONT - TPE) ](https://expedia.co.uk/lp/flights/ont/tpe/ontario-to-taipei) > - [Ontario to Manila (ONT - MNL) ](https://expedia.co.uk/lp/flights/ont/mnl/ontario-to-manila) > - [Ontario to Reykjavik (ONT - KEF) ](https://expedia.co.uk/lp/flights/ont/kef/ontario-to-reykjavik) > - [Ontario to Guadalajara (ONT - GDL) ](https://expedia.co.uk/lp/flights/ont/gdl/ontario-to-guadalajara) > - [Ontario to London (ONT - LHR) ](https://expedia.co.uk/lp/flights/ont/lhr/ontario-to-london) > - [Ontario to Atlanta (ONT - ATL) ](https://expedia.co.uk/lp/flights/ont/atl/ontario-to-atlanta) > - [Ontario to Cancun (ONT - CUN) ](https://expedia.co.uk/lp/flights/ont/cun/ontario-to-cancun) > - [Ontario to London (ONT - LGW) ](https://expedia.co.uk/lp/flights/ont/lgw/ontario-to-london) > - [Ontario to San Francisco (ONT - SFO) ](https://expedia.co.uk/lp/flights/ont/sfo/ontario-to-san-francisco) ## Flights from Los Angeles - Ontario Intl. Airport Prices were available within the past 7 days and start at £53 for one-way flights and £104 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) Wed, 18 Mar - Wed, 25 Mar ONT Ontario SEA Seattle £104 Return found 1 day ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ONT,to:SEA,departure:18/03/2026TANYT&leg2=from:SEA,to:ONT,departure:25/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:103.60&airProductToken=AQowCi4IwaYBEgM1OTQYrpsBIJIBKPP_hwMwnIGIAzhYQABYAWoCU1ZyCEdIMkVBVkJOCjEKLwjBpgESBDEzNjQYkgEgrpsBKMnJiAMw8cqIAzhYQABYAWoCU1ZyCE9IMkVBVkJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Mon, 16 Mar - Mon, 23 Mar ONT Ontario SEA Seattle £119 Return found 1 day ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ONT,to:SEA,departure:16/03/2026TANYT&leg2=from:SEA,to:ONT,departure:23/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:118.70&airProductToken=AQowCi4IwaYBEgM2MDcYrpsBIJIBKLrjhwMw6eSHAzhYQABYAWoCU1ZyCE9IMkVBVkJOCjAKLgjBpgESAzQ4ORiSASCumwEo2biIAzDyuYgDOFhAAFgBagJTVnIIT0gyRUFWQk4SCggBEAEYASoCQVMYASIECAEQASgCKAMoBDAB) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Wed, 18 Mar - Wed, 25 Mar ONT Ontario PDX Portland £127 Return found 23 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ONT,to:PDX,departure:18/03/2026TANYT&leg2=from:PDX,to:ONT,departure:25/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:126.20&airProductToken=AQoxCi8IwaYBEgM1NDQYrpsBIO-4ASio-ocDMLj7hwM4WEAAWAFqAlNWcghPSDJFWFVCTgoxCi8IwaYBEgMzNDAY77gBIK6bASiXzogDMKHPiAM4WEAAWAFqAlNWcghPSDJFQVZCThIKCAEQARgBKgJBUxgBIgQIARABKAIoAygEMAE) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Fri, 23 Jan - Mon, 26 Jan ONT Ontario PDX Portland £132 Return found 7 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ONT,to:PDX,departure:23/01/2026TANYT&leg2=from:PDX,to:ONT,departure:26/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:131.60&airProductToken=AQoxCi8IwaYBEgM1NDQYrpsBIO-4ASikm4MDML2cgwM4WEAAWAFqAlNWcghPSDJFQVVCTgoxCi8IwaYBEgM1NjUY77gBIK6bASjTwIMDMN_BgwM4WEAAWAFqAlNWcghPSDJFQVVCThIKCAEQARgBKgJBUxgBIgQIARABKAIoAygEMAE) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Fri, 20 Feb - Sun, 1 Mar ONT Ontario SEA Seattle £138 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ONT,to:SEA,departure:20/02/2026TANYT&leg2=from:SEA,to:ONT,departure:01/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:138.00&airProductToken=AQowCi4IwaYBEgM2MDcYrpsBIJIBKPbVhQMwpdeFAzhYQABYAWoCU1ZyCFFIMkVBVkJOCjEKLwjBpgESBDEzNjQYkgEgrpsBKJ68hgMwvL2GAzhYQABYAWoCU1ZyCE9IMkVBVkJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Wed, 18 Mar - Wed, 25 Mar ONT Ontario SEA Seattle £141 Return found 1 day ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ONT,to:SEA,departure:18/03/2026TANYT&leg2=from:SEA,to:ONT,departure:25/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:140.20&airProductToken=AQowCi4IwaYBEgM2NTQYrpsBIJIBKLb8hwMw4P2HAzhYQABYAWoCU1ZyCE9IMkVYVkJOCjAKLgjBpgESAzU5MhiSASCumwEolc2IAzCvzogDOFhAAFgBagJTVnIIUUgyRUFWQk4SCggBEAEYASoCQVMYASIECAEQASgCKAMoBDAB) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Sat, 14 Feb - Sun, 15 Feb ONT Ontario DEN Denver £152 Return found 5 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ONT,to:DEN,departure:14/02/2026TANYT&leg2=from:DEN,to:ONT,departure:15/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:151.60&airProductToken=AQppCjMIwYIBEgQzMDE2GK6bASDvuQEorJWFAzD7lYUDOEJAAFgBagVCQVNJQ3IIT1dBVVVOQlYKMgjBggESBDI2MDEY77kBIINpKNWWhQMwwZeFAzhCQAFYAWoFQkFTSUNyCE9XQVVVTkJWCmkKMgjBggESBDE0MDQYg2kg77kBKMidhQMw056FAzhCQABYAWoFQkFTSUNyCE9XQVVaTkJWCjMIwYIBEgQzMDE2GO-5ASCumwEovZ-FAzCaoIUDOEJAAVgBagVCQVNJQ3IIT1dBVVpOQlYSCggBEAEYASoCQUEYASIECAEQASgCKAMoBDAL) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Sat, 14 Feb - Sun, 15 Feb ONT Ontario DEN Denver £155 Return found 5 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ONT,to:DEN,departure:14/02/2026TANYT&leg2=from:DEN,to:ONT,departure:15/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:154.80&airProductToken=AQpvCjYIxJgBEgQyNzA4GK6bASDyEiiokoUDMJGThQM4RUAAWAFqCU1BSU5CQVNJQ3IIVkFXTkgzQkcKNQjEmAESBDE1NTMY8hIgg2ko65OFAzDUlIUDOEVAAVgBaglNQUlOQkFTSUNyCFZBV05IM0JHCm8KNQjEmAESBDI2NjMYg2kg8hIo8KKFAzDTo4UDOEVAAFgBaglNQUlOQkFTSUNyCFhBV05BMEJHCjYIxJgBEgQxNjE0GPISIK6bASiLpIUDMPikhQM4RUABWAFqCU1BSU5CQVNJQ3IIWEFXTkEwQkcSCggBEAEYASoCREwYASIECAEQASgCKAMoBDAB) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Sat, 14 Feb - Sun, 15 Feb ONT Ontario DEN Denver £186 Return found 5 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ONT,to:DEN,departure:14/02/2026TANYT&leg2=from:DEN,to:ONT,departure:15/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:185.30&airProductToken=AQo2CjQI1YIBEgQxMjYzGK6bASCDaSj5lYUDMIGXhQM4R0AAWAFqB0VDT05PTVlyCEdBSzVBV0ROCjYKNAjVggESBDEyMjEYg2kgrpsBKKyjhQMwwqSFAzhLQABYAWoHRUNPTk9NWXIIS0FBNUFXRE4SCggBEAEYASoCVUEYASIECAEQASgCKAMoBDAB) ![Volaris](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/Y4.gif) Sat, 24 Jan - Sat, 31 Jan ONT Ontario NLU Mexico City £227 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:ONT,to:NLU,departure:24/01/2026TANYT&leg2=from:NLU,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:226.54&airProductToken=AQpgCi4I2WgSBDE4NjEYrpsBIOZYKMqjgwMw_KSDAzhMQABYAWoEWmVyb3IGTExDU1MyCi4I2WgSBDEyOTAY5lgg7aIBKKamgwMw76aDAzhMQAFYAWoEWmVyb3IGTExDU1MyCmAKLgjZaBIEMTI5MxjtogEg5lgok_mDAzDj-YMDOExAAFgBagRaZXJvcgZMTENTUzEKLgjZaBIEMTg2MBjmWCCumwEol_uDAzDc_IMDOExAAVgBagRaZXJvcgZMTENTUzESCggBEAEYASoCWTQYASIECAEQASgCKAMoBDAN) ## 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) ## 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? ## Explore a world of travel with Expedia \*Available to Expedia members.