Title: CA $208 Cheap American Airlines fights from Ontario to San Diego - Expedia.ca ![](https://images.trvl-media.com/place/3073/476a7863-1b66-47b5-9758-1dc7b3787493.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/3073/476a7863-1b66-47b5-9758-1dc7b3787493.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # CA $208 Cheap American Airlines fights from Ontario (ONT) to San Diego (SAN) [View CA $208 flight on Wed, Nov 19, 2025](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:ONT,to:SAN,departure:19/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:207.10&airProductToken=AQppCjMIwYIBEgQxNDIzGK6bASDvuQEot8H9AjCIwv0COEJAAFgBagVCQVNJQ3IIUVZBSUtTQlgKMgjBggESBDMyOTEY77kBIJJoKOjE_QIwsMX9AjhCQAFYAWoFQkFTSUNyCE9WQUtaU0JYEgoIARABGAEqAkFBGAEiBAgBEAEoAigDKAQwCw) - [Roundtrip](?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 ![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 30% 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.ca/login) ## American Airlines flights from Ontario to San Diego (ONT→SAN) Prices were available within the past 7 days and start at CA $208 for one-way flights and CA $420 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Sat, Nov 1 - Sat, Nov 8 ONT Ontario SAN San Diego CA $420 Roundtrip found 9 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:ONT,to:SAN,departure:01/11/2025TANYT&leg2=from:SAN,to:ONT,departure:08/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:419.40&airProductToken=AQppCjMIwYIBEgQxNDIzGK6bASDvuQEoxfb7AjCW9_sCOEJAAFgBagVCQVNJQ3IIUVZBSVhTQlgKMgjBggESBDMyNzAY77kBIJJoKMn6-wIwlvv7AjhCQAFYAWoFQkFTSUNyCE9WQUtaU0JYCmkKMgjBggESBDI0MDQYkmgg77kBKOHF_AIwu8b8AjhCQABYAWoFQkFTSUNyCE9WQUtaU0JYCjMIwYIBEgQxNjY2GO-5ASCumwEo_8j8AjDMyfwCOEJAAVgBagVCQVNJQ3IIUVZBSVhTQlgSCggBEAEYASoCQUEYASIECAEQASgCKAMoBDAL) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Mon, Oct 27 - Thu, Nov 6 ONT Ontario SAN San Diego CA $503 Roundtrip found 9 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:ONT,to:SAN,departure:27/10/2025TANYT&leg2=from:SAN,to:ONT,departure:06/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:502.20&airProductToken=AQpoCjMIwYIBEgQyODU5GK6bASDvuQEo0L_7AjCfwPsCOEJAAFgBagVCQVNJQ3IIR1ZBSVpOQloKMQjBggESAzU1ORjvuQEgkmgoiMP7AjDTw_sCOEJAAVgBagVCQVNJQ3IIT1ZBS1pTQlgKaQoyCMGCARIEMjQwNBiSaCDvuQEooa_8AjD7r_wCOEJAAFgBagVCQVNJQ3IIT1ZBS1pTQlgKMwjBggESBDE2NjYY77kBIK6bASi_svwCMIyz_AI4QkABWAFqBUJBU0lDcghRVkFJVlNCWBIKCAEQARgBKgJBQRgBIgQIARABKAIoAygEMAs) Flight from Ontario to San Diego (ONT - SAN) route information | Origin airport | Los Angeles - Ontario Intl. | | --- | --- | | Destination airport | San Diego Intl. | | Airlines serving | Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, United | | Popular airline | Delta | | Distance | 151 km | ## Frequently asked questions ### How much is an American Airlines flight from Los Angeles - Ontario Intl. Airport (ONT) to San Diego Intl. Airport (SAN)? > You'll discover budget-friendly return American Airlines flights from CA $420 from ONT to SAN by filtering your results from "Price (lowest to highest)" on Expedia. Or search for options from CA $208 for a one-way trip.\**\*These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.* ### What is the cheapest month to fly from ONT to SAN with American Airlines? > Search for one-way or round-trip flights to San Diego in January or November. You could find an affordable fare with American Airlines during these off-season months. ### Does American Airlines fly nonstop from Los Angeles - Ontario Intl. Airport (ONT) to San Diego Intl. Airport (SAN)? > To find out if there's a direct journey from ONT to SAN with American Airlines or any other carriers, use our "Nonstop" filter when looking for tickets. ### What airports does American Airlines fly into in San Diego? > American Airlines flights from Los Angeles - Ontario Intl. Airport (ONT) to San Diego come in to San Diego Intl. Airport (SAN). This is the main entry point here. ### Can I change or cancel my American Airlines flight from Los Angeles - Ontario Intl. Airport (ONT) to San Diego Intl. Airport (SAN)? > Changes are typically free within 24 hours of booking, but your airline may charge a fee after that time. For further information about modifying your flights, check out your "[Trips](https://www.expedia.ca/trips)," select your flight and click on "Manage Booking." If you'd like the freedom to change your plans without being charged, check the "Changes included" and "No cancel fee" filters when planning your next adventure. ## Explore a world of travel with Expedia \*Available to Expedia members.