Cheap Flights from Ontario to San Diego, CA, United States - ONT to SAN
When Can I Buy the Cheapest Flight from Ontario to San Diego (ONT to SAN)?
Airlines can adjust prices for plane tickets from Ontario to San Diego based on the day and time that you decide to book your flight. We have collected data from all airlines, and have discovered that the best days to book flights are Tuesdays, Wednesdays, and Saturdays. Read our article to find more information about the best time to buy airline tickets.
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Cheap Domestic Flights to San Diego - SAN
Cheap International Flights to San Diego - SAN
|Mexicali to San Diego||American, AeroMexico, Alaska, United||Check Dates|
|Los Angeles to Tijuana||Interjet, American, AeroMexico, Alaska, United, Virgin America, Volaris||$427|
|Las Vegas to Tijuana||American, AeroMexico, Alaska, United||$610|
|San Diego to Tijuana||Interjet, American, AeroMexico, Alaska, United, VivaAerobus, Volaris||$763|