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Cheap Flights from San Diego to Ontario, CA, United States - SAN to ONT

When Can I Buy the Cheapest Flight from San Diego to Ontario (SAN to ONT)?

Airlines can adjust prices for plane tickets from San Diego to Ontario 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.

Airports for Your Route

These pages contain information about the major airports in San Diego and Ontario, so you can feel comfortable knowing how to get around whether you are about to take off or you just landed.

Cheap Domestic Flights from San Diego - SAN

FlightsAirlineLowest Price
San Diego to Los Angeles American, Alaska, United $207
San Diego to Las Vegas American, Spirit, United $80
San Diego to BurbankCheck Dates
San Diego to Long BeachCheck Dates
San Diego to Santa Ana American, United $411

Cheap Domestic Flights to Ontario - ONT

FlightsAirlineLowest Price
Los Angeles to Ontario American, Alaska, United $405
Santa Ana to Ontario American, Alaska, United Check Dates
Burbank to Ontario American, United Check Dates
Long Beach to Ontario American, United Check Dates
Los Angeles to San Diego American, Alaska, United $205
Los Angeles to Phoenix American, Alaska, Spirit, United, Great Lakes $77
Los Angeles to San Francisco American, Alaska, United, Virgin America $130
Los Angeles to Santa AnaCheck Dates
Santa Barbara to Los Angeles United $155
Palomar to Los AngelesCheck Dates
Los Angeles to Long BeachCheck Dates
Los Angeles to Palm Springs American, Alaska, United $342
Palm Springs to Los Angeles American, Alaska, United $414
Los Angeles to Burbank American, Alaska, United $449
Ontario to Los Angeles American, United $359
Yuma to Los Angeles American, Alaska $218
Burbank to Las VegasCheck Dates
Santa Ana to Las VegasCheck Dates
Santa Ana to Los Angeles American, United $357
Los Angeles to San Jose American, Alaska, United $135
Los Angeles to Oakland Boutique, American, Spirit, United $80
Long Beach to Las Vegas JetBlue, United $75
Ontario to Las VegasCheck Dates
Los Angeles to Seattle American, Alaska, Spirit, United, Virgin America $106

Cheap International Flights to Ontario - ONT

FlightsAirlineLowest Price
Tijuana to Los Angeles Interjet, American, AeroMexico, Alaska, United, Virgin America, Volaris $414
Cheap Flights from San Diego to Ontario, CA, Airfare Search for SAN to ONT, Airline One-Way and Roundtrip Schedules