Cheap Flights from Ontario to San Diego starting at S$ 51
Book one-way or return flights from Ontario to San Diego from as little as S$ 51. Choose from the popular airlines below and book your flight today!
- One way
- Round-trip
- ONT12:393h 47m1 stopSAN16:26Tue, May 14|Ontario - San Diego|Frontier AirlinesS$ 51S$ 8136% OFF36% OFFS$ 81S$ 51
- ONT07:5812h 34m1 stopSAN20:32Wed, May 8|Ontario - San Diego|Frontier AirlinesS$ 52S$ 8136% OFF36% OFFS$ 81S$ 52
- ONT12:393h 47m1 stopSAN16:26Tue, May 7|Ontario - San Diego|Frontier AirlinesS$ 59S$ 8127% OFF27% OFFS$ 81S$ 59
- ONT13:265h 53m1 stopSAN19:19Thu, May 23|Ontario - San Diego|Frontier AirlinesS$ 60S$ 60
- ONT14:254h 59m1 stopSAN19:24Wed, Jun 12|Ontario - San Diego|Frontier AirlinesS$ 63S$ 63
- ONT14:294h 55m1 stopSAN19:24Sat, Jun 8|Ontario - San Diego|Frontier AirlinesS$ 63S$ 63
- ONT12:305h 1m1 stopSAN17:31Wed, May 22|Ontario - San Diego|Frontier AirlinesS$ 65S$ 65
- ONT13:265h 53m1 stopSAN19:19Thu, May 30|Ontario - San Diego|Frontier AirlinesS$ 67S$ 67
- ONT17:416h 12m1 stopSAN23:53Sat, Jun 1|Ontario - San Diego|Frontier AirlinesS$ 69S$ 69
- ONT17:416h 12m1 stopSAN23:53Tue, May 21|Ontario - San Diego|Frontier AirlinesS$ 72S$ 72
- ONT13:003h 5mDirectSAN14:00Fri, May 10|Ontario - San Diego|Frontier AirlinesFind More FlightsFind More Flights
Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
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Discover different routes, airlines, and transfers and find the best alternative flights for your journey from Ontario to San Diego.
- CheapestONT12:393h 47m1 transferSAN16:26Ontario International Airport - San Diego International AirportTue, May 14Frontier AirlinesS$ 51
- ONT12:393h 47m1 transferSAN16:26Ontario International Airport - San Diego International AirportTue, May 14Frontier AirlinesS$ 51Find More Flights
Frequently Asked Questions
How to find a cheap flight from Ontario to San Diego
Cheapest direct flight price | S$ 51 |
---|---|
Cheapest return ticket price | S$ 411 |
Cheapest month | September |
Peak season for travel | December |
Flight distance | 12,520.52km |
Popular airline | United Airlines |
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Popular Airlines to San Diego
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