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Cheap Flights from Ontario to San Francisco
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Cheap Flights from Ontario to San Francisco starting at S$ 25
We've found these cheap flights for you. You can book one-way or return flight tickets.
- One way
- Round-trip
- ONT12:481h 30mDirectSFO14:18Tue, Apr 9|Ontario - San Francisco|Frontier AirlinesS$ 25S$ 3221% OFF21% OFFS$ 32S$ 25
- ONT07:361h 26mDirectSFO09:02Tue, May 21|Ontario - San Francisco|Frontier AirlinesS$ 25S$ 3221% OFF21% OFFS$ 32S$ 25
- ONT07:531h 27mDirectSFO09:20Tue, May 14|Ontario - San Francisco|Frontier AirlinesS$ 26S$ 3220% OFF20% OFFS$ 32S$ 26
- ONT07:581h 27mDirectSFO09:25Wed, May 15|Ontario - San Francisco|Frontier AirlinesS$ 26S$ 26
- ONT07:531h 27mDirectSFO09:20Tue, Apr 23|Ontario - San Francisco|Frontier AirlinesS$ 27S$ 27
- ONT07:531h 27mDirectSFO09:20Wed, Apr 10|Ontario - San Francisco|Frontier AirlinesS$ 27S$ 27
- ONT12:441h 25mDirectSFO14:09Wed, Apr 17|Ontario - San Francisco|Frontier AirlinesS$ 27S$ 27
- ONT07:531h 27mDirectSFO09:20Tue, Apr 16|Ontario - San Francisco|Frontier AirlinesS$ 27S$ 27
- ONT07:581h 27mDirectSFO09:25Wed, May 8|Ontario - San Francisco|Frontier AirlinesS$ 27S$ 27
- ONT07:531h 27mDirectSFO09:20Tue, May 7|Ontario - San Francisco|Frontier AirlinesS$ 27S$ 27
- ONT13:003h 5mDirectSFO14:00Fri, Apr 5|Ontario - San Francisco|Frontier AirlinesFind More FlightsFind More Flights
Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
Cheapest time to fly from Ontario to San Francisco
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Displayed prices are calculated based on the lowest average weekly prices of the corresponding route on Trip.com.
Cheapest Airlines flying from Ontario to San Francisco
Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.
Frontier Airlines
From S$ 25
Southwest Airlines
From S$ 95
United Airlines
From S$ 124
Alaska Airlines
From S$ 161
American Airlines
From S$ 270
Delta Air Lines
From S$ 286
ANA airlines
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