Cheap flights from Ontario, CA to San Francisco
Travel > North America > United States > Ontario, CA to San Francisco flights
Check our current prices for flights from Ontario, CA to San Francisco. Please note that we also give you historical search data for this city connection. These are all airfares that people found in the past, in order to find more current flight information from Ontario, CA to San Francisco, you will need to run a search below.
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Cheap San Francisco airfares from $86/RT are provided by Cheapoair.com. Outbound flight is leaving on 05/21/2025, 12:59 am from Ontario Int`l (ONT) airport and arrives at San Francisco Intl (SFO) at 03:17 pm. The flight time is 14 hours and 18 minutes. The Returning flight departes on 06/04/2025, 01:08 pm (other return dates are also available). Date posted: 01 Feb 2025
Price evolution for flights From Ontario, CA To San Francisco
Recent Deals on Flights from Ontario, CA to San Francisco:Roundtrip / Oneway
- $86
Multiple Airlines
cheapoair.com check priceFrom To Departure Time Ontario, CA (ONT) San Francisco, CA (SFO) 05/21/2025 12:59 am San Francisco, CA (SFO) Ontario, CA (ONT) 06/04/2025 01:08 pm - $414
Frontier Airlines
cheapoair.com check priceFrom To Departure Time Ontario, CA (ONT) San Francisco, CA (SFO) 03/15/2025 02:43 pm San Francisco, CA (SFO) Ontario, CA (ONT) 03/21/2025 08:16 am - $65 Frontier Airlines
cheapoair.com check priceFrom To Departure Time Ontario, CA (ONT) San Francisco, CA (SFO) 04/16/2025 03:17 pm - $68 Frontier Airlines
cheapoair.com check priceFrom To Departure Time Ontario, CA (ONT) San Francisco, CA (SFO) 03/16/2025 08:26 am - $140 Frontier Airlines
cheapoair.com check priceFrom To Departure Time Ontario, CA (ONT) San Francisco, CA (SFO) 04/05/2025 12:49 am - $140 Frontier Airlines
cheapoair.com check priceFrom To Departure Time Ontario, CA (ONT) San Francisco, CA (SFO) 04/15/2025 12:27 pm
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Know what to do when flying to San Francisco?
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