Cheap flights from Ontario, CA to United States
Travel > North America > United States
Travel tip: Visit Houston on your holidays!Check our current prices for flights from Ontario, CA to United States. 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 United States, 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 United States
Recent Deals on Flights from Ontario, CA to United States: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 - $118
Frontier Airlines
cheapoair.com check priceFrom To Departure Time Ontario, CA (ONT) Denver, CO (DEN) 04/14/2025 12:59 am Denver, CO (DEN) Ontario, CA (ONT) 04/27/2025 10:38 pm - $119 Multiple Airlines
cheapoair.com check priceFrom To Departure Time Ontario, CA (ONT) Austin, TX (AUS) 05/07/2025 12:59 am Austin, TX (AUS) Ontario, CA (ONT) 05/14/2025 06:00 am - $120 Frontier Airlines
cheapoair.com check priceFrom To Departure Time Ontario, CA (ONT) Minneapolis, MN (MSP) 04/30/2025 12:10 pm Minneapolis, MN (MSP) Ontario, CA (ONT) 05/13/2025 06:00 am - $138 Multiple Airlines
cheapoair.com check priceFrom To Departure Time Ontario, CA (ONT) Orlando, FL (MCO) 04/29/2025 12:10 pm Orlando, FL (MCO) Ontario, CA (ONT) 05/07/2025 01:43 pm - $24 Frontier Airlines
cheapoair.com check priceFrom To Departure Time Ontario, CA (ONT) Denver, CO (DEN) 04/16/2025 12:59 am - $59 Frontier Airlines
cheapoair.com check priceFrom To Departure Time Ontario, CA (ONT) Las Vegas, NV (LAS) 05/15/2025 06:35 pm - $59 Frontier Airlines
cheapoair.com check priceFrom To Departure Time Ontario, CA (ONT) Minneapolis, MN (MSP) 04/16/2025 03:17 pm - $65 Frontier Airlines
cheapoair.com check priceFrom To Departure Time Ontario, CA (ONT) San Francisco, CA (SFO) 04/16/2025 03:17 pm - $76 Frontier Airlines
cheapoair.com check priceFrom To Departure Time Ontario, CA (ONT) Tampa, FL (TPA) 04/15/2025 12:59 am
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