Cheap flights from Ontario, CA to North America

Travel > North America

Check our current prices for flights from Ontario, CA to North America. 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 North America, you will need to run a search below.

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From $86 / RT details

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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 North America

Recent Deals on Flights from Ontario, CA to North America:Roundtrip / Oneway

• $86 Multiple Airlines 

  From	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

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• $118 Frontier Airlines 

  From	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

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• $119 Multiple Airlines 

  From	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

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• $120 Frontier Airlines 

  From	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

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• $138 Multiple Airlines 

  From	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

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• $24 Frontier Airlines 

  From	To	Departure	Time
  Ontario, CA (ONT)	Denver, CO (DEN)	04/16/2025	12:59 am

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• $59 Frontier Airlines 

  From	To	Departure	Time
  Ontario, CA (ONT)	Las Vegas, NV (LAS)	05/15/2025	06:35 pm

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• $59 Frontier Airlines 

  From	To	Departure	Time
  Ontario, CA (ONT)	Minneapolis, MN (MSP)	04/16/2025	03:17 pm

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• $65 Frontier Airlines 

  From	To	Departure	Time
  Ontario, CA (ONT)	San Francisco, CA (SFO)	04/16/2025	03:17 pm

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• $76 Frontier Airlines 

  From	To	Departure	Time
  Ontario, CA (ONT)	Tampa, FL (TPA)	04/15/2025	12:59 am

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