Cheap flights from Ontario to North America

Travel > North America

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

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From $388 / RT details

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Cheap Saint Louis airfares from $388/RT are provided by Cheapoair.com. Outbound flight is leaving on 06/05/2022, 08:09 pm from Ontario Int`l (ONT) airport and arrives at St. Louis Intl (STL) at 09:20 am. The flight time is 13 hours and 11 minutes. The Returning flight departes on 06/10/2022, 06:35 pm (other return dates are also available). Date posted: 14 Apr 2022

Price evolution for flights From Ontario To North America

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

• $388 Frontier Airlines 

  From	To	Departure	Time
  Ontario, CA (ONT)	Saint Louis, MO (STL)	06/05/2022	08:09 pm
  Saint Louis, MO (STL)	Ontario, CA (ONT)	06/10/2022	06:35 pm

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• $388 Frontier Airlines 

  From	To	Departure	Time
  Ontario, CA (ONT)	Saint Louis, MO (STL)	09/21/2022	08:12 pm
  Saint Louis, MO (STL)	Ontario, CA (ONT)	10/04/2022	01:59 pm

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• $388 Frontier Airlines 

  From	To	Departure	Time
  Ontario, CA (ONT)	Saint Louis, MO (STL)	09/21/2022	12:38 am
  Saint Louis, MO (STL)	Ontario, CA (ONT)	09/28/2022	01:59 pm

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• $400 Multiple Airlines 

  From	To	Departure	Time
  Ontario, CA (ONT)	Durham, NC (RDU)	05/24/2022	05:30 am
  Durham, NC (RDU)	Ontario, CA (ONT)	06/08/2022	05:51 pm

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• $430 Frontier Airlines 

  From	To	Departure	Time
  Ontario, CA (ONT)	Saint Louis, MO (STL)	05/19/2022	09:43 pm
  Saint Louis, MO (STL)	Ontario, CA (ONT)	05/30/2022	06:44 pm

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• $103 Frontier Airlines 

  From	To	Departure	Time
  Ontario, CA (ONT)	Durham, NC (RDU)	05/25/2022	05:30 am

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• $194 Frontier Airlines 

  From	To	Departure	Time
  Ontario, CA (ONT)	Detroit, MI (DTW)	09/07/2022	08:12 pm

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• $197 Frontier Airlines 

  From	To	Departure	Time
  Ontario, CA (ONT)	Detroit, MI (DTW)	05/24/2022	08:49 pm

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• $200 Frontier Airlines 

  From	To	Departure	Time
  Ontario, CA (ONT)	Saint Louis, MO (STL)	06/14/2022	01:00 pm

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• $230 Frontier Airlines 

  From	To	Departure	Time
  Ontario, CA (ONT)	Saint Louis, MO (STL)	06/25/2022	02:39 pm

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