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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Travelgrove
 
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

Price overview for flights from Ontario to North America

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

  • $388Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)Saint Louis, MO (STL)06/05/202208:09 pm
    Saint Louis, MO (STL)Ontario, CA (ONT)06/10/202206:35 pm
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  • $388Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)Saint Louis, MO (STL)09/21/202208:12 pm
    Saint Louis, MO (STL)Ontario, CA (ONT)10/04/202201:59 pm
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  • $388Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)Saint Louis, MO (STL)09/21/202212:38 am
    Saint Louis, MO (STL)Ontario, CA (ONT)09/28/202201:59 pm
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  • $400Multiple Airlines flight Multiple Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)Durham, NC (RDU)05/24/202205:30 am
    Durham, NC (RDU)Ontario, CA (ONT)06/08/202205:51 pm
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  • $430Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)Saint Louis, MO (STL)05/19/202209:43 pm
    Saint Louis, MO (STL)Ontario, CA (ONT)05/30/202206:44 pm
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  • $103Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)Durham, NC (RDU)05/25/202205:30 am
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  • $194Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)Detroit, MI (DTW)09/07/202208:12 pm
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  • $197Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)Detroit, MI (DTW)05/24/202208:49 pm
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  • $200Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)Saint Louis, MO (STL)06/14/202201:00 pm
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  • $230Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)Saint Louis, MO (STL)06/25/202202:39 pm
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Know what to do when flying to North America?

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