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 $150 / RT details

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Cheap Saint Louis airfares from $150/RT are provided by Cheapoair.com. Outbound flight is leaving on 05/07/2024, 07:16 am from Ontario Int`l (ONT) airport and arrives at St. Louis Intl (STL) at 03:50 pm. The flight time is 8 hours and 34 minutes. The Returning flight departes on 05/18/2024, 07:29 pm (other return dates are also available). Date posted: 11 Mar 2024

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

  • $150Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)Saint Louis, MO (STL)05/07/202407:16 am
    Saint Louis, MO (STL)Ontario, CA (ONT)05/18/202407:29 pm
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  • $150Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)San Antonio, TX (SAT)04/09/202410:08 pm
    San Antonio, TX (SAT)Ontario, CA (ONT)04/19/202410:59 pm
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  • $172Multiple Airlines flight Multiple Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)Indianapolis, IN (IND)04/19/202412:56 am
    Indianapolis, IN (IND)Ontario, CA (ONT)04/27/202411:05 am
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  • $178Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)San Antonio, TX (SAT)04/22/202412:29 pm
    San Antonio, TX (SAT)Ontario, CA (ONT)05/03/202410:59 pm
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  • $190Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)Indianapolis, IN (IND)03/26/202407:27 am
    Indianapolis, IN (IND)Ontario, CA (ONT)04/10/202410:54 pm
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  • $75Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)San Antonio, TX (SAT)05/08/202412:39 pm
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  • $85Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)Detroit, MI (DTW)04/02/202410:08 pm
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  • $91Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)Detroit, MI (DTW)04/24/202405:12 pm
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  • $91Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)Durham, NC (RDU)04/17/202407:26 am
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  • $91Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)Detroit, MI (DTW)05/01/202410:50 pm
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Know what to do when flying to North America?

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