Cheap flights from Ontario to Saint Louis

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

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From $288 / RT details

Book your flight now with Cheapoair.com and save!

Cheap Saint Louis airfares from $288/RT are provided by Cheapoair.com. Outbound flight is leaving on 04/28/2021, 11:38 am from Ontario Int`l (ONT) airport and arrives at St. Louis Intl (STL) at 11:47 pm. The flight time is 12 hours and 9 minutes. The Returning flight departes on 05/05/2021, 02:45 pm (other return dates are also available). Date posted: 13 Jan 2021

Price evolution for flights From Ontario To Saint Louis

Price overview for flights from Ontario to Saint Louis

Recent Deals on Flights from Ontario to Saint Louis:Roundtrip / Oneway

  • $288Multiple Airlines flight Multiple Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)Saint Louis, MO (STL)04/28/202111:38 am
    Saint Louis, MO (STL)Ontario, CA (ONT)05/05/202102:45 pm
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  • $303Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)Saint Louis, MO (STL)04/28/202111:38 am
    Saint Louis, MO (STL)Ontario, CA (ONT)05/05/202108:37 pm
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  • $310Multiple Airlines flight Multiple Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)Saint Louis, MO (STL)03/30/202112:33 pm
    Saint Louis, MO (STL)Ontario, CA (ONT)04/14/202102:45 pm
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  • $325Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)Saint Louis, MO (STL)08/23/202112:07 pm
    Saint Louis, MO (STL)Ontario, CA (ONT)09/02/202102:03 pm
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  • $325Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)Saint Louis, MO (STL)03/30/202112:33 pm
    Saint Louis, MO (STL)Ontario, CA (ONT)04/14/202108:37 pm
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  • $51Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)Saint Louis, MO (STL)03/30/202102:15 pm
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  • $141Alaska Airlines flight Alaska Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)Saint Louis, MO (STL)04/20/202112:10 pm
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  • $141Alaska Airlines flight Alaska Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)Saint Louis, MO (STL)04/21/202112:10 pm
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  • $157Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)Saint Louis, MO (STL)04/21/202106:39 pm
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  • $179Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)Saint Louis, MO (STL)03/14/202105:50 pm
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Specify your search details. Browse the cheapest flights from Ontario to Saint Louis, Saint Louis hotel rooms and Ontario to Saint Louis vacation packages from the most popular providers, airline consolidators and travel search engines.

Know what to do when flying to Saint Louis?

Saint Louis Travel Guide In 1764, René Augusta Chouteau and Pierre Laclede established Saint Louis as a fur trading post, after Louis IX, the king of France. The Soulard Farmer’s Market, which was founded in 1779, is in operation till date and prides [...]
Saint Louis History  Saint Louis, which belongs to the state of Missouri, is the second largest city in the state and has a rich history behind it. The city traces its roots back to the year 1763. It was founded by Pierre LaClede. He founded the city as a place [...]
Saint Louis Sightseeing Saint Louis is located in the state of Missouri and happens to be the second largest city in the state. It is also referred to as the ‘Gateway City’ by many people. The city experiences a large footfall of visitors from all over the [...]
Saint Louis Nightlife Saint Louis is one of the famous cities in Missouri and has a lot of attractions for tourists to enjoy. It provides everyone with many opportunities to spend quality time. People can not only enjoy visiting the various tourist spots that are [...]

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