Cheap flights from Denver to Saint Louis

Travel > North America > United States > Denver to Saint Louis flights

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

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From $111 / RT details

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Cheap Saint Louis airfares from $111/RT are provided by Cheapoair.com. Outbound flight is leaving on 04/16/2025, 06:00 am from Denver International Airport (DEN) airport and arrives at St. Louis Intl (STL) at 09:06 am. The flight time is 3 hours and 6 minutes. The Returning flight departes on 05/01/2025, 04:07 pm (other return dates are also available). Date posted: 20 Feb 2025

Price evolution for flights From Denver To Saint Louis

Price overview for flights from Denver to Saint Louis

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

  • $111Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Denver, CO (DEN)Saint Louis, MO (STL)04/16/202506:00 am
    Saint Louis, MO (STL)Denver, CO (DEN)05/01/202504:07 pm
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  • $149Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Denver, CO (DEN)Saint Louis, MO (STL)03/02/202507:37 pm
    Saint Louis, MO (STL)Denver, CO (DEN)03/10/202505:24 pm
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  • $197Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Denver, CO (DEN)Saint Louis, MO (STL)03/26/202506:26 am
    Saint Louis, MO (STL)Denver, CO (DEN)04/16/202508:00 pm
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  • $219Multiple Airlines flight Multiple Airlines 
    FromToDepartureTime
    Denver, CO (DEN)Saint Louis, MO (STL)03/02/202507:37 pm
    Saint Louis, MO (STL)Denver, CO (DEN)03/10/202506:30 am
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  • $229Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Denver, CO (DEN)Saint Louis, MO (STL)04/06/202508:30 am
    Saint Louis, MO (STL)Denver, CO (DEN)04/15/202504:57 pm
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  • $65Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Denver, CO (DEN)Saint Louis, MO (STL)03/04/202501:20 pm
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  • $146Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Denver, CO (DEN)Saint Louis, MO (STL)04/10/202512:10 am
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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 world [...]
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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