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Cheap Flights from St Louis (STL) to Colorado Springs (COS)

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      Travellers and cabin class, 1 Adult, Economy

      Compare St Louis to Colorado Springs Peterson Field flight deals

      Find the cheapest month or even day of the year to fly to Colorado Springs Peterson Field

      Book the best Colorado Springs Peterson Field fare with no extra fees

      Flight deals from St Louis to Colorado Springs Peterson Field

      Looking for a cheap last-minute deal or the best return flight from St Louis Airport to Colorado Springs Peterson Field Airport? If you want to travel next month, return fares start from $360. Find the lowest prices on one-way and return tickets right here.
      Colorado Springs.$360 per passenger.Departing Tue, 13 Oct, returning Tue, 20 Oct.Return flight with United.Outbound indirect flight with United, departs from St Louis on Tue, 13 Oct, arriving in Colorado Springs Peterson Field.Inbound indirect flight with United, departs from Colorado Springs Peterson Field on Tue, 20 Oct, arriving in St Louis.Price includes taxes and charges.From $360, select.
      Colorado Springs.$372 per passenger.Departing Sat, 31 Oct, returning Sat, 7 Nov.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from St Louis on Sat, 31 Oct, arriving in Colorado Springs Peterson Field.Inbound indirect flight with Southwest Airlines, departs from Colorado Springs Peterson Field on Sat, 7 Nov, arriving in St Louis.Price includes taxes and charges.From $372, select.
      Colorado Springs.$625 per passenger.Departing Fri, 18 Dec, returning Sat, 19 Dec.Return flight with United.Outbound indirect flight with United, departs from St Louis on Fri, 18 Dec, arriving in Colorado Springs Peterson Field.Inbound indirect flight with United, departs from Colorado Springs Peterson Field on Sat, 19 Dec, arriving in St Louis.Price includes taxes and charges.From $625, select.
      Colorado Springs.$634 per passenger.Departing Sun, 27 Sep, returning Tue, 29 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from St Louis on Sun, 27 Sep, arriving in Colorado Springs Peterson Field.Inbound indirect flight with Delta, departs from Colorado Springs Peterson Field on Tue, 29 Sep, arriving in St Louis.Price includes taxes and charges.From $634, select.
      Colorado Springs.$680 per passenger.Departing Thu, 22 Jul, returning Mon, 26 Jul.Return flight with Delta.Outbound indirect flight with Delta, departs from St Louis on Thu, 22 Jul, arriving in Colorado Springs Peterson Field.Inbound indirect flight with Delta, departs from Colorado Springs Peterson Field on Mon, 26 Jul, arriving in St Louis.Price includes taxes and charges.From $680, select.
      Colorado Springs.$691 per passenger.Departing Fri, 20 Nov, returning Sun, 29 Nov.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from St Louis on Fri, 20 Nov, arriving in Colorado Springs Peterson Field.Inbound indirect flight with Southwest Airlines, departs from Colorado Springs Peterson Field on Sun, 29 Nov, arriving in St Louis.Price includes taxes and charges.From $691, select.
      How did we find these deals? The deals you see here are the lowest prices for flight tickets from St Louis to Colorado Springs Peterson Field found in the last 4 days, and are subject to change and availability.

      Find the cheapest month to fly from St Louis to Colorado Springs Peterson Field

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like St Louis to Colorado Springs Peterson Field flights are currently cheapest in October.
      Sep
      from $634
      Oct
      from $360
      Nov
      from $691
      Dec
      from $625
      Jan
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      Feb
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      Mar
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      Apr
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      May
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      Jun
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      Jul
      from $680
      Aug
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      St Louis to Colorado Springs Peterson Field: Alternative routes

      Compare routes from St Louis to Colorado Springs below. You may find an airport to fly into that's cheaper, faster, or easier than Colorado Springs Peterson Field.

      Colorado Springs Peterson Field

      11km from central Colorado Springs
      ClosestCheapest
      from $360
      Search flights

      Pueblo

      67km from central Colorado Springs
      Search flights

      St Louis to Colorado Springs: Flight information

      The things to know before you go.
      Cheapest flight found$360
      Cheapest month to flyOctober

      Finding cheap flights from St Louis to Colorado Springs Peterson Field: Frequently asked questions

      The best price we found for a return flight from St Louis to Colorado Springs Peterson Field is $360. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      Currently, there are no airlines that fly direct from St Louis to Colorado Springs Peterson Field. But we found flights with one or more stops from $360.
      As of September 2026, there are no flights flying from St Louis to Colorado Springs Peterson Field.
      The cheapest month to fly from St Louis to Colorado Springs Peterson Field is usually October.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from St Louis Airport to Colorado Springs Peterson Field Airport on Tuesday, 13 October 2026.
      No airlines currently offer direct flights between St Louis Airport and Colorado Springs Peterson Field Airport. Most routes have one or more stops.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Colorado Springs Peterson Field but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Colorado Springs is around 40 days in advance, so don’t leave your flight to the last minute.

      Currently, United offers the cheapest flight tickets to Colorado Springs Peterson Field.

      Flying from St Louis Airport (STL) to Colorado Springs Peterson Field Airport (COS): what you need to know

      • Colorado Springs's timezone is UTC-7, which makes Colorado Springs one hour behind St Louis.

      • To ensure you get on your STL to COS flight, leave plenty of time to check in and drop off your luggage. Arriving two hours before international departures and one hour before domestic flights is the general travel rule.

      • Flying during a peak month like July? School holidays and other popular periods can result in longer lines and delays at airport checkpoints. Play it safe and arrive up to four hours before international flights and two hours before domestic departures.

      • We make it easy to book a flight with a stopover. To see all your options for tickets from St Louis Airport to Colorado Springs Peterson Field Airport, uncheck 'Direct flights only.' Then, pick a flight that has a stop long enough to visit the city of your choice. Worthwhile stopovers between STL and COS include:

        • Dallas Fort Worth International Airport

        • Denver International Airport

        • Dallas Love Field Airport

      How to find the cheapest flights from St Louis Airport (STL) to Colorado Springs Peterson Field Airport (COS)

      • The lowest price we've found for a one-way St Louis Airport to Colorado Springs Peterson Field Airport flight is $276. A return ticket right now is $360. Depending on the availability and when you book, these fares can change.

      • To find cheap tickets from STL to COS, book as early as you can. Airlines typically offer lower prices when flights are first made available.

      • Getting cheap flights from St Louis Airport to Colorado Springs Peterson Field Airport is more likely if you're flexible with your travel dates. Use the 'Whole month' search function to see the lowest fares throughout the month and score a great deal.

      • Save time looking for cheap flights from STL to COS by creating a Price Alert. You'll get an email or notification on the app when a new discounted fare appears.

      • Discover the right flight for you with the help of the filters. To see the 'Best,' 'Fastest' or 'Cheapest' flights from St Louis Airport to Colorado Springs Peterson Field Airport, use the 'Sort by' tool. You can also filter by airline, departure and arrival times, and number of stops.

      Handy information about St Louis Airport (STL)

      Arriving at Colorado Springs Peterson Field Airport (COS)

      Getting from Colorado Springs Peterson Field Airport (COS) to central Colorado Springs

      • You'll find COS at 7770 Milton E. Proby Parkway.

      • Colorado Springs Peterson Field Airport is approximately 10 kilometres from the centre of Colorado Springs. The drive time takes around 15 minutes.

      • It takes roughly 45 minutes when travelling by public transport.

      When to fly to Colorado Springs Peterson Field Airport (COS)

      • The quietest month for a flight from St Louis Airport to Colorado Springs Peterson Field Airport is January, while August is the busiest. Choose the best time to visit Colorado Springs based on whether you prefer a faster pace or a more relaxed vibe.

      • The warmest month in Colorado Springs is July, with the temperature ranging between 12ºC (54ºF) and 30ºC (86ºF). Lock in your flights from St Louis Airport to Colorado Springs Peterson Field Airport in this month if this is the kind of weather you like.

      • January has average temperatures of between -10ºC (14ºF) and 7ºC (45ºF). Search for cheap tickets from STL to COS around that time if you like travelling in cooler conditions.

      Explore more of the United States

      • Colorado Springs has its own special appeal, but there are so many other corners of the United States waiting to be discovered. About 105 kilometres north of Colorado Springs, a trip to Denver will keep you on the go. Start with popular sights like Denver Art Museum, Meow Wolf Denver's Convergence Station and Ballpark.

      • Around 451 kilometres south of Colorado Springs, Albuquerque is another essential stop in the United States. Start your sightseeing at Balloon Fiesta Park, Anderson Abruzzo Albuquerque International Balloon Museum and Petroglyph National Monument.

      Plan smart, explore more

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      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.