Cheap Flights from Colorado Springs Peterson Field to St Louis

Compare Colorado Springs Peterson Field to St Louis flight deals

Find the cheapest month or even day of the year to fly to St Louis

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Flight deals from Colorado Springs Peterson Field to St Louis

Looking for a cheap last-minute deal or the best return flight from Colorado Springs Peterson Field Airport to St Louis Airport? If you want to travel next month, return fares start from $535. Find the lowest prices on one-way and return tickets right here.

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

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Colorado Springs Peterson Field to St Louis flights are currently cheapest in September.

Colorado Springs Peterson Field to St Louis: Alternative routes

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

Colorado Springs to St Louis: Flight information

The things to know before you go.
Cheapest flight found$403
Cheapest month to flySeptember

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

The best price we found for a return flight from Colorado Springs Peterson Field to St Louis is $404. 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 Colorado Springs Peterson Field to St Louis. But we found flights with one or more stops from $403.
As of June 2026, there are no flights flying from Colorado Springs Peterson Field to St Louis.
The cheapest month to fly from Colorado Springs Peterson Field to St Louis is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Colorado Springs Peterson Field Airport to St Louis Airport on Tuesday, 15 September 2026.
No airlines currently offer direct flights between Colorado Springs Peterson Field Airport and St Louis 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 St Louis 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 St Louis is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Delta offers the cheapest flight tickets to St Louis.

Flying from Colorado Springs Municipal Airport (COS) to Lambert-St. Louis International Airport (STL): what you need to know

  • St Louis's timezone is UTC-5, which makes St Louis one hour ahead of Colorado Springs.

  • For a stress-free journey, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This way, you can comfortably catch your COS to STL flight.

  • Be prepared for longer queues during popular months such as July. Arriving up to four hours in advance for an international flight and two hours for domestic departures will give you ample time for security and boarding.

  • Think about adding a stopover when booking your ticket from Colorado Springs Municipal Airport to Lambert-St. Louis International Airport. Simply deselect 'Direct flights only' to break up your trip, or perhaps explore a new destination along the way. Check out these options between COS and STL:

    • Denver International Airport

    • Dallas Love Field Airport

    • Dallas/Fort Worth International Airport

How to find the cheapest flights from Colorado Springs Municipal Airport (COS) to Lambert-St. Louis International Airport (STL)

  • The lowest price we've seen for a one-way Colorado Springs Municipal Airport to Lambert-St. Louis International Airport flight is $167. A return ticket is currently $404. Depending on the availability and when you book, these fares may change.

  • To score cheap tickets from COS to STL, book in advance. Airlines typically offer their best fares when flights are first made available.

  • If you're flexible with your travel dates, use the 'Whole month' search function. It'll show you the cheapest price across every month when searching for a flight from Colorado Springs Municipal Airport to Lambert-St. Louis International Airport.

  • Spend less time searching for cheap flights from COS to STL by setting up a Price Alert. You'll receive an email or push notification on the app when a lower fare pops up.

  • Pick your preferred arrival and departure times, number of stops and airlines with the filters. Alternatively, sort your results by 'Cheapest' to see the best deals on flights from Colorado Springs Municipal Airport to Lambert-St. Louis International Airport.

Handy information about Colorado Springs Municipal Airport (COS)

  • COS is located at 7770 Milton E. Proby Parkway.

  • Colorado Springs Municipal Airport maintains a strong on-time performance, reducing the likelihood of delays. Departures from COS land on schedule 83.68% of the time.

  • To get to Colorado Springs Municipal Airport from central Colorado Springs, it'll take around 20 minutes if you're going by car. This depends on traffic, however. It's approximately 16 kilometres from the airport to the city centre.

  • You can expect a journey time of around 1 hour 5 minutes when using public transport.

  • Get your break off to a hassle-free start by staying near COS. Whether you're taking an early flight from Colorado Springs Municipal Airport to Lambert-St. Louis International Airport or just don't want to be rushed, these hotels are ideal:

Arriving at Lambert-St. Louis International Airport (STL)

Getting from Lambert-St. Louis International Airport (STL) to central St Louis

  • STL is located at 10701 Lambert International Blvd..

  • Lambert-St. Louis International Airport to the centre of St Louis has a drive time of around 20 minutes. It's approximately 26 kilometres away.

  • Travelling to the centre on public transport takes around 35 minutes.

When to fly to Lambert-St. Louis International Airport (STL)

  • July is the busiest month for flights from Colorado Springs Municipal Airport to Lambert-St. Louis International Airport. To steer clear of the crowds, travel to St Louis in April.

  • Book your flight from Colorado Springs Municipal Airport to Lambert-St. Louis International Airport for July if you want to explore St Louis during its warmest month. You can expect temperatures of between 17ºC and 33ºC.

  • Search for cheap tickets from COS to STL in January if you like cooler conditions. Temperatures are at their lowest around then, ranging between -8ºC and 7ºC on average.

Explore more of United States

  • St Louis has plenty to offer, but there are so many other parts of United States just waiting to be discovered. Around 418 kilometres north-east of St Louis, a trip to Chicago will keep you busy. Start with popular sights like Millennium Park, Art Institute of Chicago and LandShark Beer Garden at Navy Pier.

  • If you're ready to explore another well-known destination in United States, consider Indianapolis, roughly 370 kilometres east of St Louis. The Children's Museum of Indianapolis, Indianapolis Museum of Art and Indianapolis Zoo are highlights.

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