Title: Cheap Flights from Colorado Springs to St. Louis (COS to STL) - Expedia.co.uk ![](https://images.trvl-media.com/place/178309/1d118261-eb93-42dd-aeef-5f82e1f037e8.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/178309/1d118261-eb93-42dd-aeef-5f82e1f037e8.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Colorado Springs (COS) to St. Louis (STL) - [Return](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Colorado Springs Municipal Airport (COS) to Lambert-St. Louis International Airport (STL) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:cos,to:stl,departure:02/10/2025TANYT&leg2=from:stl,to:cos,departure:09/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![Delta](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.co.uk/Flights-Search?leg1=from:cos,to:stl,departure:02/10/2025TANYT&leg2=from:stl,to:cos,departure:09/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.co.uk/Flights-Search?leg1=from:cos,to:stl,departure:02/10/2025TANYT&leg2=from:stl,to:cos,departure:09/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![Southwest Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WN.svg) Southwest Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:cos,to:stl,departure:02/10/2025TANYT&leg2=from:stl,to:cos,departure:09/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}]) - ## Plan, book, fly with confidence - ### Be in the know Get alerts if flight prices drop or rise\* - ### Book smarter Save up to 25% on select hotels after you book a flight\* - ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.co.uk/login) ## Find the cheapest month to fly from Colorado Springs (COS) to St. Louis (STL) ### August is typically the cheapest month to fly From £139 - £441 per traveller. ## Frequently asked questions ### How much is a flight from Colorado Springs Airport (COS) to Lambert-St. Louis Intl. Airport (STL)? > If you're planning on travelling between COS and STL, round-trip flights start from . This figure is based on fares advertised within the last 7 days on Expedia for flights departing within the next year, so don't hang around. Book now and save yourself money and time. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from City of Colorado Springs Municipal Airport to Lambert-St. Louis Intl. Airport (STL)? > Every airline has a different set of terms and conditions. If you decide to cancel your escape, visit our [Customer Service Portal](https://www.expedia.co.uk/service/?langid=1033). ### How do I find cheap flights from COS to Lambert-St. Louis Intl. Airport (STL) that have flexible change policies? > Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Colorado Springs Airport (COS) to St. Louis Lambert International Airport flights, you'll see a "no change fees" filter for you to select. ### How far is the flight from COS to Lambert Field? > That new movie you've been wanting to see will have to wait — the flight distance between COS (COS) and Lambert-St. Louis Intl. Airport (STL) (STL) is only 1,250 kilometres. The captain will be telling you to buckle up for touchdown before you know it. ### Which airlines fly direct from City of Colorado Springs Municipal Airport to St. Louis Lambert International Airport? > Direct flights aren't available, so you'll have to make at least one stop between Colorado Springs Airport (COS) and Lambert-St. Louis Intl. Airport (STL). Make the most of the layover time to stretch your legs and grab a coffee. ### Are COS to STL flight tickets cheaper when they're purchased at the last minute? > It is possible to pick up amazing last-minute deals from COS to St. Louis Lambert International Airport, but it's also possible to miss out altogether! As many airlines release seats up to a year in advance, it's worthwhile keeping an eye on fares early and being ready to book when you spot a bargain. Expedia compares carrier prices and updates flight deals frequently, so you can rest easy knowing you're always getting the latest offers. ## Travel information | Origin airport | Colorado Springs | | --- | --- | | Destination airport | Lambert-St. Louis Intl. | | Distance | 1234 km | ## Book with confidence ### Compare flights from Colorado Springs to St. Louis easily and book with confidence For travelling on business or for pleasure, Expedia makes it easy to book your flights from Colorado Springs to St. Louis. Operating between them flights per day, airlines cover the route. And fly direct, getting you to Lambert-St. Louis Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Colorado Springs to Lambert-St. Louis Intl..   To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights.  Grab a great deal on your flight from Colorado Springs (COS) to Lambert-St. Louis Intl. (STL) The easiest way to view the best deals on flights from Colorado Springs to St. Louis today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Colorado Springs to Lambert-St. Louis Intl. start at just and range up to .   To find an even better deal, try   - being flexible on your dates – midweek flights can be cheaper - looking for other airports near Colorado Springs and St. Louis - booking your flight during , the cheapest month on this route - varying your flight times – early morning and late at night are sometimes cheaper  Why you should book your Colorado Springs to St. Louis flight with Expedia! We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Colorado Springs to Lambert-St. Louis Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.   Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. 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