Title: Cheap Flights from St. Louis (STL) to Aspen (ASE) - Expedia.ca ![](https://images.trvl-media.com/place/423/14412dec-edd8-44a2-985b-a6aa8537824c.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/423/14412dec-edd8-44a2-985b-a6aa8537824c.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from St. Louis (STL) to Aspen (ASE) - [Roundtrip](?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 Lambert-St. Louis International Airport (STL) to Aspen/Pitkin County Airport (ASE) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:STL,to:ASE,departure:12/01/2026TANYT&leg2=from:ASE,to:STL,departure:19/01/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.ca/Flights-Search?leg1=from:STL,to:ASE,departure:12/01/2026TANYT&leg2=from:ASE,to:STL,departure:19/01/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![Delta](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.ca/Flights-Search?leg1=from:STL,to:ASE,departure:12/01/2026TANYT&leg2=from:ASE,to:STL,departure:19/01/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* - ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* - ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) __Flight from St. Louis to Aspen (STL - ASE) route information__ | Origin airport | Lambert-St. Louis Intl. | | ------------------- | ----------------------- | | Destination airport | Pitkin County | | Distance | 1416 km | ## St. Louis to Aspen Flights **The easy way to book your flights from St. Louis to Aspen** With Expedia, it’s simple to find and book flights to Aspen from St. Louis whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from airlines that cover this route. There are nonstop flights to Pitkin County, too. Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from St. Louis to Aspen today, tomorrow, or this week. **Save dollars with cheap flights from Lambert-St. Louis Intl., STL to Pitkin County, ASE** Sort your search results by price to find great deals on your flight from St. Louis to Aspen—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Aspen from St. Louis currently is just rising to . Here are more money-saving tips: - Fly in when flight prices are normally at their lowest - Book about a month to 6 weeks before you travel for the best prices to Aspen - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! **Reasons to choose Expedia for your flight to Aspen from St. Louis** Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Aspen with Expedia today. ## Frequently asked questions ### How much is a flight from Lambert Field to Pitkin County Airport (ASE)? ### Do I need to pay a cancellation fee if I cancel my flight from Lambert-St. Louis Intl. Airport (STL) to Pitkin County Airport (ASE)? ### How do I find cheap flights from Lambert Field to ASE that have flexible change policies? ### How many hours is the flight from STL to ASE? ### How far is the flight from Lambert-St. Louis Intl. Airport (STL) to ASE? ### Which airlines fly direct from Lambert-St. Louis Intl. Airport (STL) to Pitkin County Airport (ASE)? ### Are Lambert Field to ASE flight tickets cheaper when they're purchased at the last minute? \*Available to Expedia members.