€89 Cheap Flights St. Louis to Denver (STL-DEN)
Popular airlines from St. Louis Lambert Intl. Airport (STL) to Denver Intl. Airport (DEN)
Frontier AirlinesFrontier Airlines
American AirlinesAmerican Airlines
UnitedUnited
Southwest AirlinesSouthwest Airlines
DeltaDelta
Alaska AirlinesAlaska Airlines
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Cheap Flights from St. Louis to Denver (STL-DEN)
Find the cheapest month to fly from St. Louis (STL) to Denver (DEN)
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St. Louis to Denver Flights
When looking for plane tickets from St. Louis to Denver, the ease and convenience of using Expedia simply can’t be beat. With tons of departure points and flights options from the top airline carriers, Expedia gives you the widest array of cheap flights to Denver. Look for STL to DEN airfare with the assurance that you have the largest online travel agency working for you.
Expedia lets you search across the largest number of airlines and Denver flights, which means that you’ll be able to find a great flight deal at the perfect travel date and time. Our simple-to-use booking engine makes looking for terrific bargains easy and hassle-free; just enter your travel dates and departure city, and let Expedia do the rest! Adjust your travel dates and explore connecting flights to find an even better deal on your St. Louis Denver flight!
Browse through dozens of options and rest assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your St. Louis to Denver trip. There’s simply no substitute for great prices suited to your travel needs and backed by excellent customer support.
Combine your Denver flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from St. Louis to Denver with Expedia. Use us as your stop travel destination and have the confidence that you’re getting a bargain!
Frequently Asked Questions
How much is a flight from St. Louis Lambert International Airport to DIA airport?
Pack your bags, because round-trip flights from Lambert Field to DIA airport start from €176. That's based on fares advertised within the last 7 days on Expedia for flights departing within the next year. Prices can change quickly, so book now to nab the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from St. Louis Lambert International Airport to Denver Intl. Airport (DEN)?
Every air carrier has its own terms and conditions. If you do decide to cancel, follow the simple instructions on our Customer Service Portal.
How do I find cheap flights from Lambert Field to DIA airport 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 St. Louis Lambert International Airport to DIA airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Lambert Field to Denver Intl. Airport (DEN)?
That new movie you've been eager to see will have to wait — the flight distance between Lambert Field and Denver Airport is only 1,250 kilometres. The captain will be instructing you to put your seat upright for landing before you know it.
Which airlines fly direct from STL to DEN?
Southwest Airlines (WN) is one of the top choices for many travellers flying between Lambert Field and DEN. Select from the 178 flights it operates on this route each month. You could also take a look at fares with United Airlines (UA). This carrier operates 121 flights a month between St. Louis and Denver.
Are St. Louis Lambert International Airport to Denver Airport flight tickets cheaper when they're purchased at the last minute?
Last-minute bookings from St. Louis Lambert International Airport to Denver Airport can be hit-or-miss. It is possible to find a bargain, but then again, you could miss out entirely! If you'd prefer to play it safe and start your trip planning early on, Expedia compares flight deals up to 12 months in advance. Just keep in mind that not all airlines release their prices so far in advance. Our top tip? Check back often as prices are updated frequently.
Travel information
Origin airport | St. Louis Lambert Intl. Airport |
|---|---|
Destination airport | Denver Intl. Airport |
Distance | 1,235 km away |
Airlines serving | Frontier Airlines, American Airlines, United, Southwest Airlines, Delta, Alaska Airlines |
Popular airline | Frontier Airlines |
Return price | €176 |
Average flight time | 2 hours 25 mins |