Cheap Flights from Denver (DEN) to St. Louis (STL)

Airlines that fly from Denver International Airport (DEN) to Lambert-St. Louis International Airport (STL)

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Cheap Flights from Denver (DEN) to St. Louis (STL)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed., 4 Dec. - Wed., 11 Dec.
DEN
Denver
STL
St. Louis
AU$366 Return, found 5 days ago
AU$366
Return
found 5 days ago
Select Delta flight, departing Wed., 4 Dec. from Denver to St. Louis, returning Wed., 11 Dec., priced at AU$366 found 5 days ago
Delta
Thu., 5 Dec. - Wed., 11 Dec.
DEN
Denver
STL
St. Louis
AU$396 Return, found 5 days ago
AU$396
Return
found 5 days ago
Select Delta flight, departing Thu., 5 Dec. from Denver to St. Louis, returning Wed., 11 Dec., priced at AU$396 found 5 days ago
Delta
Tue., 3 Dec. - Wed., 11 Dec.
DEN
Denver
STL
St. Louis
AU$412 Return, found 5 days ago
AU$412
Return
found 5 days ago
Select Delta flight, departing Tue., 3 Dec. from Denver to St. Louis, returning Wed., 11 Dec., priced at AU$412 found 5 days ago
Delta
Thu., 5 Dec. - Tue., 10 Dec.
DEN
Denver
STL
St. Louis
AU$428 Return, found 5 days ago
AU$428
Return
found 5 days ago
Select Delta flight, departing Thu., 5 Dec. from Denver to St. Louis, returning Tue., 10 Dec., priced at AU$428 found 5 days ago
United
Tue., 3 Dec. - Tue., 10 Dec.
DEN
Denver
STL
St. Louis
AU$429 Return, found 5 days ago
AU$429
Return
found 5 days ago
Select United flight, departing Tue., 3 Dec. from Denver to St. Louis, returning Tue., 10 Dec., priced at AU$429 found 5 days ago
Delta
Tue., 3 Dec. - Tue., 10 Dec.
DEN
Denver
STL
St. Louis
AU$443 Return, found 5 days ago
AU$443
Return
found 5 days ago
Select Delta flight, departing Tue., 3 Dec. from Denver to St. Louis, returning Tue., 10 Dec., priced at AU$443 found 5 days ago
United
Thu., 5 Dec. - Thu., 12 Dec.
DEN
Denver
STL
St. Louis
AU$444 Return, found 5 days ago
AU$444
Return
found 5 days ago
Select United flight, departing Thu., 5 Dec. from Denver to St. Louis, returning Thu., 12 Dec., priced at AU$444 found 5 days ago
Delta
Thu., 5 Dec. - Mon., 9 Dec.
DEN
Denver
STL
St. Louis
AU$459 Return, found 5 days ago
AU$459
Return
found 5 days ago
Select Delta flight, departing Thu., 5 Dec. from Denver to St. Louis, returning Mon., 9 Dec., priced at AU$459 found 5 days ago
Delta
Thu., 5 Dec. - Thu., 12 Dec.
DEN
Denver
STL
St. Louis
AU$460 Return, found 5 days ago
AU$460
Return
found 5 days ago
Select Delta flight, departing Thu., 5 Dec. from Denver to St. Louis, returning Thu., 12 Dec., priced at AU$460 found 5 days ago
Delta
Tue., 3 Dec. - Mon., 9 Dec.
DEN
Denver
STL
St. Louis
AU$474 Return, found 5 days ago
AU$474
Return
found 5 days ago
Select Delta flight, departing Tue., 3 Dec. from Denver to St. Louis, returning Mon., 9 Dec., priced at AU$474 found 5 days ago
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Flight from Denver to St. Louis route information
Origin airport
Denver Intl.
Destination airport
Lambert-St. Louis Intl.
Return price
AU$366
Distance
1228 km

Your quick guide to flights from Denver to St. Louis

Pick up great flights from Denver to St. Louis

With Expedia, you have your pick of flights a day with 20 airlines covering flights from Denver to St. Louis. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Denver to St. Louis that take around hours.

Find cheap flights from Denver to St. Louis

From the great flight deals with prices currently ranging from AU$366 to AU$474, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Denver to St. Louis around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to St. Louis is normally in December.

Reasons to book your flight from Denver to St. Louis with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Denver to St. Louis across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to St. Louis right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Frequently asked questions

How much is a flight from Denver Intl. Airport (DEN) to Lambert-St. Louis Intl. Airport (STL)?
Round-trip flights from Denver Intl. Airport (DEN) to STL start from AU$366. This price is based on fares available within the last 7 days on Expedia for flights departing within the next year — book ASAP so you don’t miss out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from DEN to Lambert-St. Louis Intl. Airport (STL)?
Most flights can be cancelled online, but whether you are charged a fee depends on your airline. If you do have to cancel your escape, follow the instructions in the Customer Service Portal.
How do I find cheap flights from DIA airport to 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 DIA airport to STL flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from Denver Intl. Airport (DEN) to STL?
With a flight distance of 1 250 kilometres, it’s only a short hop from DEN to STL. It might be a quick one, but it’s still worth bringing something to keep you entertained on board.
Which airlines fly direct from Denver Airport to St. Louis Lambert International Airport?
Many travellers choose to fly with Southwest Airlines (WN) from DIA airport to Lambert-St. Louis Intl. Airport (STL). This popular airline offers 178 flights every month, so you can easily find a flight time that’s right for you. United Airlines (UA) is also worth considering. It offers 121 flights every month. Between these two airlines, you’ll be able to find a good deal from Denver to St. Louis.
Are Denver Airport to Lambert Field flight tickets cheaper when they're purchased at the last minute?
It is possible to get a fantastic last-minute deal from Denver Intl. Airport (DEN) to Lambert Field, but it can also be hit-or-miss. As many airlines advertise prices up to 12 months 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 all the time, so you can be sure you’re always getting the latest offers.
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