₹8,433 Cheap Flights from St. Louis (STL) to Denver (DEN)

View ₹8,433 flight on Sat, 23 Aug 2025Opens in a new window

Popular airlines from Lambert-St. Louis International Airport (STL) to Denver International Airport (DEN)

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

Prices were available within the past 7 days and start at ₹8,433 for one-way flights and ₹16,865 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 23 Aug - Tue, 26 Aug
STL
St. Louis
DEN
Denver
₹16,865 Return, found 3 days ago
₹16,865
Return
found 3 days ago
Select Delta flight, departing Sat, 23 Aug from St. Louis to Denver, returning Tue, 26 Aug, priced at ₹16,865 found 3 days ago
Delta
Fri, 15 Aug - Tue, 19 Aug
STL
St. Louis
DEN
Denver
₹18,155 Return, found 2 days ago
₹18,155
Return
found 2 days ago
Select Delta flight, departing Fri, 15 Aug from St. Louis to Denver, returning Tue, 19 Aug, priced at ₹18,155 found 2 days ago
Delta
Sat, 23 Aug - Tue, 26 Aug
STL
St. Louis
DEN
Denver
₹18,176 Return, found 3 days ago
₹18,176
Return
found 3 days ago
Select Delta flight, departing Sat, 23 Aug from St. Louis to Denver, returning Tue, 26 Aug, priced at ₹18,176 found 3 days ago
Delta
Sat, 23 Aug - Tue, 26 Aug
STL
St. Louis
DEN
Denver
₹19,010 Return, found 3 days ago
₹19,010
Return
found 3 days ago
Select Delta flight, departing Sat, 23 Aug from St. Louis to Denver, returning Tue, 26 Aug, priced at ₹19,010 found 3 days ago
Delta
Fri, 15 Aug - Tue, 19 Aug
STL
St. Louis
DEN
Denver
₹19,182 Return, found 2 days ago
₹19,182
Return
found 2 days ago
Select Delta flight, departing Fri, 15 Aug from St. Louis to Denver, returning Tue, 19 Aug, priced at ₹19,182 found 2 days ago
Delta
Fri, 15 Aug - Tue, 19 Aug
STL
St. Louis
DEN
Denver
₹19,466 Return, found 2 days ago
₹19,466
Return
found 2 days ago
Select Delta flight, departing Fri, 15 Aug from St. Louis to Denver, returning Tue, 19 Aug, priced at ₹19,466 found 2 days ago
United
Sat, 23 Aug - Tue, 26 Aug
STL
St. Louis
DEN
Denver
₹19,486 Return, found 3 days ago
₹19,486
Return
found 3 days ago
Select United flight, departing Sat, 23 Aug from St. Louis to Denver, returning Tue, 26 Aug, priced at ₹19,486 found 3 days ago
United
Fri, 15 Aug - Tue, 19 Aug
STL
St. Louis
DEN
Denver
₹19,896 Return, found 2 days ago
₹19,896
Return
found 2 days ago
Select United flight, departing Fri, 15 Aug from St. Louis to Denver, returning Tue, 19 Aug, priced at ₹19,896 found 2 days ago
Delta
Fri, 15 Aug - Tue, 19 Aug
STL
St. Louis
DEN
Denver
₹20,300 Return, found 2 days ago
₹20,300
Return
found 2 days ago
Select Delta flight, departing Fri, 15 Aug from St. Louis to Denver, returning Tue, 19 Aug, priced at ₹20,300 found 2 days ago
American Airlines
Sat, 23 Aug - Tue, 26 Aug
STL
St. Louis
DEN
Denver
₹21,154 Return, found 3 days ago
₹21,154
Return
found 3 days ago
Select American Airlines flight, departing Sat, 23 Aug from St. Louis to Denver, returning Tue, 26 Aug, priced at ₹21,154 found 3 days ago

Find the cheapest month to fly from St. Louis (STL) to Denver (DEN)

September is typically the cheapest month to fly

From ₹4,114 - ₹11,323 per traveller.

Graph displaying average flight prices per month

Flight from St. Louis to Denver route information
Origin airport
Lambert-St. Louis Intl.
Destination airport
Denver Intl.
Airlines serving
American Airlines, United
Return price
₹16,865
Distance
1228 km
Average flight time
1 hour 17 mins

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 ₹16,865. 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.

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