RM474 Cheap Flights from St. Louis (STL) to Denver (DEN)

    Plan, book, fly with confidence
  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards
    Sign in

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

Prices were available within the past 7 days and start at RM474 for one-way flights and RM897 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 25 May - Tue, 28 May
STL
St. Louis
DEN
Denver
RM897 Return, found 6 days ago
RM897
Return
found 6 days ago
Select Delta flight, departing Sat, 25 May from St. Louis to Denver, returning Tue, 28 May, priced at RM897 found 6 days ago
United
Sat, 25 May - Tue, 28 May
STL
St. Louis
DEN
Denver
RM996 Return, found 6 days ago
RM996
Return
found 6 days ago
Select United flight, departing Sat, 25 May from St. Louis to Denver, returning Tue, 28 May, priced at RM996 found 6 days ago
Delta
Sat, 25 May - Tue, 28 May
STL
St. Louis
DEN
Denver
RM1,062 Return, found 6 days ago
RM1,062
Return
found 6 days ago
Select Delta flight, departing Sat, 25 May from St. Louis to Denver, returning Tue, 28 May, priced at RM1,062 found 6 days ago
Delta
Sat, 25 May - Mon, 27 May
STL
St. Louis
DEN
Denver
RM1,112 Return, found 6 days ago
RM1,112
Return
found 6 days ago
Select Delta flight, departing Sat, 25 May from St. Louis to Denver, returning Mon, 27 May, priced at RM1,112 found 6 days ago
United
Sat, 25 May - Tue, 28 May
STL
St. Louis
DEN
Denver
RM1,135 Return, found 6 days ago
RM1,135
Return
found 6 days ago
Select United flight, departing Sat, 25 May from St. Louis to Denver, returning Tue, 28 May, priced at RM1,135 found 6 days ago
United
Sat, 25 May - Tue, 28 May
STL
St. Louis
DEN
Denver
RM1,160 Return, found 6 days ago
RM1,160
Return
found 6 days ago
Select United flight, departing Sat, 25 May from St. Louis to Denver, returning Tue, 28 May, priced at RM1,160 found 6 days ago
Delta
Sat, 25 May - Tue, 28 May
STL
St. Louis
DEN
Denver
RM1,185 Return, found 6 days ago
RM1,185
Return
found 6 days ago
Select Delta flight, departing Sat, 25 May from St. Louis to Denver, returning Tue, 28 May, priced at RM1,185 found 6 days ago
United
Sat, 25 May - Mon, 27 May
STL
St. Louis
DEN
Denver
RM1,211 Return, found 6 days ago
RM1,211
Return
found 6 days ago
Select United flight, departing Sat, 25 May from St. Louis to Denver, returning Mon, 27 May, priced at RM1,211 found 6 days ago
United
Sat, 25 May - Tue, 28 May
STL
St. Louis
DEN
Denver
RM1,258 Return, found 6 days ago
RM1,258
Return
found 6 days ago
Select United flight, departing Sat, 25 May from St. Louis to Denver, returning Tue, 28 May, priced at RM1,258 found 6 days ago
Delta
Sat, 25 May - Mon, 27 May
STL
St. Louis
DEN
Denver
RM1,277 Return, found 6 days ago
RM1,277
Return
found 6 days ago
Select Delta flight, departing Sat, 25 May from St. Louis to Denver, returning Mon, 27 May, priced at RM1,277 found 6 days ago
St. Louis to Denver route information
Origin airport
Lambert-St. Louis Intl.
Destination airport
Denver Intl.
Return price
RM897
Distance
1228 km

Perfect flights from St. Louis to Denver

Your Journey from St. Louis to Denver

Start your unforgettable journey with Expedia. Our broad selection of flights from St. Louis to Denver caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including Delta, United, American Airlines. Our selection of flights from Lambert-St. Louis Intl. to Denver Intl. caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with St. Louis to Denver Flights

Experience the joy of finding cheap flights from Lambert-St. Louis Intl. to Denver Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from RM474 and roundtrip prices from RM897*.
 

Pre-Flight Essentials

Ensure a smooth journey from St. Louis to Denver with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Denver

Picture yourself stepping off the plane in Denver and immersing yourself in the unique atmosphere of Denver. From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your St. Louis to Denver Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from St. Louis to Denver.
 

Beyond the Flight – Exploring Denver

With Expedia, your adventure extends beyond the flight. Explore Denver at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from St. Louis to Denver with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from St. Louis to Denver with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

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 RM897. 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.
*Available to Expedia members.