Cheap flights from St. Louis to Denver from $299

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Denver departing on 1/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from St. Louis to Denver

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
8:45 am - 2:28 pm
STL
-
EGE
6h 43m1 stop
United Airlines Logo
1:42 pm - 8:58 pm
EGE
-
STL
6h 16m1 stop
$299United Airlines
Sat, Jan 24 - Wed, Jan 28
United Airlines Logo
11:20 am - 6:21 pm
STL
-
EGE
8h 01m1 stop
United Airlines Logo
1:42 pm - 10:58 pm
EGE
-
STL
8h 16m2 stops
$304United Airlines
Sat, Jan 24 - Wed, Jan 28
United Airlines Logo
9:57 am - 8:49 pm
STL
-
EGE
11h 52m2 stops
United Airlines Logo
1:42 pm - 10:58 pm
EGE
-
STL
8h 16m2 stops
$309United Airlines
Sat, Jan 24 - Wed, Jan 28
United Airlines Logo
2:45 pm - 8:49 pm
STL
-
EGE
7h 04m1 stop
United Airlines Logo
1:42 pm - 8:58 pm
EGE
-
STL
6h 16m1 stop
$310United Airlines
Fri, Jan 23 - Sun, Jan 25
United Airlines Logo
9:57 am - 8:49 pm
STL
-
EGE
11h 52m2 stops
United Airlines Logo
1:42 pm - 8:58 pm
EGE
-
STL
6h 16m1 stop
$315United Airlines
Fri, Jan 23 - Sun, Jan 25
United Airlines Logo
1:15 pm - 6:21 pm
STL
-
EGE
6h 06m1 stop
United Airlines Logo
3:31 pm - 8:58 pm
EGE
-
STL
4h 27m1 stop
$354United Airlines
Sat, Jan 24 - Wed, Jan 28
United Airlines Logo
8:30 am - 8:49 pm
STL
-
EGE
13h 19m2 stops
United Airlines Logo
1:42 pm - 8:58 pm
EGE
-
STL
6h 16m1 stop
$359United Airlines
Sat, Jan 24 - Wed, Jan 28
United Airlines Logo
8:05 am - 6:34 pm
STL
-
EGE
11h 29m2 stops
United Airlines Logo
1:42 pm - 10:58 pm
EGE
-
STL
8h 16m2 stops
$364United Airlines
Sat, Jan 24 - Wed, Jan 28
United Airlines Logo
8:45 am - 12:38 pm
STL
-
EGE
4h 53m1 stop
United Airlines Logo
1:42 pm - 8:58 pm
EGE
-
STL
6h 16m1 stop
$399United Airlines
Thu, Jan 22 - Sun, Jan 25
United Airlines Logo
11:20 am - 8:49 pm
STL
-
EGE
10h 29m2 stops
United Airlines Logo
1:42 pm - 8:58 pm
EGE
-
STL
6h 16m1 stop
$404United Airlines
Thu, Jan 22 - Sun, Jan 25

United Airlines flights from St. Louis to Vail

Our best United Airlines deals on St. Louis to Vail flight tickets
United Airlines
Jan 24
STL8:45 amLambert-St Louis
6h 43m
1 stop
EGE2:28 pmVail Eagle County
Jan 28
EGE1:42 pmVail Eagle County
6h 16m
1 stop
STL8:58 pmLambert-St Louis
United Airlines
Jan 24
STL11:20 amLambert-St Louis
8h 01m
1 stop
EGE6:21 pmVail Eagle County
Jan 28
EGE1:42 pmVail Eagle County
8h 16m
2 stops
STL10:58 pmLambert-St Louis
United Airlines
Jan 24
STL9:57 amLambert-St Louis
11h 52m
2 stops
EGE8:49 pmVail Eagle County
Jan 28
EGE1:42 pmVail Eagle County
8h 16m
2 stops
STL10:58 pmLambert-St Louis

American Airlines flights from St. Louis to Vail

Our best American Airlines deals on St. Louis to Vail flight tickets
American Airlines
Apr 2
STL5:12 amLambert-St Louis
5h 38m
1 stop
EGE9:50 amVail Eagle County
Apr 6
EGE4:17 pmVail Eagle County
6h 42m
1 stop
STL11:59 pmLambert-St Louis
American Airlines
Apr 2
STL5:12 amLambert-St Louis
11h 35m
2 stops
EGE3:47 pmVail Eagle County
Apr 6
EGE4:17 pmVail Eagle County
6h 42m
1 stop
STL11:59 pmLambert-St Louis
American Airlines
Dec 26
STL8:00 amLambert-St Louis
8h 16m
1 stop
EGE3:16 pmVail Eagle County
Dec 31
EGE7:46 amVail Eagle County
6h 14m
1 stop
STL3:00 pmLambert-St Louis

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Vail that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 21, 2025.
Use the filters below to find and compare flights from St. Louis to Vail that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisVail

STL - EGE

STLEGE

Lambert-St Louis

Sat 1/24

8:45 am-2:28 pm

1 stop6h 43m

Vail Eagle County

Wed 1/28

1:42 pm-8:58 pm

1 stop6h 16m

$299

St. LouisVail

STL - EGE

STLEGE

Lambert-St Louis

Sat 1/24

11:20 am-6:21 pm

1 stop8h 01m

Vail Eagle County

Wed 1/28

1:42 pm-10:58 pm

2 stops8h 16m

$304

St. LouisVail

STL - EGE

STLEGE

Lambert-St Louis

Sat 1/24

9:57 am-8:49 pm

2 stops11h 52m

Vail Eagle County

Wed 1/28

1:42 pm-10:58 pm

2 stops8h 16m

$309

St. LouisVail

STL - EGE

STLEGE

Lambert-St Louis

Fri 1/23

2:45 pm-8:49 pm

1 stop7h 04m

Vail Eagle County

Sun 1/25

1:42 pm-8:58 pm

1 stop6h 16m

$310

St. LouisVail

STL - EGE

STLEGE

Lambert-St Louis

Fri 1/23

9:57 am-8:49 pm

2 stops11h 52m

Vail Eagle County

Sun 1/25

1:42 pm-8:58 pm

1 stop6h 16m

$315

St. LouisVail

STL - EGE

STLEGE

Lambert-St Louis

Sat 1/24

1:15 pm-6:21 pm

1 stop6h 06m

Vail Eagle County

Wed 1/28

3:31 pm-8:58 pm

1 stop4h 27m

$354

St. LouisVail

STL - EGE

STLEGE

Lambert-St Louis

Sat 1/24

8:30 am-8:49 pm

2 stops13h 19m

Vail Eagle County

Wed 1/28

1:42 pm-8:58 pm

1 stop6h 16m

$359

St. LouisVail

STL - EGE

STLEGE

Lambert-St Louis

Sat 1/24

8:05 am-6:34 pm

2 stops11h 29m

Vail Eagle County

Wed 1/28

1:42 pm-10:58 pm

2 stops8h 16m

$364

St. LouisVail

STL - EGE

STLEGE

Lambert-St Louis

Thu 1/22

8:45 am-12:38 pm

1 stop4h 53m

Vail Eagle County

Sun 1/25

1:42 pm-8:58 pm

1 stop6h 16m

$399

St. LouisVail

STL - EGE

STLEGE

Lambert-St Louis

Thu 1/22

11:20 am-8:49 pm

2 stops10h 29m

Vail Eagle County

Sun 1/25

1:42 pm-8:58 pm

1 stop6h 16m

$404

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

See travel insights to Denver from

How to get the cheapest flight ticket from St. Louis to Vail

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Vail?

The cheapest month to fly to Vail from St. Louis is in November. Flight prices, which tend to average around $271, are often lower during this time because this is during the off-season. If you aren’t able to travel to Vail during the month of November, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $302.

What is the cheapest day to depart on your flight to Vail?

Our data shows that Tuesday is the least expensive day to fly to Vail. Tickets to fly out on this day can be as low as $451. Flights from St. Louis to Vail on a Wednesday will generally be more expensive and average around $642. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Vail?

Flying to Vail from St. Louis in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $511 when looking at flights departing in the afternoon. Try not to purchase tickets at noon because they tend to be around $573. Of course, these prices can vary depending on the time of year and what airport you fly to.

When to book flights from St. Louis to Vail

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Vail according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Vail (STL to EGE) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Vail

Fastest flight time

4h 21m

Direct flights

None
The fastest flight from St. Louis to Vail takes 4h 21m
There are no direct flights from St. Louis to Vail. There are no popular flight routes from St. Louis to Vail.
  • How far is Lambert-St Louis to Vail Eagle County by plane?

    Lambert-St Louis and Vail Eagle County are 868.0 mi apart from one another. By plane, this route typically takes 4h 21m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Vail Eagle County Airport?

    Prices for flights from Lambert-St Louis Airport to Vail Eagle County Airport were last updated today.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Vail Eagle County Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Vail Eagle County Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Vail Eagle County Airport.

  • What documentation or ID do you need to fly to Vail Eagle County Airport?

    The necessary travel and health documents for your Vail Eagle County Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from St. Louis to Vail?

Best airlines flying from St. Louis to Vail

Compare and see reviews for airlines that fly from St. Louis to Vail with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $228Free CancellationRating
7.2
11,051 reviews
Search American Airlines flights
United AirlinesPriceFrom $298Free CancellationRating
7.4
9,102 reviews
Search United Airlines flights

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Glenwood Springs
Beaver Creek
Avon
Rifle
Eagle

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Vail?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Vail from St. Louis.

Can I find flights from St. Louis to Vail with flexible booking policies on momondo?

All flight searches from St. Louis to Vail on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from St. Louis to Vail?

momondo helps you find the best flight between St. Louis and Vail by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from St. Louis to Vail right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of St. Louis to Vail flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Vail trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 1/20
Tue 1/27

Find better results for your trip to the United States