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Cheap flights from St. Louis to Colorado from $38

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Colorado departing on 2/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from St. Louis to Colorado

Cheap round-trip flights

These are some of the best round-trip flight deals from St. Louis to Colorado that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from St. Louis to Colorado.

Cheap last minute flights

Planning a quick getaway from St. Louis to Colorado? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Colorado, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from St. Louis to Colorado

Find recent round-trip train or bus tickets from St. Louis to Colorado.

All round-trip flight deals from St. Louis to Colorado

The cheapest plane tickets from St. Louis to Colorado found on KAYAK recently.
6:51 pm - 8:22 pmSTL-DEN
2h 31mnonstop
6:00 am - 9:06 amDEN-STL
2h 06mnonstop
$78Frontier
Find Deal
Sat, Apr 5 - Mon, Apr 7
7:09 pm - 8:37 pmSTL-DEN
2h 28mnonstop
6:00 am - 9:16 amDEN-STL
2h 16mnonstop
$82Frontier
Find Deal
Sat, Feb 1 - Wed, Feb 5
10:25 pm - 11:55 pmSTL-DEN
2h 30mnonstop
7:20 pm - 10:20 pmDEN-STL
2h 00mnonstop
$177Southwest
Find Deal
Thu, Feb 27 - Tue, Mar 4
1:39 pm - 3:10 pmSTL-DEN
2h 31mnonstop
7:47 am - 2:36 pmDEN-STL
5h 49m1 stop
$187United Airlines
Find Deal
Thu, Feb 27 - Tue, Mar 4
8:15 pm - 9:45 pmSTL-DEN
2h 30mnonstop
10:30 pm - 1:30 amDEN-STL
2h 00mnonstop
$197Southwest
Find Deal
Thu, Feb 20 - Fri, Feb 21
6:43 am - 1:56 pmSTL-DEN
8h 13m1 stop
2:21 pm - 10:17 pmDEN-STL
6h 56m1 stop
$207Delta
Find Deal
Tue, Feb 25 - Thu, Mar 6
7:40 am - 3:16 pmSTL-DEN
8h 36m1 stop
6:05 pm - 12:28 amDEN-STL
5h 23m1 stop
$217Delta
Find Deal
Thu, Apr 3 - Mon, Apr 7
5:45 am - 10:36 amSTL-DEN
5h 51m1 stop
8:44 am - 4:33 pmDEN-STL
6h 49m1 stop
$228American Airlines
Find Deal
Wed, Mar 5 - Sat, Mar 8
1:39 pm - 5:49 pmSTL-COS
5h 10m1 stop
3:35 pm - 9:34 pmCOS-STL
4h 59m1 stop
$257United Airlines
Find Deal
Wed, Mar 5 - Sat, Mar 8
7:23 am - 2:49 pmSTL-GJT
8h 26m1 stop
5:00 am - 4:41 pmGJT-STL
10h 41m2 stops
$314American Airlines
Find Deal
Wed, Mar 19 - Tue, Mar 25
7:09 pm - 8:37 pmSTL-DEN
2h 28mnonstop
$38Frontier
Find Deal
Fri, Feb 21
6:51 pm - 8:22 pmSTL-DEN
2h 31mnonstop
$43Frontier
Find Deal
Wed, Apr 2
1:43 pm - 3:13 pmSTL-DEN
2h 30mnonstop
$99United Airlines
Find Deal
Tue, Apr 22
5:20 am - 8:50 amSTL-DEN
4h 30m1 stop
$104Southwest
Find Deal
Tue, May 20
7:40 am - 1:03 pmSTL-DEN
6h 23m1 stop
$109Delta
Find Deal
Wed, Mar 12
11:05 am - 4:45 pmSTL-DEN
6h 40m2 stops
$114Southwest
Find Deal
Tue, Mar 4
5:03 am - 9:41 amSTL-COS
5h 38m1 stop
$129American Airlines
Find Deal
Wed, Feb 12
5:30 pm - 10:46 pmSTL-DEN
6h 16m1 stop
$140Delta
Find Deal
Thu, Feb 20
1:39 pm - 3:10 pmSTL-DEN
2h 31mnonstop
$149United Airlines
Find Deal
Thu, Feb 20
5:03 am - 12:09 pmSTL-COS
8h 06m1 stop
$194American Airlines
Find Deal
Tue, Feb 11
7:09 pm - 8:37 pmSTL-DEN
2h 28mnonstop
6:00 am - 9:16 amDEN-STL
2h 16mnonstop
$171Frontier
Find Deal
Sat, Jan 25 - Sat, Feb 8
5:05 pm - 8:44 amSTL-DEN
16h 39m1 stop
6:00 am - 9:16 amDEN-STL
2h 16mnonstop
$187Frontier
Find Deal
Sat, Jan 25 - Sat, Feb 8
7:09 pm - 8:37 pmSTL-DEN
2h 28mnonstop
12:13 am - 11:31 pmDEN-STL
22h 18m1 stop
$218Frontier
Find Deal
Sat, Jan 25 - Fri, Feb 7
5:03 am - 12:37 pmSTL-ASE
8h 34m1 stop
10:34 am - 7:30 pmASE-STL
7h 56m1 stop
$459American Airlines
Find Deal
Sat, Jan 25 - Wed, Jan 29
7:15 am - 3:03 pmSTL-DRO
8h 48m1 stop
6:00 am - 1:42 pmDRO-STL
6h 42m1 stop
$463American Airlines
Find Deal
Fri, Jan 24 - Mon, Feb 3
6:30 am - 5:48 pmSTL-DEN
12h 18m2 stops
7:45 am - 2:14 pmDEN-STL
5h 29m1 stop
$527United Airlines
Find Deal
Sat, Jan 25 - Sat, Feb 8
11:30 am - 9:32 pmSTL-ASE
11h 02m2 stops
3:22 pm - 8:43 pmASE-STL
4h 21m1 stop
$534United Airlines
Find Deal
Sat, Jan 25 - Wed, Jan 29
8:35 pm - 10:05 pmSTL-DEN
2h 30mnonstop
7:10 am - 10:20 amDEN-STL
2h 10mnonstop
$827Southwest
Find Deal
Thu, Jan 23 - Sat, Jan 25
6:00 am - 11:57 amSTL-ASE
6h 57m1 stop
1:42 pm - 11:37 pmASE-STL
8h 55m1 stop
$829Delta
Find Deal
Sat, Jan 25 - Wed, Jan 29
11:00 am - 2:00 pmSTL-DEN
4h 00m1 stop
3:55 pm - 6:55 pmDEN-STL
2h 00mnonstop
$833Southwest
Find Deal
Thu, Jan 23 - Sun, Jan 26
7:04 pm - 8:32 pmSTL-DEN
2h 28mnonstop
6:00 am - 9:16 amDEN-STL
2h 16mnonstop
$52Frontier
Find Deal
Wed, Feb 19 - Wed, Feb 26
7:04 pm - 8:32 pmSTL-DEN
2h 28mnonstop
6:00 am - 9:16 amDEN-STL
2h 16mnonstop
$53Frontier
Find Deal
Sat, Feb 22 - Wed, Feb 26
7:09 pm - 8:37 pmSTL-DEN
2h 28mnonstop
6:00 am - 9:16 amDEN-STL
2h 16mnonstop
$57Frontier
Find Deal
Sat, Feb 8 - Wed, Feb 12
6:51 pm - 8:22 pmSTL-DEN
2h 31mnonstop
6:00 am - 9:06 amDEN-STL
2h 06mnonstop
$58Frontier
Find Deal
Wed, Apr 9 - Wed, Apr 16
4:39 pm - 6:15 pmSTL-DEN
2h 36mnonstop
9:40 am - 12:43 pmDEN-STL
2h 03mnonstop
$177United Airlines
Find Deal
Tue, Feb 18 - Tue, Feb 25
8:15 pm - 9:45 pmSTL-DEN
2h 30mnonstop
10:30 pm - 1:30 amDEN-STL
2h 00mnonstop
$197Southwest
Find Deal
Thu, Feb 20 - Thu, Feb 27
1:45 pm - 3:10 pmSTL-DEN
2h 25mnonstop
9:05 am - 12:05 pmDEN-STL
2h 00mnonstop
$217Southwest
Find Deal
Sat, Feb 15 - Tue, Feb 18
7:30 pm - 9:00 pmSTL-DEN
2h 30mnonstop
6:45 pm - 9:45 pmDEN-STL
2h 00mnonstop
$227Southwest
Find Deal
Thu, Feb 13 - Thu, Feb 20
1:43 pm - 3:13 pmSTL-DEN
2h 30mnonstop
1:25 pm - 4:31 pmDEN-STL
2h 06mnonstop
$257United Airlines
Find Deal
Tue, Apr 1 - Wed, Apr 9
1:43 pm - 3:13 pmSTL-DEN
2h 30mnonstop
6:44 pm - 9:50 pmDEN-STL
2h 06mnonstop
$277United Airlines
Find Deal
Thu, Apr 10 - Wed, Apr 16

Frontier flights from St. Louis to Colorado

Our best Frontier deals on St. Louis to Colorado flight tickets
Frontier
Apr 5
STL6:51 pmLambert-St Louis
2h 31m
DEN8:22 pmDenver Intl
Apr 7
DEN6:00 amDenver Intl
2h 06m
STL9:06 amLambert-St Louis
Frontier
Feb 1
STL7:09 pmLambert-St Louis
2h 28m
DEN8:37 pmDenver Intl
Feb 5
DEN6:00 amDenver Intl
2h 16m
STL9:16 amLambert-St Louis
Frontier
Feb 1
STL7:09 pmLambert-St Louis
2h 28m
DEN8:37 pmDenver Intl
Feb 5
DEN6:00 amDenver Intl
2h 16m
STL9:16 amLambert-St Louis

Southwest flights from St. Louis to Colorado

Our best Southwest deals on St. Louis to Colorado flight tickets
Southwest
Feb 27
STL10:25 pmLambert-St Louis
2h 30m
DEN11:55 pmDenver Intl
Mar 4
DEN7:20 pmDenver Intl
2h 00m
STL10:20 pmLambert-St Louis
Southwest
Feb 20
STL8:15 pmLambert-St Louis
2h 30m
DEN9:45 pmDenver Intl
Feb 21
DEN10:30 pmDenver Intl
2h 00m
STL1:30 amLambert-St Louis
Southwest
Mar 15
STL1:45 pmLambert-St Louis
4h 05m
1 stop
DEN4:50 pmDenver Intl
Mar 19
DEN7:25 pmDenver Intl
2h 00m
STL10:25 pmLambert-St Louis

See travel insights to Colorado from

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

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 Colorado?

The month of April is, on average, the cheapest month to fly to Colorado from St. Louis, with most prices found around $135. The month of May is another great option to travel to Colorado, with average flight prices from St. Louis averaging around $146.

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

The cheapest day to depart from St. Louis to Colorado is on a Friday when prices can be found for as low as $278. On the other hand, Sunday is the most expensive day to depart from St. Louis because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $372.

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

The cheapest time of day to fly to Colorado is in the evening when flights can be purchased for as low as $157. In the morning is when there is more demand to fly to Colorado, so prices are often more expensive at around $492 per ticket.

What is the cheapest Lambert-St Louis to Colorado flight route?

Fly from Lambert-St Louis to Denver Intl for the best Lambert-St Louis - Colorado flight prices

How far in advance should I book a flight to Colorado?

You are more likely to see cheaper flights to Colorado from St. Louis when booking 4 weeks ahead of your departure date. In general, you can expect to find flights to Colorado for around $168 when searching 4 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colorado from St. Louis for as low as $128 on momondo.

What cabin class options are available on Lambert-St Louis to Colorado flights?

There are 4 cabin classes available to choose from on Lambert-St Louis to Colorado flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap St. Louis to Colorado flight deals and tips

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

Best Price Found

$38

Fastest flight time

2h 20m

Direct flights

Every day

Airports in Colorado

3 airports
The best one-way flight to Colorado from St. Louis in the past 72 hours is $38. The best round-trip flight deal from St. Louis to Colorado found on momondo in the last 72 hours is $78.
The fastest flight from St. Louis to Colorado takes 2h 20m
Direct flights go from St. Louis to Colorado every day.
There are 3 airports near Colorado: Vail Eagle County (EGE), Hayden Yampa Valley (HDN), Denver Intl (DEN)

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

    Prices for flights from Lambert-St Louis Airport to Colorado refresh daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Colorado.

  • What documentation or ID do you need to fly to Colorado?

    The travel and health documents you'll need for your trip to Colorado may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Colorado. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from St. Louis to Colorado?


Best airlines flying from St. Louis to Colorado

Compare and see reviews for airlines that fly from St. Louis to Colorado with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $46Free CancellationRating
6.0
3,442 reviews
Search Frontier flights
DeltaPriceFrom $131Free CancellationRating
8.0
8,514 reviews
Search Delta flights
United AirlinesPriceFrom $150Free CancellationRating
7.4
8,975 reviews
Search United Airlines flights
SouthwestPriceFrom $171Free CancellationRating
8.1
4,654 reviews
Search Southwest flights
American AirlinesPriceFrom $192Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Colorado. Millions of users trust and use momondo every year so you are in good hands.

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

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

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Colorado from St. Louis.

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

Yes. momondo can track prices for St. Louis to Colorado flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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