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Cheap flights from St. Louis to Colorado from $48

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 5/17. 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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0 bags

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Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from St. Louis to Colorado.
Frontier Logo
8:15 pm - 9:48 pmSTL-DEN
2h 33mnonstop
Frontier Logo
6:50 am - 9:59 amDEN-STL
2h 09mnonstop
$98Frontier
Find Deal
Sat, May 17 - Wed, May 21
Frontier Logo
8:15 pm - 9:48 pmSTL-DEN
2h 33mnonstop
Frontier Logo
6:50 am - 9:59 amDEN-STL
2h 09mnonstop
$116Frontier
Find Deal
Wed, May 14 - Wed, May 21
Delta Logo
6:14 pm - 12:12 amSTL-DEN
6h 58m1 stop
Delta Logo
12:59 am - 8:56 amDEN-STL
6h 57m1 stop
$207Delta
Find Deal
Sat, May 17 - Fri, May 23
Southwest Logo
6:15 pm - 7:45 pmSTL-DEN
2h 30mnonstop
Southwest Logo
7:15 am - 10:20 amDEN-STL
2h 05mnonstop
$210Southwest
Find Deal
Sat, May 24 - Tue, May 27
Delta Logo
7:30 am - 2:45 pmSTL-DEN
8h 15m1 stop
Delta Logo
12:59 am - 8:56 amDEN-STL
6h 57m1 stop
$217Delta
Find Deal
Sat, May 31 - Fri, Jun 6
United Airlines Logo
9:10 am - 10:34 amSTL-DEN
2h 24mnonstop
United Airlines Logo
1:25 pm - 4:31 pmDEN-STL
2h 06mnonstop
$223United Airlines
Find Deal
Tue, Jun 10 - Wed, Jun 11
Southwest Logo
5:30 am - 6:50 amSTL-DEN
2h 20mnonstop
Southwest Logo
7:55 am - 11:00 amDEN-STL
2h 05mnonstop
$224Southwest
Find Deal
Wed, Jul 23 - Wed, Jul 30
United Airlines Logo
1:41 pm - 5:54 pmSTL-COS
5h 13m1 stop
United Airlines Logo
6:39 pm - 11:52 pmCOS-STL
4h 13m1 stop
$243United Airlines
Find Deal
Wed, May 14 - Wed, May 21
American Airlines Logo
5:19 am - 9:42 amSTL-COS
5h 23m1 stop
American Airlines Logo
10:34 am - 6:21 pmCOS-STL
6h 47m1 stop
$271American Airlines
Find Deal
Sat, May 10 - Sat, May 17
American Airlines Logo
7:00 am - 11:58 amSTL-GJT
5h 58m1 stop
American Airlines Logo
4:39 pm - 10:45 pmGJT-STL
5h 06m1 stop
$311American Airlines
Find Deal
Wed, May 7 - Fri, May 9

Frontier flights from St. Louis to Colorado

Our best Frontier deals on St. Louis to Colorado flight tickets
Frontier
May 17
STL8:15 pmLambert-St Louis
2h 33m
DEN9:48 pmDenver Intl
May 21
DEN6:50 amDenver Intl
2h 09m
STL9:59 amLambert-St Louis
Frontier
May 14
STL8:15 pmLambert-St Louis
2h 33m
DEN9:48 pmDenver Intl
May 21
DEN6:50 amDenver Intl
2h 09m
STL9:59 amLambert-St Louis
Frontier
May 14
STL8:15 pmLambert-St Louis
2h 33m
DEN9:48 pmDenver Intl
May 17
DEN6:50 amDenver Intl
2h 09m
STL9:59 amLambert-St Louis

Southwest flights from St. Louis to Colorado

Our best Southwest deals on St. Louis to Colorado flight tickets
Southwest
May 24
STL6:15 pmLambert-St Louis
2h 30m
DEN7:45 pmDenver Intl
May 27
DEN7:15 amDenver Intl
2h 05m
STL10:20 amLambert-St Louis
Southwest
Jul 23
STL5:30 amLambert-St Louis
2h 20m
DEN6:50 amDenver Intl
Jul 30
DEN7:55 amDenver Intl
2h 05m
STL11:00 amLambert-St Louis
Southwest
May 25
STL11:05 amLambert-St Louis
4h 20m
1 stop
DEN2:25 pmDenver Intl
May 27
DEN7:15 pmDenver Intl
2h 10m
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 August is, on average, the cheapest month to fly to Colorado from St. Louis, with most prices found around $153. The month of May is another great option to travel to Colorado, with average flight prices from St. Louis averaging around $158.

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 $288. 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 $401.

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 $153. In the morning is when there is more demand to fly to Colorado, so prices are often more expensive at around $491 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 $191 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 $136 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

$48

Fastest flight time

2h 15m

Direct flights

Every day

Airports in Colorado

1 airport
The best one-way flight to Colorado from St. Louis in the past 72 hours is $48. The best round-trip flight deal from St. Louis to Colorado found on momondo in the last 72 hours is $98.
The fastest flight from St. Louis to Colorado takes 2h 15m
Direct flights go from St. Louis to Colorado every day.
There is 1 airport near Colorado: 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
3,281 reviews
Search Frontier flights
DeltaPriceFrom $128Free CancellationRating
8.0
7,916 reviews
Search Delta flights
United AirlinesPriceFrom $153Free CancellationRating
7.4
8,667 reviews
Search United Airlines flights
SouthwestPriceFrom $178Free CancellationRating
8.0
4,280 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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