Menu

Cheap flights from Colorado (CO) to St Louis (STL)

Know your dates, get live prices in seconds:

From
To
Depart
Return
Any month
Compare vs. Cheapflights |
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime

We work with more than 300 partners to bring you better travel deals

How to find the cheapest flight from
Colorado to St Louis (STL)

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

Find a great deal and save up to 96% by booking at least 31 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Colorado to St Louis within the next two weeks, with the cheapest ticket starting at $374.

What is the cheapest month to fly from Colorado to St Louis?

August is one of the best times of the year to fly to St Louis from Colorado. Prices for August average $266 per person but you can even find prices for as low as $158. The most expensive prices can be found in the month of December. Opting for a August flight can save you 23% on your journey compared to booking in August

Cheap flights from Colorado to St Louis in November, December 2020

The best prices found for Colorado to STL flights for November, December
18 Dec - 31 Dec
$75pp
DEN
Denver Intl
Frontier
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
Frontier
Non-Stop
DEN
Denver Intl
26 Nov - 1 Dec
$77pp
DEN
Denver Intl
Frontier
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
Frontier
Non-Stop
DEN
Denver Intl
25 Nov - 29 Nov
$83pp
DEN
Denver Intl
Frontier
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
Frontier
Non-Stop
DEN
Denver Intl

Colorado to St Louis 2021 flight deals

Cheap flights to St Louis from Colorado found for next year
18 Dec - 31 Dec
$75pp
DEN
Denver Intl
Frontier
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
Frontier
Non-Stop
DEN
Denver Intl
26 Nov - 1 Dec
$77pp
DEN
Denver Intl
Frontier
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
Frontier
Non-Stop
DEN
Denver Intl
25 Nov - 29 Nov
$83pp
DEN
Denver Intl
Frontier
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
Frontier
Non-Stop
DEN
Denver Intl

Non-stop flights to St Louis from Colorado

Save time with Colorado to St Louis direct flight deals
18 Dec - 31 Dec
$75pp
DEN
Denver Intl
Frontier
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
Frontier
Non-Stop
DEN
Denver Intl
4 Dec - 6 Dec
$77pp
DEN
Denver Intl
Frontier
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
Frontier
Non-Stop
DEN
Denver Intl
17 Dec - 31 Dec
$86pp
DEN
Denver Intl
Multiple Airlines
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
Frontier
Non-Stop
DEN
Denver Intl

Last minute flights from Colorado to St Louis

Late deals on round-trip flights to St Louis from Colorado, departing today and this week
4 Dec - 6 Dec
$77pp
DEN
Denver Intl
Frontier
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
Frontier
Non-Stop
DEN
Denver Intl
4 Dec - 6 Dec
$87pp
DEN
Denver Intl
Frontier
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
Frontier
Non-Stop
DEN
Denver Intl
4 Dec - 6 Dec
$91pp
DEN
Denver Intl
Multiple Airlines
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
American Airlines
 
1 STOP
DEN
Denver Intl

One-way flights to St Louis from Colorado

The cheapest one-way flights from Colorado to St Louis
8:25 am - 4:57 pm
American Airlines
1 Stop
7h 32m
DEN - STL
American Airlines
6:49 pm - 9:20 am
Frontier
2 Stops
13h 31m
DEN - STL
Frontier
$87
Gotogate
1:55 am - 7:46 am
United Airlines
1 Stop
4h 51m
DEN - STL
United Airlines
$93
United

Related info for your journey

Useful info, stats and facts about Colorado to St Louis flights.

Flight FAQs

From Colorado to St Louis

Are flight prices decreasing from Colorado to St Louis due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Colorado and St Louis for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Colorado to Lambert-St Louis to control the spread of COVID-19?

New policies can now be found on Southwest and Delta to help keep travelers safe while flying. New policies for travelers booking flights from Colorado to Lambert-St Louis include masks being provided and required on board, daily cleaning and sanitization, use of HEPA filters, pre-flight testing for antibodies and symptoms, and socially distanced seating (for a limited time). Keep in mind that policies will vary by airline.

Which airlines flying from Colorado to Lambert-St Louis have flexible cancellations due to COVID-19?

Frontier, United Airlines, and American Airlines are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from Colorado to St Louis for under $100 on Cheapflights?

Yes, there are multiple flights from Colorado to St Louis for under $100. The cheapest flight booked recently is on Frontier for just $75, but on average you can expect to pay $101.

Are there nonstop flights from Colorado to St Louis for under $100 on Cheapflights?

Cheapflights has at least 20 direct flights from Colorado to St Louis under $100. A good price for a nonstop flight from Colorado to St Louis is less than $177.

Are there last-minute flights available from Colorado to St Louis for under $100?

There are currently 20+ open flights from Colorado to St Louis within the next 7 days for less than $100.

What days are nonstop flights available from Colorado to St Louis?

Nonstop flights are available for this route on the following days: Sunday, Tuesday, Wednesday, Thursday, Friday, Saturday.

How popular is this flight route?

This flight path from Colorado to Lambert-St Louis was viewed by 130 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

What are the most popular airlines that fly from Colorado to St Louis?

Major Airline, American Airlines and Delta are the most popular airlines when flying from Colorado to St Louis.

What are the most popular routes from Colorado to St Louis?

The most popular flight routes from Colorado to St Louis are Denver Intl - Lambert-St Louis, Grand Junction Regnl - Lambert-St Louis and Colorado Springs - Lambert-St Louis.

What are the cheapest Flights from Colorado to St Louis?

Looking at all options, your cheapest flight can be booked for $46. While the most popular route (Denver Intl - Lambert-St Louis) can be booked for $86 on average our data indicates $127 when flying from Colorado to St Louis

What are the most reliable airlines from Colorado to St Louis?

Consider Southwest (93%), SkyWest Airlines (92%) or United Airlines (92%) when booking your flight. These represent the most reliable airlines when flying from Colorado to St Louis.

How long is the flight from Colorado to St Louis?

Airlines like Frontier, United Airlines, and American Airlines fly from Colorado to St Louis in about 2h. The time it takes to get you to your destination can typically vary by up to 2h 32m. Both multi-stop and nonstop flights can be found to your destination and back.

What are the cheapest airlines flying from Colorado to St Louis round-trip?

Flying on Frontier is currently your cheapest option to St Louis, with prices starting at $75. Another option worth looking into is American Airlines, starting at $105 round trip.

What are the cheapest airlines to fly from Colorado to St Louis one-way?

$37 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on United Airlines and American Airlines, with prices starting from $49 and $53, respectively.

Arrival points for flights from Colorado to St Louis

Destination information for St Louis

Things to know before you go. Useful info for your trip from Colorado to St Louis
Flight duration
2h 15m
Average temperature for November in St Louis
57.2 °F
Avg rainfall for November in St Louis
3.4 ″

Airports servicing

Colorado Springs (COS)
Denver (DEN)
Durango (DRO)
Eagle County Rgnl (EGE)
Loveland Northern Colorado (FNL)

Airports servicing St. Louis

Top 5 airlines from Colorado to St Louis

The chart below displays the airlines Cheapflights users traveling from Colorado to St Louis choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.

Airline Cheapest Average Flexibility On-time COVID-19 safety
Frontier
$51 $146 No cancel fee 62%
Delta
$77 $225 No cancel fee N/A
Southwest
$63 $250 No cancel fee 63%
American Airlines
$57 $372 No cancel fee 71%
United Airlines
$85 $411 No cancel fee 69%
Home North America USA Missouri St Louis Cheap flights from Colorado to St Louis