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  1. Flights
  2. United States
  3. Denver, CO
  4. St Louis, MO - Denver, CO

Cheap Flights from St Louis, MO (STL) to Denver, CO (DEN)

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Discover the cheapest flights from St Louis, MO to Denver, CO
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Tue, Mar 31 - Fri, Apr 3
Frontier Airlines
Frontier AirlinesDirect
STL - DEN
Frontier Airlines
Frontier AirlinesDirect
DEN - STL
-15 %
34$
29$
Prime price per passenger
Sun, Apr 26 - Tue, Apr 28
Frontier Airlines
Frontier AirlinesDirect
STL - DEN
Frontier Airlines
Frontier AirlinesDirect
DEN - STL
56$
55$
Prime price per passenger
Sun, May 10 - Tue, May 12
Frontier Airlines
Frontier AirlinesDirect
STL - DEN
Frontier Airlines
Frontier AirlinesDirect
DEN - STL
57$
56$
Prime price per passenger
Thu, Apr 2 - Fri, Apr 3
Frontier Airlines
Frontier AirlinesDirect
STL - DEN
Frontier Airlines
Frontier AirlinesDirect
DEN - STL
63$
59$
Prime price per passenger
Sun, May 24 - Mon, May 25
Frontier Airlines
Frontier AirlinesDirect
STL - DEN
Frontier Airlines
Frontier AirlinesDirect
DEN - STL
167$
159$
Prime price per passenger
Thu, Apr 9
Frontier Airlines
Frontier AirlinesDirect
STL - DEN
-22 %
17$
14$
Prime price per passenger
Sun, May 10
Frontier Airlines
Frontier AirlinesDirect
STL - DEN
27$
26$
Prime price per passenger
Tue, Apr 14
Frontier Airlines
Frontier AirlinesDirect
STL - DEN
27$
26$
Prime price per passenger
Sun, Apr 26
Frontier Airlines
Frontier AirlinesDirect
STL - DEN
28$
27$
Prime price per passenger
Sun, Mar 29
Frontier Airlines
Frontier AirlinesDirect
STL - DEN
33$
32$
Prime price per passenger
Fri, May 22
American Airlines
American Airlines1 stop
STL - DEN
101$
97$
Prime price per passenger
The prices shown on this page were available within the last 20 days for the specified periods and should not be considered the final price offered. Please note that availability and prices are subject to change.

Cheapest time to fly from St Louis, MO to Denver, CO

If you’re planning to fly this route soon, keep in mind that the lowest fares are usually available at the beginning of April. Take advantage of this period to save on your flight tickets and make the most of your trip. Please note that prices may change after your search.
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week: Apr 6 - Apr 12
Flights from just $89
$98
$100
$99
$104
$89
$94
$105
$101
$91
$101
$157
$166
MarchAprilMay
Flying Time6 h and 3 mWhen flying from St Louis, MO to Denver, CO, this can take around 6 h and 3 m in flying time, however this flight duration can vary due to other factors
Cheapest flight$14The best price for flights from St Louis, MO to Denver, CO offered by eDreams, which have been found by our customers in the last 3 days
Origin airportSt. Louis Lambert International AirportWhen flying from St Louis, MO to Denver, CO
Destination airportDenver International AirportFor the route from St Louis, MO to Denver, CO
Peak seasonMarchMarch is the busiest time to fly from St Louis, MO to Denver, CO according to search data results from our customers
Airlines operating this routeFrontier AirlinesAirline(s) that fly from St Louis, MO to Denver, CO
One-way average Price157.66A flight from St Louis, MO to Denver, CO at eDreams will cost around 157.66, this being based on prices of the previous 6 months of data
Best time to bookMarchJanuary is one of the most frequent times to fly to Denver, CO from St Louis, MO according to real data from our customers
Distance: 795 miles
St Louis, MO airports
Lambert-St Louis Internatl (STL)How far from city center: 12 miles
Denver, CO airports
Denver International (DEN)How far from city center: 19 miles

Are you planning to travel to Denver, CO for vacations, business or family visits? eDreams offers you the cheapest flights and best deals departing from St Louis, MO. With our fast search engine you will get a large selection of airfares from standard and low cost airlines worldwide and easily book your tickets for this route. If you are flexible we help you identify the cheapest day to fly to Denver, CO and if you need to leave soon you can check our most convenient last minute fares. Read all the useful information about your next destination and proceed to the reservation, indicating your flight dates and completing your travel booking with hotels and car rental!

Frequently asked questions about flights from St Louis, MO to Denver, CO

What are the benefits of booking flexible flight tickets?
Using the flexible flight ticket, you're guaranteed a refund or a rebooking option (without fees) in case of flight cancellations when travelling to United States. At eDreams have you covered!
On average, how much is the price of a flight from St Louis, MO to Denver, CO?
When you fly from St Louis, MO to Denver, CO the average price is 157.66. However, this price depends on many other factors such as seasonality or how far in advance the route has been booked.
For flights from St Louis, MO to Denver, CO, how can I find the cheapest price?
The cheapest price for a flight from St Louis, MO to Denver, CO is $14. At eDreams we use different machine learned based methodologies to find our costumers the best option available, considering airline combinations, stopovers and direct flights as well as different criteria for inbound and outbound journeys.
When booking, when is the best time to get the best prices for flights from St Louis, MO to Denver, CO?
The most popular months to book a trip from St Louis, MO to Denver, CO are May, June and July, based on the searches of our customers.
When is the best time to travel from St Louis, MO to Denver, CO?
The best time of the year to visit Denver, CO depends on lots of personal preferences, especially the price. Regarding popularity, July is the best month to fly to Denver, CO from St Louis, MO in terms of searches from our customers, followed by April and September. If you prefer to avoid the busy season and get away from the crowds February, December and March are the months with fewer searches for St Louis, MO - Denver, CO.
How long does the flight from St Louis, MO to Denver, CO take?
Flight length from St Louis, MO to Denver, CO is around 6 h and 3 m on average, at an average distance of 794.71 mi, for flights for the route (which may have 1 or more stops in other cities in between).

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