Looking to travel from the Gateway City to the Mile High City without breaking the bank? You're in luck! Several budget-friendly airlines offer affordable flights from St. Louis Lambert International Airport to Denver International Airport, making it easier than ever to explore the Rocky Mountains or enjoy the vibrant city life in Denver.
Airlines Operating on this Route:
Southwest Airlines: Known for its low fares and excellent customer service, Southwest Airlines offers multiple daily flights between St. Louis and Denver.
Frontier Airlines: With a focus on budget travel, Frontier Airlines provides a range of flight options for travelers looking to save on their journey.
Whether you're planning a weekend getaway or a business trip, these airlines make it convenient and affordable to travel between St. Louis and Denver. So pack your bags, book your ticket, and get ready to experience the best of both cities without breaking the bank!
Airlines
Days of the week
Class
Price
Frontier Airlines
Su
Mo
Tu
We
Th
Fr
Sa
1 daily flights
low cost airline
United Airlines
Su
Mo
Tu
We
Th
Fr
Sa
3 daily flights
Southwest Airlines
Su
Mo
Tu
We
Th
Fr
Sa
3-5 daily flights
low cost airline
Ongoing flight schedule from St. Louis to Denver
Review the non-stop flight timetable between Lambert-Saint Louis International Airport and Denver International Airport to assess variations in ticket prices.
Flight
Airline
Mon
Tue
Wed
Thu
Fri
Sat
Sun
F9 699
Frontier Airlines
Su
14:41
Mo
14:11
Tu
—
We
14:11
Th
14:41
Fr
14:11
Sa
14:11
UA 690
United Airlines
Su
08:39
Mo
08:39
Tu
08:39
We
08:39
Th
08:39
Fr
08:39
Sa
08:39
UA 2363
United Airlines
Su
13:38
Mo
13:38
Tu
13:38
We
13:38
Th
13:38
Fr
13:38
Sa
13:38
UA 5221
United Airlines
Su
16:34
Mo
16:25
Tu
16:25
We
16:25
Th
16:25
Fr
16:33
Sa
16:32
WN 697
Southwest Airlines
Su
—
Mo
05:50
Tu
05:50
We
05:50
Th
05:50
Fr
05:50
Sa
—
WN 1381
Southwest Airlines
Su
06:40
Mo
—
Tu
—
We
—
Th
—
Fr
—
Sa
—
WN 425
Southwest Airlines
Su
—
Mo
—
Tu
—
We
—
Th
—
Fr
—
Sa
06:45
WN 2742
Southwest Airlines
Su
—
Mo
08:10
Tu
08:10
We
08:10
Th
08:10
Fr
08:10
Sa
—
WN 444
Southwest Airlines
Su
10:55
Mo
—
Tu
—
We
—
Th
—
Fr
—
Sa
—
WN 700
Southwest Airlines
Su
13:20
Mo
—
Tu
—
We
—
Th
—
Fr
—
Sa
13:05
WN 791
Southwest Airlines
Su
—
Mo
13:15
Tu
13:15
We
13:15
Th
13:15
Fr
13:15
Sa
—
WN 2495
Southwest Airlines
Su
18:35
Mo
17:25
Tu
17:25
We
17:25
Th
17:25
Fr
17:25
Sa
17:05
WN 1252
Southwest Airlines
Su
—
Mo
20:20
Tu
20:20
We
20:20
Th
20:20
Fr
20:20
Sa
—
WN 1994
Southwest Airlines
Su
21:45
Mo
—
Tu
—
We
—
Th
—
Fr
—
Sa
—
Exploration of the expenses associated with a direct journey for the route
Non-stop flights at reasonable prices are available from Lambert-Saint Louis International Airport to Denver International Airport, with fares beginning at 162€. The month of June usually presents the most budget-friendly options, mirroring the pattern of the lowest monthly rates found in user queries.
€219Approximately
Jan
€171
Feb
€203
Mar
€201
Apr
€153
May
€167
Jun
€171
Jul
€181
Aug
€229
Sep
€219
Oct
€310
Nov
€310
Dec
€310
Usual price range for flights between Lambert-Saint Louis International Airport and Denver International Airport
Aircraft operating on this route
Consider the range the airplane can travel, the seating capacity available, and the various cabin classes offered for this trip.
A320neo
Frontier Airlines
186 seats(all economy)
Airbus A320
United Airlines
150 seats(all economy)
Airbus A319
United Airlines
126 seats(all economy)
Embraer 175 (Enhanced Winglets)
United Airlines
70 seats(all economy)
Boeing 737MAX 8 Passenger
Southwest Airlines
168 seats(all economy)
Boeing 737-800 (winglets) Passenger/BBJ2
Southwest Airlines
175 seats(all economy)
Boeing 737-700 (winglets) Passenger/BBJ1
Southwest Airlines
143 seats(all economy)
Summary of the route specifics
Cheapest flight found
153€
Average flight time
2:45 h
Cheapest month for a flight
April
Most popular airline
Frontier Airlines
Flights per week
21
Departing from Lambert-Saint Louis International Airport (STL)
Saint Louis International Airport (STL) is a major airport located in the United States, serving as a key hub for travelers and airlines alike.
Denver International Airport (DEN) ranks as the third largest airport in the United States, serving millions of travelers each year with its extensive facilities and services.
Approximately 1242 kilometers separate St. Louis from Denver.
What is the preferred airline for passengers traveling on this path?
Travelers often praise Frontier Airlines as the top choice for flights from St. Louis to Denver, citing its outstanding service and consistent on-time performance.
How much does a typical flight cost from St. Louis to Denver?
Commonly, a direct flight departing from Lambert-Saint Louis International Airport to Denver International Airport can be secured at the budget-friendly rate of 162€, especially in the month of June. In contrast, during the peak season in October, the standard ticket price usually rises to approximately 293€.
What is the number of carriers providing direct services between St. Louis and Denver?
At present, there are 3 airlines available for travelers opting for a direct flight from St. Louis to Denver. Notably, carriers like Frontier Airlines, United Airlines, Southwest Airline are recognized for their dedication to ensuring a smooth and uninterrupted journey.
How long is the flight from Lambert-Saint Louis International Airport to Denver International Airport?
Traveling from Lambert-Saint Louis International Airport to Denver International Airport usually spans a period close to 2h 45min. This time estimate encompasses the departure, flight at cruising altitude, and the descent leading to touchdown.
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