Cheap flights from St. Louis, MO to Denver, CO

Flights starting at £18. Choose between United Airlines, Frontier Airlines, or Spirit Airlines to find the best price.

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The distance between St. Louis and Denver is 1236 km. The most popular airlines for this route are United Airlines, Frontier Airlines, Spirit Airlines, Southern Airways Express, and Sun Country Airlines. St. Louis and Denver have 85 direct flights per week.

Weekly direct flights

Discover the top airlines offering direct flights from St. Louis to Denver in the next month. You’ll find the number of daily direct flights per airline in the table.

Weekly direct flights for Mon 08.04 - Sun 14.04

AirlineMon 08.04Tue 09.04Wed 10.04Thu 11.04Fri 12.04Sat 13.04Sun 14.04
3333333
11111---1

Weekly direct flights for Mon 15.04 - Sun 21.04

AirlineMon 15.04Tue 16.04Wed 17.04Thu 18.04Fri 19.04Sat 20.04Sun 21.04
3333333
1111111

Weekly direct flights for Mon 22.04 - Sun 28.04

AirlineMon 22.04Tue 23.04Wed 24.04Thu 25.04Fri 26.04Sat 27.04Sun 28.04
3333333
1111111

Weekly direct flights for Mon 29.04 - Sun 05.05

AirlineMon 29.04Tue 30.04Wed 01.05Thu 02.05Fri 03.05Sat 04.05Sun 05.05
3333333
1111111

Check-in for a flight from St. Louis to Denver

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
United AirlinesUALUAYesNo
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight
Spirit AirlinesNKSNKNoOpens 24 days before flight
Closes 1 hours before flight
Southern Airways ExpressFDY9XYesNo
Sun Country AirlinesSCXSYYesNo

Denver travel tips

1) Follow the steps of the Beatles in Denver
2) Eat some hand-made food at Denver Central Market
3) Going picnicking in Denver or just shopping at Cooks Fresh Market, try their sandwiches

Weather in Denver

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January4°C-6°C
February4°C-6°C
March10°C-2°C
April13°C1°C
May18°C6°C
June26°C12°C
July29°C16°C
August28°C15°C
September25°C11°C
October17°C4°C
November10°C-1°C
December4°C-6°C
Hottest Month
29°C
July
Coldest month
-6°C
January
Sunny days
260
days per year
Snow days
27
days per year

14 day forecast

Wednesday
3 Apr
19°C6°C
10 Apr
17°C5°C
Thursday
4 Apr
23°C8°C
11 Apr
21°C8°C
Friday
5 Apr
24°C11°C
12 Apr
24°C11°C
Saturday
6 Apr
89%
10°C6°C
13 Apr
24°C12°C
Sunday
7 Apr
87%
13°C6°C
14 Apr
87%
23°C14°C
Monday
8 Apr
54%
13°C4°C
15 Apr
79%
22°C12°C
Tuesday
9 Apr
11°C2°C
16 Apr
89%
12°C9°C

Frequently asked questions

How long does it take to travel from St. Louis to Denver?
What is the flight distance between St. Louis and Denver?
What airlines offer nonstop (direct) flights between St. Louis and Denver?
What are the most popular routes to and from St. Louis?
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What airports are near St. Louis?
What airports are near Denver?
Is it possible to combine flights, buses, and trains in one itinerary when traveling between St. Louis and Denver?
What is Virtual Interlining and how do I use it?
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How many airports are there near St. Louis?
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What time do flights between St. Louis and Denver depart?
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