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

Make your travel wishlist, we'll do the rest
Hidden deals
Effortless booking
Travel hacking
The distance between Denver and St. Louis is 1236 km. The most popular airlines for this route are United Airlines, and Frontier Airlines. Denver and St. Louis have 43 direct flights per week.

Weekly direct flights

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

Weekly direct flights for Mon 20.05 - Sun 26.05

AirlineMon 20.05Tue 21.05Wed 22.05Thu 23.05Fri 24.05Sat 25.05Sun 26.05
3333333
---------------11

Weekly direct flights for Mon 27.05 - Sun 02.06

AirlineMon 27.05Tue 28.05Wed 29.05Thu 30.05Fri 31.05Sat 01.06Sun 02.06
3333333
1111---11

Weekly direct flights for Mon 03.06 - Sun 09.06

AirlineMon 03.06Tue 04.06Wed 05.06Thu 06.06Fri 07.06Sat 08.06Sun 09.06
2333333
------1------------

Weekly direct flights for Mon 10.06 - Sun 16.06

AirlineMon 10.06Tue 11.06Wed 12.06Thu 13.06Fri 14.06Sat 15.06Sun 16.06
3333333
1------------------

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

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
United AirlinesUALUAYesNo
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight

St. Louis travel tips

1) Visit the Old St. Louis County Courthouse, where famous court cases were held
2) The Jefferson Barracks Telephone Museum introduces you to the history of telephony in St. Louis
3) Head to The Hill neighbourhood in St. Louis for ethnic cuisine

Weather in St. Louis

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January3°C-3°C
February6°C-2°C
March13°C3°C
April18°C8°C
May24°C14°C
June29°C19°C
July31°C21°C
August30°C20°C
September27°C16°C
October20°C10°C
November12°C3°C
December7°C0°C
Hottest Month
31°C
July
Coldest month
-3°C
January
Sunny days
261
days per year
Snow days
9
days per year

14 day forecast

Tuesday
14 May
98%
22°C17°C
21 May
88%
19°C18°C
Wednesday
15 May
23°C13°C
22 May
28°C18°C
Thursday
16 May
83%
23°C16°C
23 May
89%
27°C19°C
Friday
17 May
83%
20°C17°C
24 May
88%
29°C18°C
Saturday
18 May
81%
20°C17°C
25 May
89%
26°C19°C
Sunday
19 May
24°C16°C
26 May
24°C16°C
Monday
20 May
26°C14°C
27 May
25°C14°C

Frequently asked questions

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

Explore alternative trips

Flights from Denver

Flights to St. Louis

Popular routes

The nearest countries with flights to St. Louis

Here is a list of countries people are flying from

Other destination countries from Denver

Here is a list of countries people are flying to
Find the best connection from Denver to St. Louis
Search flights, trains & buses
We hack the system,
you fly for less