Cheap flights from Washington, D.C., United States to St. Louis, United States

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Travelers usually depart from Washington Dulles International, Baltimore–Washington International, or Ronald Reagan Washington National when they travel from Washington, D.C. to St. Louis. The distance between Washington, D.C. and St. Louis is 1118 km. The most popular airlines for this route are United Airlines, and Sun Country Airlines. Washington, D.C. and St. Louis have 45 direct flights per week.

Weekly direct flights

Discover the top airlines offering direct flights from Washington, D.C. 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 Sun 02.06 - Sat 08.06

AirlineSun 02.06Mon 03.06Tue 04.06Wed 05.06Thu 06.06Fri 07.06Sat 08.06
2---21221

Weekly direct flights for Sun 09.06 - Sat 15.06

AirlineSun 09.06Mon 10.06Tue 11.06Wed 12.06Thu 13.06Fri 14.06Sat 15.06
1111111

Weekly direct flights for Sun 16.06 - Sat 22.06

AirlineSun 16.06Mon 17.06Tue 18.06Wed 19.06Thu 20.06Fri 21.06Sat 22.06
2211211

Weekly direct flights for Sun 23.06 - Sat 29.06

AirlineSun 23.06Mon 24.06Tue 25.06Wed 26.06Thu 27.06Fri 28.06Sat 29.06
1121122

Check-in for a flight from Washington, D.C. to St. Louis

NameCarrier codeIATA CodePassport needed during booking
United AirlinesUALUAYes
Sun Country AirlinesSCXSYYes

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
4 Jun
88%
28°C19°C
11 Jun
21°C13°C
Wednesday
5 Jun
91%
27°C20°C
12 Jun
89%
21°C13°C
Thursday
6 Jun
27°C18°C
13 Jun
87%
24°C16°C
Friday
7 Jun
26°C15°C
14 Jun
27°C16°C
Saturday
8 Jun
85%
25°C19°C
15 Jun
83%
27°C19°C
Sunday
9 Jun
85%
23°C19°C
16 Jun
82%
33°C19°C
Monday
10 Jun
88%
22°C16°C
17 Jun
84%
33°C23°C

Frequently asked questions

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

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