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

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Tips to know when travelling to Washington, D.C.

Book your trip to arrive at Washington Dulles International, Baltimore–Washington International, or Ronald Reagan Washington National. The distance between St. Louis and Washington, D.C. is 1118 km. The most popular airlines for this route are United Airlines, and Alaska Airlines. St. Louis and Washington, D.C. have 54 direct flights per week. When you arrive at Washington, D.C., consider visiting Lincoln Memorial, and National Mall.

Weekly direct flights

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

Weekly direct flights for Sun 25.08 - Sat 31.08

AirlineSun 25.08Mon 26.08Tue 27.08Wed 28.08Thu 29.08Fri 30.08Sat 31.08
2222122

Weekly direct flights for Sun 01.09 - Sat 07.09

AirlineSun 01.09Mon 02.09Tue 03.09Wed 04.09Thu 05.09Fri 06.09Sat 07.09
2222222

Weekly direct flights for Sun 08.09 - Sat 14.09

AirlineSun 08.09Mon 09.09Tue 10.09Wed 11.09Thu 12.09Fri 13.09Sat 14.09
2222222

Weekly direct flights for Sun 15.09 - Sat 21.09

AirlineSun 15.09Mon 16.09Tue 17.09Wed 18.09Thu 19.09Fri 20.09Sat 21.09
2222222

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

NameCarrier codeIATA CodePassport needed during booking
United AirlinesUALUAYes
Alaska AirlinesASAASNo

Weather in Washington, D.C.

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January5°C-1°C
February8°C0°C
March12°C3°C
April19°C8°C
May23°C13°C
June28°C18°C
July31°C21°C
August30°C20°C
September26°C17°C
October20°C11°C
November13°C4°C
December8°C1°C
Hottest Month
31°C
July
Coldest month
-1°C
January
Sunny days
266
days per year
Snow days
8
days per year

14 day forecast

Wednesday
28 Aug
89%
38°C23°C
4 Sep
82%
21°C16°C
Thursday
29 Aug
89%
28°C21°C
5 Sep
26°C17°C
Friday
30 Aug
86%
23°C20°C
6 Sep
26°C14°C
Saturday
31 Aug
88%
33°C21°C
7 Sep
26°C16°C
Sunday
1 Sep
75%
29°C20°C
8 Sep
29°C17°C
Monday
2 Sep
25°C18°C
9 Sep
31°C18°C
Tuesday
3 Sep
25°C15°C
10 Sep
81%
22°C16°C

Frequently asked questions

How long does it take to travel from St. Louis to Washington, D.C.?
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What time do flights between St. Louis and Washington, D.C. depart?
What time do flights between St. Louis and Washington, D.C. arrive?

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