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

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Travelers usually depart from Baltimore–Washington International, Washington Dulles International, Ronald Reagan Washington National, Washington, DC - Rosslyn, or Washington, DC - Union Station 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, Spirit Airlines, Frontier Airlines, Southern Airways Express, and JetBlue Airways. Washington, D.C. and St. Louis have 147 direct flights per week.

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

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
United AirlinesUALUAYesNo
Spirit AirlinesNKSNKNoOpens 24 days before flight
Closes 1 hours before flight
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight
Southern Airways ExpressFDY9XYesNo
JetBlue AirwaysJBUB6NoOpens 24 days before flight
Closes 2 hours before flight

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

Thursday
2 May
83%
29°C17°C
9 May
21°C12°C
Friday
3 May
94%
23°C16°C
10 May
83%
14°C10°C
Saturday
4 May
80%
27°C16°C
11 May
18°C8°C
Sunday
5 May
84%
21°C13°C
12 May
22°C10°C
Monday
6 May
86%
28°C17°C
13 May
83%
24°C14°C
Tuesday
7 May
87%
26°C18°C
14 May
87%
26°C15°C
Wednesday
8 May
26°C15°C
15 May
18°C10°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.?
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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?
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