Cheap flights from St. Louis, United States to Washington, D.C., United States
Flights starting at £63. Choose between Delta Air Lines, American Airlines, or United Airlines to find the best price.
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Tips to know when travelling to Washington, D.C.
Cheapest one-way trip | £108 |
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Cheapest nonstop round-trip | £248 |
Cheapest round-trip | £221 |
Average round-trip | £248 |
Includes rare itinerary | Travel hack |
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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 Mon 29.05 - Sun 04.06
Airline | Mon 29.05 | Tue 30.05 | Wed 31.05 | Thu 01.06 | Fri 02.06 | Sat 03.06 | Sun 04.06 |
---|---|---|---|---|---|---|---|
3 | 3 | 3 | 3 | 3 | 1 | 2 | |
2 | 2 | 2 | 2 | 1 | 2 | 2 |
Weekly direct flights for Mon 05.06 - Sun 11.06
Airline | Mon 05.06 | Tue 06.06 | Wed 07.06 | Thu 08.06 | Fri 09.06 | Sat 10.06 | Sun 11.06 |
---|---|---|---|---|---|---|---|
3 | 3 | 3 | 3 | 3 | 1 | 2 | |
2 | 2 | 2 | 2 | 2 | 2 | 2 |
Weekly direct flights for Mon 12.06 - Sun 18.06
Airline | Mon 12.06 | Tue 13.06 | Wed 14.06 | Thu 15.06 | Fri 16.06 | Sat 17.06 | Sun 18.06 |
---|---|---|---|---|---|---|---|
3 | 3 | 3 | 3 | 3 | 1 | 2 | |
2 | 2 | 2 | 2 | 2 | 2 | 2 |
Weekly direct flights for Mon 19.06 - Sun 25.06
Airline | Mon 19.06 | Tue 20.06 | Wed 21.06 | Thu 22.06 | Fri 23.06 | Sat 24.06 | Sun 25.06 |
---|---|---|---|---|---|---|---|
3 | 3 | 3 | 3 | 3 | 1 | 2 | |
2 | 2 | 2 | 2 | 2 | 2 | 2 |
Check-in for a flight from St. Louis to Washington, D.C.
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
Delta Air Lines | DAL | DL | Yes | Opens 24 days before flight Closes 1 hours before flight |
American Airlines | AAL | AA | Yes | No |
United Airlines | UAL | UA | Yes | No |
Spirit Airlines | NKS | NK | No | Opens 24 days before flight Closes 1 hours before flight |
Frontier Airlines | FFT | F9 | No | Opens 24 days before flight Closes 1 hours before flight |
United States COVID-19 travel restrictions

Most travelers from St Louis, STL can enter Washington, IAD.
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Information is provided as guidance only and accurate at the time of publishing. Always check government websites and airline materials before booking and traveling.
Learn more about COVID-19 restrictions in United States in our dedicated Stories article.
Frequently asked questions
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