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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St. Louis STLWashington, D.C. DCA
£129
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Travelers usually depart from St. Louis Lambert International, or St. Louis Union Station when they travel from St. Louis to Washington, D.C.. Book your trip to arrive at Baltimore–Washington International, Washington Dulles International, Ronald Reagan Washington National, Washington, DC - Union Station, or Washington, DC - Rosslyn. The distance between St. Louis and Washington, D.C. is 1155 km. The most popular airlines for this route are Delta Air Lines, American Airlines, United Airlines, Spirit Airlines, and Frontier Airlines. St. Louis and Washington, D.C. have 401 direct flights per week. When you arrive at Washington, D.C., consider visiting Lincoln Memorial, Independence National Historical Park, PA, USA, 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 Mon 29.05 - Sun 04.06

AirlineMon 29.05Tue 30.05Wed 31.05Thu 01.06Fri 02.06Sat 03.06Sun 04.06
American Airlines
3333312
2222122

Weekly direct flights for Mon 05.06 - Sun 11.06

AirlineMon 05.06Tue 06.06Wed 07.06Thu 08.06Fri 09.06Sat 10.06Sun 11.06
3333312
2222222

Weekly direct flights for Mon 12.06 - Sun 18.06

AirlineMon 12.06Tue 13.06Wed 14.06Thu 15.06Fri 16.06Sat 17.06Sun 18.06
3333312
2222222

Weekly direct flights for Mon 19.06 - Sun 25.06

AirlineMon 19.06Tue 20.06Wed 21.06Thu 22.06Fri 23.06Sat 24.06Sun 25.06
3333312
United Airlines
2222222

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

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
Delta Air LinesDALDLYesOpens 24 days before flight
Closes 1 hours before flight
American AirlinesAALAAYesNo
United AirlinesUALUAYesNo
Spirit AirlinesNKSNKNoOpens 24 days before flight
Closes 1 hours before flight
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight

United States COVID-19 travel restrictions

Your trip summary

Departure

Travel restrictions
  • Travel is allowed
  • Proof of pre-departure COVID-19 test is not required
  • Quarantine is not required
Additional information
  • Masks are recommended in certain situations

Return

Travel restrictions
  • Travel is allowed
  • Proof of pre-departure COVID-19 test is not required
  • Quarantine is not required

Frequently asked questions

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What time do flights between St. Louis and Washington, D.C. arrive?

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