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Fares from $75 One Way, $146 Round Trip from St. Louis to Washington

Prices starting at $146 for return flights and $75 for one-way flights to Washington were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

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More About Flying To Washington from St. Louis

Route Information for Flights from St. Louis to Washington

Origin Airport IATA CodeSTL
Destination Airport IATA CodeWAS
Distance735 mi
Direct Flight AirlinesSouthwest Airlines
Earliest Flight Arrival2:00PM UTC
Latest Flight Arrival2:45AM UTC

Flights Review

Mar 4, 2020

Very good flight from start to finish.

Jan 2, 2020

My husband and I checked in together. Upon arrival at baggage claim, my suitcase did not appear for an hour. I asked a United rep to track my bag and he (David) was very helpful. When my fairly new Travelpro bag arrived at baggage claim an hour after our arrival, it was damaged beyond repair. I will now have to shop for new luggage. Apparently six or more United Express flights arrived at the same time and my suitcase was bottlenecked in the carousel. The flight was wonderful and check in was a breeze. The flight attendants were very pleasant. Finding my broken suitcase was not the best ending to an otherwise delightful trip home.

Dec 28, 2019

Lower prices would be nice.

Nov 3, 2019

It was very cold on the plane but besides that everything was great

Sep 3, 2019

The Flight Attendants were the very best!

Aug 25, 2018

Which they have a wider space

Jul 7, 2018

Flight from St. Louis back to Washington, DC was better than flight out. Received TSA pre-check in, flight offered snack and drink even though Economy.

Jun 5, 2018

Unfortunately the flight was delayed by 45 minutes but that was not the airlines' fault.

Jun 1, 2018

My luggage did not make the final destination.. :0(

May 17, 2018

Would fly with this airline again

Fly from St Louis to Washington DC

Anyone living in St Louis interested in seeing the sights in the nation's capital can fly to Washington DC in less than two hours. Several flights depart daily from Lambert-Saint Louis International Airport (STL), and the plentiful long-term parking makes it convenient to get away for a while.


DC is filled with museums that are free to the public, including the American Art Museum, the American History Museum and the Air and Space Museum, all of which are part of the prestigious group of Smithsonian museums. They're concentrated along the National Mall, a vast stretch of land that has the White House on one end and the Lincoln Memorial on the other. A number of other memorials are very moving, including the National World War II and the Vietnam Veterans Memorials. If you'd like to relax your feet, you can grab a meal or a drink at one of the trendy restaurants or bars in the neighborhoods of Adams Morgan, Georgetown or Dupont Circle.

Hints and tips

The region is served by Washington Dulles International Airport (IAD) and Ronald Reagan National Airport (DCA). The Metro is clean and convenient, and it saves you from navigating busy streets like Connecticut and Pennsylvania Avenues by car. Many visitors come in March and April to see the cherry blossoms and take part in the Cherry Blossom Festival, and they're usually greeted with pleasant temperatures in the low 60s during the day.

Flights from St. Louis to Washington - Frequently Asked Questions

Are there non-stop flights from St. Louis to Washington?

Have your credit card in hand, because there are two carriers that fly nonstop from St. Louis, MO Airport (STL-Lambert-St. Louis Intl.) to Washington, DC Airport (DCA-Ronald Reagan Washington National). Lock in a great deal with Southwest Airlines or American Airlines.

What is the shortest flight from St. Louis to Washington?

The journey from St. Louis to Washington can be as quick as 1 hour and 55 minutes. With an easy flight time like this, why not book a spontaneous getaway?

What airlines fly from St. Louis to Washington most frequently?

Southwest Airlines (WN) is one of the airlines with the most flights from St. Louis, MO Airport (STL-Lambert-St. Louis Intl.) to Washington, DC Airport (DCA-Ronald Reagan Washington National). It offers 99 flights on this route each month. Taking a vacation is one of life's greatest pleasures, and this carrier will get you to your destination quickly and safely. American Airlines (AA) also travels from St. Louis to Washington. It's another reliable choice and offers 68 flights monthly.

^Savings based on all package bookings with Flight + Hotel made on from January 1, 2019 to December 31, 2019 as compared to the price of the same components booked separately. Savings will vary based on origin/destination, length of trip, stay dates and selected travel supplier(s). Savings not available on all packages.