Cheap flights from St. Louis to Washington

Round-trip
1 adult
Economy
From?
To?
Sat 8/7
Sat 8/14

Travel Restriction Alert

The COVID-19 (coronavirus) outbreak may impact travel from Lambert-St Louis to Washington.
View current United States travel restrictions

Flight information for St. Louis to Washington
(STL to WAS)

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Washington
Best Price Found$105The best flight deal from St. Louis to Washington found on momondo in the last 72 hours is $105
Fastest flight time1h 56mThe fastest flight from St. Louis to Washington takes 1h 56m
Direct flightsNoneThere are no direct flights from St. Louis to Washington. Popular non-direct routes for this connection are Lambert-St Louis Airport - Baltimore/Washington Airport, Lambert-St Louis Airport - Washington Reagan-National Airport and Lambert-St Louis Airport - Washington Dulles Intl Airport.
Airports in Washington2 airportsThere are 2 airports near Washington: Washington Reagan-National (DCA), Washington Dulles Intl (IAD)

How to get the cheapest flight ticket from St. Louis to Washington

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly from St. Louis to Washington?

August

The cheapest time of year to fly to Washington from St. Louis is August. Most expensive is March

What is the cheapest day to depart St. Louis for Washington?

Saturday

The cheapest day of the week is typically Saturday. The most expensive is typically Sunday

When is the cheapest time to fly from St. Louis to Washington?

in the evening

St. Louis to Washington flights are approximately 49% more expensive in the afternoon than in the evening

What is the cheapest airline that flies to Washington from St. Louis?

Frontier

American Airlines, Delta, and Frontier are the most popular carriers operating from St. Louis to Washington

What is the cheapest St. Louis to Washington flight route?

Lambert-St Louis - Baltimore/Washington

Fly from Lambert-St Louis to Baltimore/Washington for the best St. Louis - Washington flight prices

How far in advance should you book St. Louis to Washington flights?

27 days before

The cheapest time to buy a flight from St. Louis to Washington is approximately 27 days to departure


Easily compare round-trip flights from St. Louis to Washington

Below you can see the best fares for your round-trip flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from St. Louis to Washington by changing tabs
Spirit Airlines
Sep 21
STL8:23 amLambert-St Louis
6h 53m
1 stop
BWI3:16 pmBaltimore/Washington
Sep 24
BWI2:00 amBaltimore/Washington
7h 35m
1 stop
STL9:35 amLambert-St Louis
Spirit Airlines
Aug 27
STL3:00 amLambert-St Louis
7h 45m
1 stop
BWI10:45 amBaltimore/Washington
Aug 29
BWI2:00 amBaltimore/Washington
7h 52m
1 stop
STL9:52 amLambert-St Louis
Spirit Airlines
Aug 26
STL3:00 amLambert-St Louis
12h 15m
1 stop
BWI3:15 pmBaltimore/Washington
Aug 30
BWI2:00 amBaltimore/Washington
7h 42m
1 stop
STL9:42 amLambert-St Louis
Spirit Airlines
Sep 10
STL3:00 amLambert-St Louis
12h 16m
1 stop
BWI3:16 pmBaltimore/Washington
Sep 12
BWI2:00 amBaltimore/Washington
7h 53m
1 stop
STL9:53 amLambert-St Louis
Spirit Airlines
Aug 25
STL4:10 pmLambert-St Louis
13h 02m
1 stop
BWI5:12 amBaltimore/Washington
Aug 28
BWI2:00 amBaltimore/Washington
7h 42m
1 stop
STL9:42 amLambert-St Louis
Spirit Airlines
Aug 26
STL4:10 pmLambert-St Louis
13h 02m
1 stop
BWI5:12 amBaltimore/Washington
Aug 29
BWI2:00 amBaltimore/Washington
7h 52m
1 stop
STL9:52 amLambert-St Louis

Find the cheapest one-way flights from St. Louis to Washington

If you're looking for one-way flights from St. Louis to Washington, view some of our deals below provided by Delta, Frontier and Spirit Airlines
United Airlines
Aug 24
STL2:15 amLambert-St Louis
2h 02m
IAD4:17 amWashington Dulles Intl
Delta
Oct 9
STL11:25 amLambert-St Louis
7h 04m
1 stop
BWI6:29 pmBaltimore/Washington
Spirit Airlines
Aug 12
STL3:00 amLambert-St Louis
8h 00m
1 stop
BWI11:00 amBaltimore/Washington

Best airlines flying from St. Louis to Washington

Compare and see reviews for airlines that fly from St. Louis to Washington with momondo
AirlineRatingFree CancellationPrice
Frontier
PriceFrom $112
Free Cancellation
Rating
6.0
6.3

Boarding

5.8

Comfort

6.7

Crew

4.9

Entertainment

5.1

Food

Reviews

Pros: The wonderful crews and the comfortable seat

Cons: Snack and drink

1 / 10
American Airlines
PriceFrom $123
Free Cancellation
Rating
7.2
7.4

Boarding

7.1

Comfort

7.8

Crew

7.0

Entertainment

6.8

Food

Reviews

Pros: Delayed flight no reasons seems like American Airlines don’t know what to do in these situations

Cons: I believe this airlines should have figured the answer to this question by now.

1 / 10
Delta
PriceFrom $130
Free Cancellation
Rating
8.2
8.3

Boarding

8.5

Comfort

8.3

Crew

7.9

Entertainment

8.0

Food

Reviews

Cons: Wouldn't let us on the flight when there was plenty of time to get there. Manager was arrogant and slow - didn't care. Poor policies at that airport.

1 / 10
United Airlines
PriceFrom $131
Free Cancellation
Rating
6.8
7.2

Boarding

6.6

Comfort

7.5

Crew

6.6

Entertainment

6.1

Food

Reviews

Pros: Everything! From ticketing agent to all the crew on our flight back were awesome. Thank you!

1 / 10

  • Are airlines flying from Lambert-St Louis to Washington offering flexible cancellation due to COVID-19?

    Some of our partner airlines flying from Lambert-St Louis to Washington are adopting new policies due to the global impact of COVID-19. Some of the airlines that may be waiving their cancellation fees are American Airlines, United Airlines, and Delta. You can search for the full list of airlines like American Airlines that are offering this flexibility.

  • How far is Lambert-St Louis to Washington by plane?

    A flight from Lambert-St Louis to Washington will travel around 708.3 mi. By plane, this route typically takes 1h 56m.


Can I fly to Washington from Lambert-St Louis right now?

Information is based on travel restrictions for travel to Washington within the United States

Most visitors from Lambert-St Louis need to provide a negative COVID-19 test result and/or quarantine to enter Washington.

COVID-19 testing requirements
Visitors from Lambert-St Louis must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Washington.

Quarantine requirements
Visitors from Lambert-St Louis are not required to quarantine after entering Washington.

Can I fly back to Lambert-St Louis from Washington?

Returning to Lambert-St Louis from Washington

COVID-19 testing requirements
Visitors from Washington must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Lambert-St Louis.

Quarantine requirements
Visitors from Washington are not required to quarantine after entering Lambert-St Louis.

If you are planning to travel to Washington at this time, it is recommended that you stay up to date on current restrictions and follow proper safety measures while in public.

Alternative routes for St. Louis to Washington

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Kansas City to Washington Flights
Fastest flight time2h 21m
Cheapest price$167