Cheap flights from Washington to St. Louis

Round-trip
1 adult
Economy
From?
To?
Sun 9/26
Sun 10/3

Travel Restriction Alert

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

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

Find info about flight duration, direct flights, and airports for your flight from Washington to St. Louis
Best Price Found$109The best flight deal from Washington to St. Louis found on momondo in the last 72 hours is $109
Fastest flight time2h 12mThe fastest flight from Washington to St. Louis takes 2h 12m
Direct flightsNoneThere are no direct flights from Washington to St. Louis. Popular non-direct routes for this connection are Washington Dulles Intl Airport - Lambert-St Louis Airport, Washington Reagan-National Airport - Lambert-St Louis Airport and Baltimore/Washington Airport - Lambert-St Louis Airport.
Airports in St. Louis1 airportThere is 1 airport near St. Louis: Lambert-St Louis (STL)

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

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 Washington to St. Louis?

July

The cheapest time of year to fly to St. Louis from Washington is July. Most expensive is January

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

Tuesday

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

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

at noon

Washington to St. Louis flights are approximately 11% more expensive in the afternoon than at noon

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

Frontier

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

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

Baltimore/Washington - Lambert-St Louis

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

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

31 days before

The cheapest time to buy a flight from Washington to St. Louis is approximately 31 days to departure


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

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 Washington to St. Louis by changing tabs
Frontier
Nov 9
BWI1:00 amBaltimore/Washington
6h 45m
1 stop
STL7:45 amLambert-St Louis
Nov 13
STL4:45 amLambert-St Louis
13h 45m
1 stop
BWI6:30 pmBaltimore/Washington
Multiple Airlines
Nov 6
BWI2:00 amBaltimore/Washington
7h 32m
1 stop
STL9:32 amLambert-St Louis
Nov 13
STL4:45 amLambert-St Louis
13h 45m
1 stop
BWI6:30 pmBaltimore/Washington
Spirit Airlines
Oct 5
BWI3:50 pmBaltimore/Washington
17h 42m
1 stop
STL9:32 amLambert-St Louis
Oct 8
STL3:00 amLambert-St Louis
25h 46m
1 stop
BWI4:46 amBaltimore/Washington
Multiple Airlines
Nov 6
BWI2:00 amBaltimore/Washington
7h 32m
1 stop
STL9:32 amLambert-St Louis
Nov 8
STL10:28 amLambert-St Louis
17h 18m
1 stop
BWI3:46 amBaltimore/Washington
Spirit Airlines
Oct 4
BWI5:20 amBaltimore/Washington
25h 35m
1 stop
STL6:55 amLambert-St Louis
Oct 9
STL3:00 amLambert-St Louis
8h 12m
1 stop
BWI11:12 amBaltimore/Washington
Multiple Airlines
Oct 5
BWI5:37 amBaltimore/Washington
8h 41m
1 stop
STL2:18 pmLambert-St Louis
Oct 7
STL3:59 pmLambert-St Louis
13h 14m
1 stop
BWI5:13 amBaltimore/Washington

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

If you're looking for one-way flights from Washington to St. Louis, view some of our deals below provided by Frontier and Spirit Airlines
Spirit Airlines
Oct 4
BWI2:00 amBaltimore/Washington
7h 35m
1 stop
STL9:35 amLambert-St Louis
Frontier
Nov 1
BWI7:18 amBaltimore/Washington
7h 18m
1 stop
STL2:36 pmLambert-St Louis
Multiple Airlines
Oct 7
IAD7:15 amWashington Dulles Intl
26h 17m
1 stop
STL9:32 amLambert-St Louis

Search last-minute flights to St. Louis from Washington

Find and compare flight prices for your last-minute flight from Washington to St. Louis
Spirit Airlines
Sep 26
BWI2:25 pmBaltimore/Washington
19h 10m
1 stop
STL9:35 amLambert-St Louis
Sep 27
STL3:58 pmLambert-St Louis
13h 10m
1 stop
BWI5:08 amBaltimore/Washington
Multiple Airlines
Oct 1
BWI3:50 pmBaltimore/Washington
17h 45m
1 stop
STL9:35 amLambert-St Louis
Oct 3
STL3:58 pmLambert-St Louis
12h 27m
1 stop
BWI4:25 amBaltimore/Washington
Spirit Airlines
Sep 26
BWI2:25 pmBaltimore/Washington
19h 10m
1 stop
STL9:35 amLambert-St Louis
Sep 29
STL3:58 pmLambert-St Louis
26h 28m
1 stop
BWI6:26 pmBaltimore/Washington
Spirit Airlines
Sep 26
BWI3:50 pmBaltimore/Washington
17h 45m
1 stop
STL9:35 amLambert-St Louis
Sep 27
STL3:58 pmLambert-St Louis
18h 51m
2 stops
BWI10:49 amBaltimore/Washington
Spirit Airlines
Sep 26
BWI3:50 pmBaltimore/Washington
17h 45m
1 stop
STL9:35 amLambert-St Louis
Sep 29
STL3:58 pmLambert-St Louis
23h 18m
2 stops
BWI3:16 pmBaltimore/Washington
Spirit Airlines
Oct 1
BWI3:50 pmBaltimore/Washington
17h 45m
1 stop
STL9:35 amLambert-St Louis
Oct 3
STL3:00 amLambert-St Louis
31h 49m
2 stops
BWI10:49 amBaltimore/Washington

Best airlines flying from Washington to St. Louis

Compare and see reviews for airlines that fly from Washington to St. Louis with momondo
AirlineRatingFree CancellationPrice
Frontier
PriceFrom $105
Free Cancellation
Rating
6.2
6.5

Boarding

5.9

Comfort

7.0

Crew

4.8

Entertainment

5.0

Food

Reviews

It was the first flight for the young captain and he did a great job! Also kudos to the flight crew for getting the passengers to let him know how he did.

1 / 10
American Airlines
PriceFrom $128
Free Cancellation
Rating
7.2
7.4

Boarding

7.1

Comfort

7.8

Crew

7.1

Entertainment

6.8

Food

Reviews

Flight attendant for first class is definitely not a morning person. Oh and the WiFi DID NOT WORK!

1 / 10
Delta
PriceFrom $155
Free Cancellation
Rating
8.3
8.3

Boarding

8.5

Comfort

8.4

Crew

8.1

Entertainment

8.1

Food

Reviews

Great

1 / 10
United Airlines
PriceFrom $155
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
Southwest
PriceFrom $208
Free Cancellation
Rating
8.2
8.3

Boarding

8.2

Comfort

8.6

Crew

7.3

Entertainment

7.6

Food

Reviews

12 hours later still haven’t left the airport

1 / 10

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

    Due to the global impact of COVID-19, some of our airline partners operating flights from Washington to Lambert-St Louis, such as American Airlines, United Airlines, and Delta may have put in place flexible cancellation policies. Use our site to search for all of the airlines offering this flexibility to you.

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

    There are 708.3 mi between Washington and Lambert-St Louis. 2h 04m is a normal flight duration for this route.


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

Information is based on travel restrictions for travel to Lambert-St Louis within the United States

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

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.

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

Returning to Washington from Lambert-St Louis

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.

If you are planning to travel to St. Louis 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 Washington to St. Louis

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Washington to Kansas City Flights
Fastest flight time2h 47m
Cheapest price$200