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Cheap flights from Washington to St Louis (WAS - STL)

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The best prices from Washington to St Louis are usually found in April or September, booked 41 days in advance, depart on a Saturday or Tuesday and return on a Saturday

WAS - STL
Price
$280 - $353
STL
Temperature
44.6 - 89.6 °F
STL
Rainfall
2.2 - 5.1 inches
Popular in January High demand for flights, 12% potential price rise
Cheapest in April Best time to find cheap flights, 10% potential price drop
Average price $280 Average for round-trip flights in April 2020
Round-trip from $280 From Washington to St Louis

Cheap flights from Washington to St Louis in April 2020

The best prices found for IAD to STL flights for April
10 Apr - 12 Apr
$120pp
BWI
Baltimore/Washington
Multiple Airlines
   
2 STOPS
STL
Lambert-St Louis
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
BWI
Baltimore/Washington
7 Apr - 9 Apr
$133pp
BWI
Baltimore/Washington
Multiple Airlines
   
2 STOPS
STL
Lambert-St Louis
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
BWI
Baltimore/Washington
7 Apr - 9 Apr
$152pp
IAD
Washington Dulles Intl
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Multiple Airlines
Non-Stop
IAD
Washington Dulles Intl

Washington to St Louis 2020 flight deals

Cheap flights to St Louis from Washington found for this year
3 Aug - 17 Aug
$107pp
IAD
Washington Dulles Intl
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Multiple Airlines
Non-Stop
IAD
Washington Dulles Intl
16 Jul - 19 Jul
$120pp
IAD
Washington Dulles Intl
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Multiple Airlines
Non-Stop
IAD
Washington Dulles Intl
1 Jul - 5 Jul
$121pp
IAD
Washington Dulles Intl
Multiple Airlines
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
IAD
Washington Dulles Intl

Non-stop flights to St Louis from Washington

Save time with Washington to St Louis direct flight deals
4 Apr - 6 Apr
$157pp
DCA
Washington Reagan-National
Major Airline
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
Major Airline
Non-Stop
DCA
Washington Reagan-National

Last minute flights from Washington to St Louis

Late deals on round-trip flights to St Louis from Washington, departing today and this week
4 Apr - 6 Apr
$133pp
BWI
Baltimore/Washington
Multiple Airlines
   
2 STOPS
STL
Lambert-St Louis
STL
Lambert-St Louis
Multiple Airlines
     
3 STOPS
BWI
Baltimore/Washington
7 Apr - 9 Apr
$152pp
IAD
Washington Dulles Intl
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Multiple Airlines
Non-Stop
IAD
Washington Dulles Intl
7 Apr - 9 Apr
$153pp
DCA
Washington Reagan-National
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Multiple Airlines
Non-Stop
DCA
Washington Reagan-National

Alternative routes for Washington to St Louis

Destination information for St Louis

Things to know before you go. Useful info for your trip from Washington to St Louis
Average temperature for April in St Louis
69.8 °F
Avg rainfall for April in St Louis
4.1 ″

Airports servicing Washington

Washington Dulles Intl (IAD)

Airports servicing St. Louis

Weekly flight availability
from Washington to St Louis
Sunday
17 daily flights
Monday
18 daily flights
Tuesday
17 daily flights
Wednesday
18 daily flights
Thursday
18 daily flights
Friday
18 daily flights
Saturday
12 daily flights

Related info for your journey

Useful info, stats and facts about Washington to St Louis flights.

Flight FAQs

From Washington to St Louis

Are flight prices decreasing from Washington to St Louis due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Washington and St Louis for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Are there nonstop flights from Washington to St Louis for under $100 on Cheapflights?

There are no nonstop flights from Washington to St Louis, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Are there last-minute flights available from Washington to St Louis for under $200?

There are currently just 3 open flights from Washington to St Louis within the next 7 days for less than $200.

What days are nonstop flights available from Washington to St Louis?

Days when nonstop flights are available for this flight are: Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday.

How popular is this flight route?

Within the past month, 18 users have taken a look at flights from Washington to Lambert-St Louis.

What percent of flights are delayed?

When booking remember that flights Washington to St Louis are typically delayed by 43min. so prepare as needed.

What is the cheapest airline for this route?

American Airlines Inc. offers the cheapest flights from Washington to St Louis. Per day you can find on average 73 flights for this route and airline.

How long does the flight from Washington to St Louis take?

You can expect a flight time of up to 3 hours for nonstop. Airlines will travel a distance of up to 448 miles.

How many flights depart from Washington to St Louis on average per day?

On average 40 flights depart from Washington to Lambert-St Louis per day.
Early Morning (Midnight to 6am) - 3% of flight departures
Morning (6am - Noon) - 48% of flight departures
Afternoon (Noon - 6pm) - 33% of flight departures
Evening (6pm - Midnight) - 18% of flight departures

Is Washington weather warmer or cooler than St Louis?

Our data indicates that the weather will be 90 °F on average in the month of July. The temperature in St Louis is typically the same as in Washington. If you're traveling when the temperature is at its warmest, push to plan early, as flight price and availability will have an impact on your travels. For the best results, search for flights well in advance or after peak season.