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

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The best prices from St Louis to Washington are usually found in January or February, booked 31 days in advance, depart on a Saturday or Tuesday and return on a Tuesday

$322
$298
$273
$248
Price
$248 - $312
Temperature
48 - 90 °F
Rainfall
2 - 4 inches
Most popular in October High demand for flights, 6% potential price rise
Cheapest in January Best time to find cheap flights, 1% potential price drop
Average price $286 Price for this month
Cheapest price $248 From St Louis to Washington

Last minute flights from St Louis to Washington

Late deals on round-trip flights to Washington from St Louis, departing today and this week
23 Nov - 29 Nov
$330pp
STL
Lambert-St Louis
Delta
 
1 STOP
DCA
Washington Reagan-National
DCA
Washington Reagan-National
Delta
 
1 STOP
STL
Lambert-St Louis
22 Nov - 24 Nov
$330pp
STL
Lambert-St Louis
Delta
 
1 STOP
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
Delta
 
1 STOP
STL
Lambert-St Louis
21 Nov - 25 Nov
$330pp
STL
Lambert-St Louis
Delta
 
1 STOP
DCA
Washington Reagan-National
DCA
Washington Reagan-National
Delta
 
1 STOP
STL
Lambert-St Louis

Alternative routes for St Louis to Washington

Destination information for Washington

Things to know before you go. Useful info for your trip from St Louis to Washington
Flight duration
2h 16m
Average temperature for November in Washington
60.8 °F
Avg rainfall for November in Washington
3.1 ″

Airports servicing St. Louis

Airports servicing Washington

Washington Dulles Intl (IAD)
Weekly flight availability
from St Louis to Washington
Sunday
7 daily flights
Monday
19 daily flights
Tuesday
19 daily flights
Wednesday
19 daily flights
Thursday
16 daily flights
Friday
16 daily flights
Saturday
7 daily flights

Related info for your journey

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

Flight FAQs

From St Louis to Washington

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

You can find nonstop flights on the following days: Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday.

How popular is this flight route?

This flight path from Lambert-St Louis to Washington was viewed by 25 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

What percent of flights are delayed?

Flights from St Louis to Washington are usually delayed by 39min. so prepare accordingly.

How many passenger seats are available on a flight on this route?

Expect 616 seats to be available on average per day for flights from Lambert-St Louis to Washington.

What is the cheapest airline for this route?

When searching, try setting your filters to view flights for American Airlines Inc., as currently they have the cheapest options available from St Louis to Washington. On average you can find 74 flights for this flight path daily.

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

Travelers can expect a nonstop flight to take approximately 2 hours, flying a distance of about 448 miles.

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

On average 32 flights depart from Lambert-St Louis to Washington per day.
Early Morning (Midnight to 6am) - 9% of flight departures
Morning (6am - Noon) - 25% of flight departures
Afternoon (Noon - 6pm) - 44% of flight departures
Evening (6pm - Midnight) - 22% of flight departures

Is St Louis weather warmer or cooler than Washington?

Expect the weather to be around 90 °F on average in July. As the temperature peaks, try to get your plans done early, as flight price and availability will have an impact on your travels. The climate in Washington is generally the same as in St Louis.