Cheap Flight Tickets from Washington (DCA) to St Louis (STL), Starting at $219

Good to Know: Cheapest and Fastest DCA - STL Flights

Useful information for finding best airline tickets from Ronald Reagan Washington National to Lambert St Louis International on your next trip.

Cheapest Round Trip Flight

$219

WN Southwest Airlines • nonstop • 3h 40m

Sep 17 – Sep 20

The cheapest round trip flight from Washington to St Louis (DCA-STL-DCA) is currently $219

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Cheapest Direct Flight

$219

WN Southwest Airlines • nonstop • 3h 40m

Sep 17

The cheapest nonstop flight from Washington to St Louis (DCA-STL) is currently $219

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Fastest Flight

3h 30m

The fastest nonstop flight from Washington to St Louis (DCA-STL) takes 3h 30m

Top Airlines Flying from Washington to St Louis

Southwest Airlines-WN

Southwest Airlines

Delta Airline, DL

Delta Airlines

Alaska Airlines -AS

Alaska Airlines

United Airlines, UA

United Airlines

American Airlines, AA

American Airlines

Latest Flight Deals from Washington (DCA) to St Louis (STL)

Compare and book low fare round-trip air tickets from Washington to St Louis. Ideal for travelers with confirmed return itineraries.

Sep 17 - Sep 20, Economy
WN
Washington → St Louis
3h 40m
8:15 AM - 9:35 AM • nonstop
WN
Washington → St Louis
3h 20m
3:55 PM - 6:55 PM • nonstop
$219
Southwest Airlines
Sep 17 - Sep 20, Economy
DL
Washington → St Louis
12h 4m
6:59 AM - 1:23 PM • 1 stop
DL
Washington → St Louis
11h 50m
2:30 PM - 10:40 PM • 1 stop
$283
Delta Airlines
Sep 17 - Sep 20, Economy
DL
Washington → St Louis
10h 40m
10:14 AM - 3:54 PM • 1 stop
DL
Washington → St Louis
7h 21m
4:59 PM - 10:40 PM • 1 stop
$320
Delta Airlines
Sep 17 - Sep 20, Economy
DL
Washington → St Louis
13h 43m
6:00 AM - 1:23 PM • 1 stop
DL
Washington → St Louis
9h 5m
4:59 PM - 11:44 PM • 1 stop
$340
Delta Airlines
Sep 17 - Sep 20, Economy
AS
Washington → St Louis
43h 31m
5:27 PM - 6:38 PM • 2 stops
AS
Washington → St Louis
23h 50m
6:29 AM - 9:59 PM • 1 stop
$689
Alaska Airlines
Sep 17 - Sep 20, Economy
AS
Washington → St Louis
49h 11m
9:30 AM - 2:21 PM • 2 stops
AS
Washington → St Louis
38h 44m
7:36 PM - 8:00 PM • 2 stops
$729
Alaska Airlines

Fly from Washington to St Louis with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Washington to St Louis? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Washington to St Louis Flights

What are the airports in Washington?
IAD,BWI,DCA
What’s the most popular airline flying from DCA to STL?
The most popular airline flying from Washington to St Louis are
Can I fly from DCA to STL non-stop?
Yes, you can fly DCA to STL non-stop on
Which airlines fly nonstop between Washington and St Louis?
The non-stop flights between Washington and St Louis are .
What’s the earliest departure time from DCA to STL Airport?
The earliest flight leaves DCA at 6:00 am and lands in STL - Lambert St Louis International
What are the airports in St Louis?
STL
Can I make changes to my Washington to St Louis flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from DCA to STL?
Read the fare rules of the Washington to St Louis air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Washington and St Louis?
operate flights between Washington and St Louis
How long does a flight from Washington to St Louis take?
It takes approximately 2 hour to fly non-stop from DCA to STL, which is 719.05 miles by air.
Which airlines provide the cheapest flights from Washington (DCA) to St Louis (STL) ?
In the past couple of days, the cheapest tickets to STL from DCA were found on DL : USD 320
Do I need a passport to fly between DCA and STL?
No
What’s the latest departure time from DCA to STL ?
The last flight leaves DCA at 7:59 pm

Washington (DCA) to St Louis (STL): Airport Information

Origin Airport Ronald Reagan Washington National , Washington, US
Destination Airport Lambert St Louis International , St Louis, US
Distance 719 miles

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