₹34,846 Cheap Flights from Washington (DCA) to St. Louis (STL)

View ₹34,846 flight on Sun, 20 Jul 2025Opens in a new window

Popular airlines from Ronald Reagan National Airport (DCA) to Lambert-St. Louis International Airport (STL)

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Cheap Flights from Washington (DCA) to St. Louis (STL)

Prices were available within the past 7 days and start at ₹34,846 for one-way flights and ₹68,349 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sun, 20 Jul - Wed, 23 Jul
DCA
Washington
STL
St. Louis
₹68,349 Return, found 17 hours ago
₹68,349
Return
found 17 hours ago
Select Delta flight, departing Sun, 20 Jul from Washington to St. Louis, returning Wed, 23 Jul, priced at ₹68,349 found 17 hours ago
Delta
Sun, 20 Jul - Wed, 23 Jul
DCA
Washington
STL
St. Louis
₹69,037 Return, found 17 hours ago
₹69,037
Return
found 17 hours ago
Select Delta flight, departing Sun, 20 Jul from Washington to St. Louis, returning Wed, 23 Jul, priced at ₹69,037 found 17 hours ago
United
Sun, 20 Jul - Wed, 23 Jul
DCA
Washington
STL
St. Louis
₹69,209 Return, found 17 hours ago
₹69,209
Return
found 17 hours ago
Select United flight, departing Sun, 20 Jul from Washington to St. Louis, returning Wed, 23 Jul, priced at ₹69,209 found 17 hours ago
American Airlines
Sun, 20 Jul - Wed, 23 Jul
DCA
Washington
STL
St. Louis
₹69,304 Return, found 17 hours ago
₹69,304
Return
found 17 hours ago
Select American Airlines flight, departing Sun, 20 Jul from Washington to St. Louis, returning Wed, 23 Jul, priced at ₹69,304 found 17 hours ago
American Airlines
Sun, 20 Jul - Wed, 23 Jul
DCA
Washington
STL
St. Louis
₹69,686 Return, found 17 hours ago
₹69,686
Return
found 17 hours ago
Select American Airlines flight, departing Sun, 20 Jul from Washington to St. Louis, returning Wed, 23 Jul, priced at ₹69,686 found 17 hours ago
United
Sun, 20 Jul - Wed, 23 Jul
DCA
Washington
STL
St. Louis
₹69,897 Return, found 17 hours ago
₹69,897
Return
found 17 hours ago
Select United flight, departing Sun, 20 Jul from Washington to St. Louis, returning Wed, 23 Jul, priced at ₹69,897 found 17 hours ago
American Airlines
Sun, 20 Jul - Wed, 23 Jul
DCA
Washington
STL
St. Louis
₹70,138 Return, found 17 hours ago
₹70,138
Return
found 17 hours ago
Select American Airlines flight, departing Sun, 20 Jul from Washington to St. Louis, returning Wed, 23 Jul, priced at ₹70,138 found 17 hours ago
American Airlines
Sun, 20 Jul - Wed, 23 Jul
DCA
Washington
STL
St. Louis
₹70,520 Return, found 17 hours ago
₹70,520
Return
found 17 hours ago
Select American Airlines flight, departing Sun, 20 Jul from Washington to St. Louis, returning Wed, 23 Jul, priced at ₹70,520 found 17 hours ago
Delta
Sun, 20 Jul - Wed, 23 Jul
DCA
Washington
STL
St. Louis
₹70,526 Return, found 17 hours ago
₹70,526
Return
found 17 hours ago
Select Delta flight, departing Sun, 20 Jul from Washington to St. Louis, returning Wed, 23 Jul, priced at ₹70,526 found 17 hours ago
Delta
Sun, 20 Jul - Wed, 23 Jul
DCA
Washington
STL
St. Louis
₹71,354 Return, found 17 hours ago
₹71,354
Return
found 17 hours ago
Select Delta flight, departing Sun, 20 Jul from Washington to St. Louis, returning Wed, 23 Jul, priced at ₹71,354 found 17 hours ago
Delta
Sun, 20 Jul - Wed, 23 Jul
DCA
Washington
STL
St. Louis
₹71,360 Return, found 17 hours ago
₹71,360
Return
found 17 hours ago
Select Delta flight, departing Sun, 20 Jul from Washington to St. Louis, returning Wed, 23 Jul, priced at ₹71,360 found 17 hours ago
United
Sun, 20 Jul - Wed, 23 Jul
DCA
Washington
STL
St. Louis
₹72,214 Return, found 17 hours ago
₹72,214
Return
found 17 hours ago
Select United flight, departing Sun, 20 Jul from Washington to St. Louis, returning Wed, 23 Jul, priced at ₹72,214 found 17 hours ago
United
Sun, 20 Jul - Wed, 23 Jul
DCA
Washington
STL
St. Louis
₹72,220 Return, found 17 hours ago
₹72,220
Return
found 17 hours ago
Select United flight, departing Sun, 20 Jul from Washington to St. Louis, returning Wed, 23 Jul, priced at ₹72,220 found 17 hours ago
United
Sun, 20 Jul - Wed, 23 Jul
DCA
Washington
STL
St. Louis
₹81,921 Return, found 17 hours ago
₹81,921
Return
found 17 hours ago
Select United flight, departing Sun, 20 Jul from Washington to St. Louis, returning Wed, 23 Jul, priced at ₹81,921 found 17 hours ago

Find the cheapest month to fly from Washington (DCA) to St. Louis (STL)

August is typically the cheapest month to fly

From ₹10,210 - ₹47,924 per traveller.

Graph displaying average flight prices per month

Flight from Washington to St. Louis route information
Origin airport
Ronald Reagan Washington National
Destination airport
Lambert-St. Louis Intl.
Airlines serving
American Airlines, Delta, United
Return price
₹68,349
Distance
1147 km
Average flight time
2 hours 22 mins

Frequently asked questions

How much is a flight from Ronald Reagan Washington National Airport (DCA) to STL?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price advertised for a round-trip journey between Ronald Reagan Washington National Airport (DCA) and Lambert-St. Louis Intl. Airport (STL) was ₹68,349. Fares this good don't last forever, so make sure you book yours ASAP. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from DCA to Lambert Field?
Each airline has its own terms and conditions. If you decide to cancel your trip, visit our Customer Service Portal.
How do I find cheap flights from National Airport to Lambert Field that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Ronald Reagan Washington National Airport (DCA) to Lambert Field flights, you'll see a "no change fees" filter for you to select.
How far is the flight from National Airport to St. Louis Lambert International Airport?
It's just 1,150 kilometres between Arlington and St. Louis. Chances are you'll spend more time travelling to and from the airport than actually flying!
Which airlines fly direct from DCA to Lambert-St. Louis Intl. Airport (STL)?
Southwest Airlines (WN) is a popular option. It operates 117 flights between Ronald Reagan Washington National Airport (DCA) and St. Louis Lambert International Airport each month. After more options? Check out the fares with American Airlines (AA). This carrier offers 108 flights every month between these destinations.
Are DCA to Lambert Field flight tickets cheaper when they're purchased at the last minute?
It is possible to get amazing last-minute deals from DCA to Lambert Field, but it can also be hit-or-miss. As many airlines release prices up to a year in advance, it's worthwhile keeping an eye on fares early and being ready to pounce when you spot a good bargain. Expedia compares carrier prices and updates flight deals all the time, so you can feel confident knowing you're always getting the latest offers.

Explore a world of travel with Expedia

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₹35,862.00