Cheap Flights From Lambert-St. Louis Intl. (STL) To Ronald Reagan Washington National (DCA)

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

The cheapest flights to Ronald Reagan Washington National found within the past 7 days were CA $1,017 round trip and CA $592 one way. Prices and availability subject to change. Additional terms may apply.

Thu, Aug. 28 - Mon, Sep. 1
STL
St. Louis
DCA
Washington
CA $1,017 Roundtrip, found 4 days ago
CA $1,017
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Aug. 28 from St. Louis to Washington, returning Mon, Sep. 1, priced at CA $1,017 found 4 days ago
Thu, Aug. 28 - Mon, Sep. 1
STL
St. Louis
DCA
Washington
CA $1,047 Roundtrip, found 4 days ago
CA $1,047
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Aug. 28 from St. Louis to Washington, returning Mon, Sep. 1, priced at CA $1,047 found 4 days ago
Thu, Aug. 28 - Mon, Sep. 1
STL
St. Louis
DCA
Washington
CA $1,103 Roundtrip, found 4 days ago
CA $1,103
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Aug. 28 from St. Louis to Washington, returning Mon, Sep. 1, priced at CA $1,103 found 4 days ago
Thu, Aug. 28 - Mon, Sep. 1
STL
St. Louis
DCA
Washington
CA $1,112 Roundtrip, found 4 days ago
CA $1,112
Roundtrip
found 4 days ago
Select American Airlines flight, departing Thu, Aug. 28 from St. Louis to Washington, returning Mon, Sep. 1, priced at CA $1,112 found 4 days ago
Thu, Aug. 28 - Mon, Sep. 1
STL
St. Louis
DCA
Washington
CA $1,185 Roundtrip, found 4 days ago
CA $1,185
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Aug. 28 from St. Louis to Washington, returning Mon, Sep. 1, priced at CA $1,185 found 4 days ago
Thu, Aug. 28 - Mon, Sep. 1
STL
St. Louis
DCA
Washington
CA $1,193 Roundtrip, found 4 days ago
CA $1,193
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Aug. 28 from St. Louis to Washington, returning Mon, Sep. 1, priced at CA $1,193 found 4 days ago
Thu, Aug. 28 - Mon, Sep. 1
STL
St. Louis
DCA
Washington
CA $1,228 Roundtrip, found 4 days ago
CA $1,228
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Aug. 28 from St. Louis to Washington, returning Mon, Sep. 1, priced at CA $1,228 found 4 days ago
Thu, Aug. 28 - Mon, Sep. 1
STL
St. Louis
DCA
Washington
CA $1,248 Roundtrip, found 4 days ago
CA $1,248
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Aug. 28 from St. Louis to Washington, returning Mon, Sep. 1, priced at CA $1,248 found 4 days ago
Thu, Aug. 28 - Mon, Sep. 1
STL
St. Louis
DCA
Washington
CA $1,270 Roundtrip, found 4 days ago
CA $1,270
Roundtrip
found 4 days ago
Select American Airlines flight, departing Thu, Aug. 28 from St. Louis to Washington, returning Mon, Sep. 1, priced at CA $1,270 found 4 days ago
Thu, Aug. 28 - Mon, Sep. 1
STL
St. Louis
DCA
Washington
CA $1,303 Roundtrip, found 4 days ago
CA $1,303
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Aug. 28 from St. Louis to Washington, returning Mon, Sep. 1, priced at CA $1,303 found 4 days ago
Thu, Aug. 28 - Mon, Sep. 1
STL
St. Louis
DCA
Washington
CA $1,356 Roundtrip, found 4 days ago
CA $1,356
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Aug. 28 from St. Louis to Washington, returning Mon, Sep. 1, priced at CA $1,356 found 4 days ago
Thu, Aug. 28 - Mon, Sep. 1
STL
St. Louis
DCA
Washington
CA $1,361 Roundtrip, found 4 days ago
CA $1,361
Roundtrip
found 4 days ago
Select American Airlines flight, departing Thu, Aug. 28 from St. Louis to Washington, returning Mon, Sep. 1, priced at CA $1,361 found 4 days ago
Thu, Aug. 28 - Mon, Sep. 1
STL
St. Louis
DCA
Washington
CA $1,400 Roundtrip, found 4 days ago
CA $1,400
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Aug. 28 from St. Louis to Washington, returning Mon, Sep. 1, priced at CA $1,400 found 4 days ago
Thu, Aug. 28 - Mon, Sep. 1
STL
St. Louis
DCA
Washington
CA $1,445 Roundtrip, found 4 days ago
CA $1,445
Roundtrip
found 4 days ago
Select American Airlines flight, departing Thu, Aug. 28 from St. Louis to Washington, returning Mon, Sep. 1, priced at CA $1,445 found 4 days ago
Thu, Aug. 28 - Mon, Sep. 1
STL
St. Louis
DCA
Washington
CA $1,455 Roundtrip, found 4 days ago
CA $1,455
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Aug. 28 from St. Louis to Washington, returning Mon, Sep. 1, priced at CA $1,455 found 4 days ago

Frequently asked questions

Are there direct flights from STL to National Airport?
Start your adventure in the calmest way possible and fly straight to Ronald Reagan Washington National Airport (DCA) from St. Louis Lambert International Airport. American Airlines and Southwest Airlines are among the airlines that offer nonstop services on this flight path.
What airlines fly from Lambert-St. Louis Intl. Airport (STL) to National Airport?
If you're flying to Arlington from St. Louis, there are a few airlines offering direct flights. One of the most well-known is American Airlines (AA), which offers 86 flights on this route each month. If you'd like more options, look up the fares on offer from Southwest Airlines (WN). This airline has 60 flights every month. Between the two, we're sure you'll find the flight to suit your needs.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.

Popular Flight Routes from St. Louis (STL)

Travelers at STL love to visit these top cities. Roam to the top destinations from St. Louis (STL) today with the cheap prices from Travelocity!

Popular Flight Routes from Washington (DCA)

Travelers at DCA love to visit these top cities. Roam to the top destinations from Washington(DCA) today with the cheap prices from Travelocity!

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.