CA $116 Cheap Flights from Washington (DCA) to St. Louis (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 CA $116 for one-way flights and CA $401 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat., Jun. 22 - Mon., Jul. 8
DCA
Washington
STL
St. Louis
CA $401 Roundtrip, found 6 days ago
CA $401
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat., Jun. 22 from Washington to St. Louis, returning Mon., Jul. 8, priced at CA $401 found 6 days ago
American Airlines
Sat., Jun. 22 - Mon., Jul. 8
DCA
Washington
STL
St. Louis
CA $415 Roundtrip, found 6 days ago
CA $415
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat., Jun. 22 from Washington to St. Louis, returning Mon., Jul. 8, priced at CA $415 found 6 days ago
American Airlines
Sat., Jun. 22 - Mon., Jul. 8
DCA
Washington
STL
St. Louis
CA $428 Roundtrip, found 6 days ago
CA $428
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat., Jun. 22 from Washington to St. Louis, returning Mon., Jul. 8, priced at CA $428 found 6 days ago
Delta
Sat., Jun. 22 - Mon., Jul. 8
DCA
Washington
STL
St. Louis
CA $434 Roundtrip, found 6 days ago
CA $434
Roundtrip
found 6 days ago
Select Delta flight, departing Sat., Jun. 22 from Washington to St. Louis, returning Mon., Jul. 8, priced at CA $434 found 6 days ago
American Airlines
Sat., Jun. 22 - Mon., Jul. 8
DCA
Washington
STL
St. Louis
CA $436 Roundtrip, found 6 days ago
CA $436
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat., Jun. 22 from Washington to St. Louis, returning Mon., Jul. 8, priced at CA $436 found 6 days ago
Delta
Sat., Jun. 22 - Mon., Jul. 8
DCA
Washington
STL
St. Louis
CA $443 Roundtrip, found 6 days ago
CA $443
Roundtrip
found 6 days ago
Select Delta flight, departing Sat., Jun. 22 from Washington to St. Louis, returning Mon., Jul. 8, priced at CA $443 found 6 days ago
American Airlines
Sat., Jun. 22 - Mon., Jul. 8
DCA
Washington
STL
St. Louis
CA $449 Roundtrip, found 6 days ago
CA $449
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat., Jun. 22 from Washington to St. Louis, returning Mon., Jul. 8, priced at CA $449 found 6 days ago
Flight from Washington to St. Louis (DCA - STL) route information
Origin airport
Ronald Reagan Washington National
Destination airport
Lambert-St. Louis Intl.
Roundtrip price
CA $400
Distance
1147 km

Washington to St. Louis Flights

Ready for an adventure? Thought so! Prepare to see the sights when you book your trip from Washington to St. Louis with Expedia.ca. Whether you’re visiting for business or pleasure, we know how important it is to bring home travel stories. Maybe your tales will include the best dinner of your life, or the weirdest street art you saw in the city, or the concert that turned you into a fan of a new band. Whatever it is, your new favourite anecdote is right around the corner. Book your trip from DCA to STL and begin your journey!

Getting a cheap deal on your trip sets the tone for the perfect holiday. And with Expedia.ca, you know you can travel from Washington to St. Louis on the cheap, with enough money left over for a stellar time in the city. That could mean more tours with the kids, more concerts with the spouse, more dessert amongst co-workers, or even front row seats to a sports game if you’re travelling solo. It’s your holiday! Make it great.

Travelling shouldn’t cost an arm and a leg before you even get to relax on the plane’s armrests. Count on Expedia.ca to get you the best discounts on flights from DCA to STL. And remember this: You can also save big when you bundle. Add a hotel or car rental deal to your flight and witness those savings add up. Hey, more money for more souvenirs, right? Right! Pack your bags and we’ll see you on the route.

Combine your St. Louis flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from with Expedia Canada. Use us as your top travel destination and have the confidence that you’re getting a bargain!

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 CA $401. 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 kilometers between Arlington and St. Louis. Chances are you’ll spend more time traveling 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.
Washington nearby Airports

Washington

Washington Dulles Intl. to St. Louis
CA $442.19

Baltimore

Baltimore Washington Intl. Thurgood Marshall to St. Louis
CA $445.60
*Available to Expedia members.