$85 Cheap Flights from St. Louis (STL) to Washington (DCA)

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

Prices were available within the past 7 days and start at $85 for one-way flights and $179 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, Aug 27 - Fri, Sep 6
STL
St. Louis
DCA
Washington
$179 Roundtrip, found 5 hours ago
$179
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Tue, Aug 27 from St. Louis to Washington, returning Fri, Sep 6, priced at $179 found 5 hours ago
American Airlines
Wed, Jul 3 - Fri, Jul 5
STL
St. Louis
DCA
Washington
$182 Roundtrip, found 2 days ago
$182
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Jul 3 from St. Louis to Washington, returning Fri, Jul 5, priced at $182 found 2 days ago
United
Wed, Jul 3 - Fri, Jul 5
STL
St. Louis
DCA
Washington
$188 Roundtrip, found 2 days ago
$188
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jul 3 from St. Louis to Washington, returning Fri, Jul 5, priced at $188 found 2 days ago
Delta
Tue, Jul 2 - Thu, Jul 4
STL
St. Louis
DCA
Washington
$188 Roundtrip, found 1 day ago
$188
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Jul 2 from St. Louis to Washington, returning Thu, Jul 4, priced at $188 found 1 day ago
American Airlines
Mon, Jul 1 - Mon, Jul 8
STL
St. Louis
DCA
Washington
$189 Roundtrip, just found
$189
Roundtrip
just found
Select American Airlines flight, departing Mon, Jul 1 from St. Louis to Washington, returning Mon, Jul 8, priced at $189 just found
United
Wed, Jul 3 - Fri, Jul 5
STL
St. Louis
DCA
Washington
$191 Roundtrip, found 2 days ago
$191
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jul 3 from St. Louis to Washington, returning Fri, Jul 5, priced at $191 found 2 days ago
Frontier Airlines
Tue, Aug 27 - Fri, Sep 6
STL
St. Louis
DCA
Washington
$194 Roundtrip, found 5 hours ago
$194
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Tue, Aug 27 from St. Louis to Washington, returning Fri, Sep 6, priced at $194 found 5 hours ago
Delta
Wed, Aug 28 - Sun, Sep 1
STL
St. Louis
DCA
Washington
$198 Roundtrip, found 6 hours ago
$198
Roundtrip
found 6 hours ago
Select Delta flight, departing Wed, Aug 28 from St. Louis to Washington, returning Sun, Sep 1, priced at $198 found 6 hours ago
American Airlines
Tue, Aug 27 - Fri, Sep 6
STL
St. Louis
DCA
Washington
$199 Roundtrip, found 5 hours ago
$199
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Tue, Aug 27 from St. Louis to Washington, returning Fri, Sep 6, priced at $199 found 5 hours ago
Delta
Mon, Jul 1 - Mon, Jul 8
STL
St. Louis
DCA
Washington
$202 Roundtrip, just found
$202
Roundtrip
just found
Select Delta flight, departing Mon, Jul 1 from St. Louis to Washington, returning Mon, Jul 8, priced at $202 just found
Flights from St. Louis (STL) to Washington (DCA)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Ronald Reagan Washington National
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, United
Roundtrip price
$179
Distance
716 mi

St. Louis to Washington Flights

Whether you’re looking for a grand adventure or just want to get away for a last-minute break, flights from St. Louis to Washington offer the perfect respite. Not only does exploring Washington provide the chance to make some magical memories, dip into delectable dishes, and tour the local landmarks, but the cheap airfare means you won’t bust your budget. So no matter whether your ideal itinerary involves flying one way, non-stop, or round trip, you’re bound to find flights that match your schedule on Expedia, and at prices that won’t shock your wallet.

Bagging a cheap flight from St. Louis to Washington may mean more dollars to spend on for one-of-a-kind souvenirs when you arrive, but it doesn’t mean you have to skimp on your travel experience, as Expedia offers a sizzling selection of cheap airlines that’ll put you in your happy place on their planes, whether that’s getting lost in a hair-raising airport thriller, dreaming on the passing landscape over a glass of bubbly, or jotting down your vacation bucket list at 38,000 feet. There’s also bound to be plenty of opportunities to snap a few photos of the high life that will make your friends green with envy. After all, enjoying the journey is part of the fun.

With so many affordable flights and so many wonderful adventures awaiting you, there’s no reason to put off booking a fantastic flight from STL to DCA today. So don’t leave it to the last minute to make your dream trip a reality: pack your bags with your go-to travel accessories, put together your list of must-see attractions and can’t-miss activities, and get ready to broaden your horizons – with Expedia, the wonders of Washington are only a plane trip away. Book your travel arrangements with us today!

If you would like to book flights to Washington more flexibly many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Washington is $85 now!

Frequently asked questions

How much is a one-way flight from Lambert Field to Ronald Reagan Washington National Airport (DCA)?
Book your next trip with Expedia and you could bag one-way St. Louis flights to Washington from $94. This was the cheapest fare found for this particular journey leaving within the next three months — an Delta flight, setting off from Lambert-St. Louis Intl. Airport (STL) on July 1 2024 and arriving at National Airport. This price was last updated on May 31 2024 and has not changed since. Eager to land your own bargain? Wonderful offers are only a few clicks away.
How long does it take to fly from Lambert-St. Louis Intl. Airport (STL) to DCA?
American Airlines has a direct flight taking off from St. Louis Lambert International Airport at 6:01PM and reaching National Airport at 8:59PM — a total flight time of 1 hour and 58 minutes. Book a seat, pack a few things to keep you amused and the time will pass by quickly.
Is it cheaper to buy a plane ticket from St. Louis Lambert International Airport to National Airport last minute?
When it comes to booking your flights, it’s always better to be prepared. While it may be possible to pick up a last-minute deal on a Lambert-St. Louis Intl. Airport (STL) to Ronald Reagan Washington National Airport (DCA) flight, prices usually don’t get cheaper as the date of departure nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to book a domestic flight is between 28 – 35 days ahead. For international flights it’s three to four months.
What is the cheapest airline flying from STL to DCA in the next 90 days?
Based on airfares found on Expedia with a departure date within the next 90 days, Delta is the cheapest airline flying from St. Louis to Washington. The fare for this journey starts at $94. This flight leaves Lambert-St. Louis Intl. Airport (STL) on July 1 2024 and touches down at Ronald Reagan Washington National Airport (DCA). The price was updated on May 31 2024 and has not changed since.
What's the cheapest price for a flight from Lambert Field to DCA next month?
With a one-way flight from St. Louis to Washington on offer for just $86, you’ll have more dough to spare for awesome adventures. This airfare was found after looking at all available flights on Expedia within the next 30 days. This particular service jets out from Lambert Field on June 4 2024, lands at National Airport and is with Frontier Airlines. This price was last updated on May 23 2024 and has not changed since.
What airline has the least delays from Lambert-St. Louis Intl. Airport (STL) to Ronald Reagan Washington National Airport (DCA)?
Head off with American Airlines from STL to Ronald Reagan Washington National Airport (DCA) and land at the time printed on your boarding pass. This carrier has the best performance on this route, with an 100% on-time score. If your flight experiences a delay, the Expedia App is the ideal way to stay in the loop. Download it and receive real-time trip updates, from flight delays to gate changes and the carousel number to collect your luggage.
Can I find cheap nonstop flights from Lambert Field to National Airport in the next three months?
The best price we can find for a roundtrip nonstop flight from St. Louis to Washington in the next 90 days is $179. This price is based on all available flights on Expedia with a departure date in the next three months. This airfare is for a flight via American Airlines setting off from STL on June 15 2024 and landing at DCA, with a return journey on June 19 2024. Pricing details were last updated on May 23 2024.To track down nonstop cheap flights departing from Lambert-St. Louis Intl. Airport (STL) to DCA, use our filters after you press the search button. Simply click “Nonstop” under “Filter by” on the left-hand side of the page to review the options. Your results will be arranged from the lowest price, so you can see the cheapest nonstop fares first. You can also check out ticket prices for nearby days by clicking “Flexible dates” on the same page.
What airports do you fly into for Arlington from Central United States?
Ronald Reagan Washington National Airport (DCA), Washington Dulles Intl. Airport (IAD) and Baltimore Washington Intl. Thurgood Marshall Airport (BWI) are your choices when traveling from Central United States to Arlington. Approximately 4 mi southeast of the heart of Arlington, Ronald Reagan Washington National Airport (DCA) is the city’s major hub. Take into account things like flight departure and arrival times and the distance to your hotel before choosing an airport. White House and Washington Monument are a couple of terrific attractions to put on your itinerary when you get to your destination.
What are the most popular departure times for flights from St. Louis Lambert International Airport to National Airport?
For American Airlines flights jetting from Lambert-St. Louis Intl. Airport (STL) to National Airport, the most popular departure times are between 6:00 AM - 7:00 AM. If you want to avoid those frustrating delays, fly in the morning. This way you’re likely to avoid the heavy air traffic that builds up around airports in the afternoon and evening.
Can I change the date of my flight from STL to National Airport?
Plans don’t always work out, so Expedia is here to help make amending your journey as easy as possible. To start, find your Lambert Field to National Airport itinerary through the Expedia Trips portal and check the fare conditions and rules regarding changes. If you purchased your airfare in the last 24 hours, some carriers will allow you to cancel for free and organize new flights. If you booked more than 24 hours ago, connect with us via our Customer Service portal so we can assist you further.
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