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

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

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Frequently asked questions

How long does it take to fly from National Airport to STL?
Book a ticket with American Airlines and you'll be in the air for roughly 2 hours and 15 minutes. This popular airline operates a direct flight that departs at 7:45PM from Ronald Reagan Washington National Airport (DCA) and touches down at Lambert Field at 9:00PM. Expedia has unbeatable flight deals, so find out what's on offer on this route today.
Is it cheaper to buy a plane ticket from DCA to STL last minute?
Booking your trip from National Airport to Lambert-St. Louis Intl. Airport (STL) last minute could save you a nice sum if you luck out and find an awesome deal. However, airfares usually don't get cheaper closer to the departure date. If you wait, flights could also be booked solid or the best seats taken (we hope you like the middle seat!). If you want to be on the safe side, book well ahead of when you want to leave. Keep in mind that some of the best deals can be found up to 12 months in advance. If your favorite carrier hasn't released tickets yet, check back regularly as deals are updated on Expedia all the time.
What airports do you fly into for St. Louis from Washington?
From Washington, you can get to St. Louis through Lambert-St. Louis Intl. Airport (STL), Spirit of St. Louis Airport (SUS) and St. Louis Downtown Airport (CPS). Research which hub is the best option for you before you make a decision. If you decide on Lambert-St. Louis Intl. Airport (STL), it's approximately 19 kilometers northwest of the center of the city. Use the dough you save when booking your fare with Expedia to explore the city's top attractions, such as Busch Stadium and Gateway Arch.
What are the most popular departure times for flights from National Airport to Lambert Field?
The most popular departure times for flights from DCA to Lambert-St. Louis Intl. Airport (STL) are between 7:00 PM - 8:00 PM on American Airlines. Our suggestion is to head out in the morning. The earlier you do, the better your chances of arriving on time with less air traffic in the skies.
Can I change the date of my flight from National Airport to Lambert Field?
You can quickly and easily make changes to your DCA to Lambert-St. Louis Intl. Airport (STL) ticket through the Expedia Trips portal. But before amending dates or times, read over the fare rules in your itinerary to see what the airline will let you do and if charges apply. Some carriers have a change fee per person, in addition to any difference in airfares. But if you booked in the last 24 hours, you may be able to cancel for free and book new flights. You can also browse our Customer Service portal for more information and to connect with our Virtual Agent.

Travel information

Origin airport
Ronald Reagan Washington National
Destination airport
Lambert-St. Louis Intl.
Distance
1147 km
Average flight time
1 hour 36 mins

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