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Cheap flights from St. Louis to Washington, D.C. Reagan-National Airport from $80

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Washington, D.C. Reagan-National Airport departing on 5/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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mar. 4/30
mar. 5/7

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Easily compare round-trip flights from St. Louis to Washington, D.C. Reagan-National Airport

Below you can see the best fares for your round-trip flight route over the next six months. All fares were found on momondo this week. Browse the quickest and cheapest flights from St. Louis to Washington, D.C. Reagan-National Airport by changing tabs
American Airlines
May 21
STL5:04 pmLambert-St Louis
1h 56m
DCA8:00 pmWashington, D.C. Reagan-National
May 22
DCA2:19 pmWashington, D.C. Reagan-National
2h 16m
STL3:35 pmLambert-St Louis
Frontier
May 7
STL4:50 pmLambert-St Louis
18h 10m
1 stop
DCA12:00 pmWashington, D.C. Reagan-National
May 14
DCA6:51 pmWashington, D.C. Reagan-National
15h 56m
1 stop
STL9:47 amLambert-St Louis
United Airlines
May 21
STL6:30 amLambert-St Louis
5h 52m
1 stop
DCA1:22 pmWashington, D.C. Reagan-National
May 22
DCA6:00 amWashington, D.C. Reagan-National
5h 14m
1 stop
STL10:14 amLambert-St Louis
Delta
Jun 19
STL11:20 amLambert-St Louis
4h 04m
1 stop
DCA4:24 pmWashington, D.C. Reagan-National
Jun 25
DCA5:19 pmWashington, D.C. Reagan-National
4h 18m
1 stop
STL8:37 pmLambert-St Louis
Frontier
May 19
STL11:22 pmLambert-St Louis
11h 41m
1 stop
DCA12:03 pmWashington, D.C. Reagan-National
May 20
DCA6:57 pmWashington, D.C. Reagan-National
19h 12m
1 stop
STL1:09 pmLambert-St Louis
Frontier
May 13
STL8:04 pmLambert-St Louis
14h 56m
1 stop
DCA12:00 pmWashington, D.C. Reagan-National
May 14
DCA6:51 pmWashington, D.C. Reagan-National
15h 56m
1 stop
STL9:47 amLambert-St Louis

Find the cheapest one-way flights from St. Louis to Washington, D.C. Reagan-National Airport

If you're looking for one-way flights from St. Louis to Washington, D.C. Reagan-National Airport, view some of our deals below provided by American Airlines, Delta and Frontier
American Airlines
May 21
STL6:16 amLambert-St Louis
1h 59m
DCA9:15 amWashington, D.C. Reagan-National
Frontier
May 21
STL10:44 pmLambert-St Louis
22h 15m
1 stop
DCA9:59 pmWashington, D.C. Reagan-National
Delta
May 29
STL6:00 amLambert-St Louis
6h 02m
1 stop
DCA1:02 pmWashington, D.C. Reagan-National

Search last-minute flights to Washington, D.C. Reagan-National Airport from St. Louis

Find and compare round-trip flight prices for your last-minute flight from St. Louis to Washington, D.C. Reagan-National Airport
Frontier
May 7
STL4:50 pmLambert-St Louis
18h 10m
1 stop
DCA12:00 pmWashington, D.C. Reagan-National
May 14
DCA6:51 pmWashington, D.C. Reagan-National
15h 56m
1 stop
STL9:47 amLambert-St Louis
American Airlines
May 8
STL9:45 amLambert-St Louis
2h 10m
DCA12:55 pmWashington, D.C. Reagan-National
May 12
DCA2:19 pmWashington, D.C. Reagan-National
2h 16m
STL3:35 pmLambert-St Louis
Frontier
May 8
STL8:04 pmLambert-St Louis
14h 56m
1 stop
DCA12:00 pmWashington, D.C. Reagan-National
May 14
DCA6:51 pmWashington, D.C. Reagan-National
15h 56m
1 stop
STL9:47 amLambert-St Louis
Frontier
May 6
STL8:04 pmLambert-St Louis
14h 56m
1 stop
DCA12:00 pmWashington, D.C. Reagan-National
May 7
DCA6:51 pmWashington, D.C. Reagan-National
15h 56m
1 stop
STL9:47 amLambert-St Louis
Frontier
May 1
STL8:04 pmLambert-St Louis
24h 55m
1 stop
DCA9:59 pmWashington, D.C. Reagan-National
May 5
DCA12:50 pmWashington, D.C. Reagan-National
21h 57m
1 stop
STL9:47 amLambert-St Louis
Delta
May 1
STL1:01 pmLambert-St Louis
4h 13m
1 stop
DCA6:14 pmWashington, D.C. Reagan-National
May 4
DCA6:15 pmWashington, D.C. Reagan-National
4h 45m
1 stop
STL10:00 pmLambert-St Louis

Best airlines flying from St. Louis to Washington, D.C. Reagan-National Airport

Compare and see reviews for airlines that fly from St. Louis to Washington, D.C. Reagan-National Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $108Free CancellationRating
6.3
4,135 reviews
Search Frontier flights
DeltaPriceFrom $167Free CancellationRating
8.0
10,975 reviews
Search Delta flights
American AirlinesPriceFrom $191Free CancellationRating
7.3
14,898 reviews
Search American Airlines flights
United AirlinesPriceFrom $218Free CancellationRating
7.4
11,255 reviews
Search United Airlines flights
  • American Airlines Flights From St. Louis to Washington, D.C. Reagan-National Airport

    The lowest priced American Airlines flight from St. Louis to Washington, D.C. Reagan-National Airport from the last 72 hours was $191. Generally, American Airlines has 21 flights on this route every week with an average price of $302. American Airlines is rated 7.3/10 by our users.


Delta flights from St. Louis to Washington, D.C. Reagan-National Airport

Our best Delta deals on St. Louis to Washington, D.C. Reagan-National Airport flight tickets
Delta
Jun 19
STL11:20 amLambert-St Louis
4h 04m
1 stop
DCA4:24 pmWashington, D.C. Reagan-National
Jun 25
DCA5:19 pmWashington, D.C. Reagan-National
4h 18m
1 stop
STL8:37 pmLambert-St Louis
Delta
Jun 7
STL5:25 pmLambert-St Louis
4h 04m
1 stop
DCA10:29 pmWashington, D.C. Reagan-National
Jun 9
DCA6:00 amWashington, D.C. Reagan-National
4h 10m
1 stop
STL9:10 amLambert-St Louis
Delta
May 25
STL5:07 pmLambert-St Louis
5h 50m
1 stop
DCA11:57 pmWashington, D.C. Reagan-National
May 27
DCA6:00 amWashington, D.C. Reagan-National
5h 05m
1 stop
STL10:05 amLambert-St Louis

American Airlines flights from St. Louis to Washington, D.C. Reagan-National Airport

Our best American Airlines deals on St. Louis to Washington, D.C. Reagan-National Airport flight tickets
American Airlines
May 21
STL5:04 pmLambert-St Louis
1h 56m
DCA8:00 pmWashington, D.C. Reagan-National
May 22
DCA2:19 pmWashington, D.C. Reagan-National
2h 16m
STL3:35 pmLambert-St Louis
American Airlines
May 21
STL4:20 pmLambert-St Louis
6h 29m
1 stop
DCA11:49 pmWashington, D.C. Reagan-National
May 22
DCA2:19 pmWashington, D.C. Reagan-National
2h 16m
STL3:35 pmLambert-St Louis
American Airlines
Jul 1
STL5:42 pmLambert-St Louis
2h 01m
DCA8:43 pmWashington, D.C. Reagan-National
Jul 5
DCA8:00 pmWashington, D.C. Reagan-National
2h 29m
STL9:29 pmLambert-St Louis

How to get the cheapest flight ticket from St. Louis to Washington, D.C. Reagan-National Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly from St. Louis to Washington, D.C. Reagan-National Airport?

February. The cheapest time of year to fly to Washington, D.C. Reagan-National Airport from St. Louis is February. Most expensive is June

What is the cheapest day to depart St. Louis for Washington, D.C. Reagan-National Airport?

Saturday. The cheapest day of the week is typically Saturday. The most expensive is typically Sunday

When is the cheapest time to fly from St. Louis to Washington, D.C. Reagan-National Airport?

In the evening. St. Louis to Washington, D.C. Reagan-National Airport flights are approximately 21% more expensive in the afternoon than in the evening

What is the cheapest airline that flies to Washington, D.C. Reagan-National Airport from St. Louis?

Frontier. American Airlines, Delta, and Frontier are the most popular carriers operating from St. Louis to Washington, D.C. Reagan-National Airport

How far in advance should you book St. Louis to Washington, D.C. Reagan-National Airport flights?

45 days before. The cheapest time to buy a flight from St. Louis to Washington, D.C. Reagan-National Airport is approximately 45 days to departure

How many flights depart from St. Louis to Washington, D.C. Reagan-National Airport on average per day?

As of April 2024, there are 6 flights per week flying from St. Louis to Washington, D.C. Reagan-National Airport. The most common time of day flights depart is 7:00AM, with 52% of flights taking off at noon.

How many flights depart from St. Louis to Washington, D.C. Reagan-National Airport on average per week?

46 flights are operational weekly from St. Louis to Washington, D.C. Reagan-National Airport as of April 2024. The most popular departure day for this route is Monday, with 15% of flights per week taking off on this day.

Can stopping save me money on St. Louis to Washington, D.C. Reagan-National Airport flights?

No. A direct flight is the cheapest option for a flight between St. Louis to Washington, D.C. Reagan-National Airport.

Cheap St. Louis to Washington, D.C. Reagan-National Airport (STL to DCA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Washington, D.C. Reagan-National Airport

Best Price Found

$80

Fastest flight time

1h 56m

Direct flights

Every day
The best one-way flight to Washington, D.C. Reagan-National Airport from St. Louis in the past 72 hours is $80. The best round-trip flight deal from St. Louis to Washington, D.C. Reagan-National Airport found on momondo in the last 72 hours is $159.
The fastest flight from St. Louis to Washington, D.C. Reagan-National Airport takes 1h 56m
Direct flights go from St. Louis to Washington, D.C. Reagan-National Airport every day.

  • How far is Lambert-St Louis to Washington, D.C. Reagan-National by plane?

    Washington, D.C. Reagan-National is 708.3 mi away from Lambert-St Louis. In terms of flight time, this usually takes a little over 1h 56m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Washington, D.C. Reagan-National Airport?

    Prices for flights from Lambert-St Louis Airport to Washington, D.C. Reagan-National Airport were last updated today.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Washington, D.C. Reagan-National Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Washington, D.C. Reagan-National Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Washington, D.C. Reagan-National Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

    The necessary travel and health documents for your Washington, D.C. Reagan-National Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.


Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Washington, D.C.?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Washington, D.C.. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from St. Louis to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Washington, D.C. from St. Louis with this policy.

How can momondo help me find flights from St. Louis to Washington, D.C.?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington, D.C. from St. Louis.

I’m not ready to book a flight from St. Louis to Washington, D.C. right now. Can momondo alert me if prices change?

Price alerts on flights to Washington, D.C. from St. Louis are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


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