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Cheap flights from Washington, D.C. Reagan-National Airport to St. Louis from $49

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Reagan-National Airport to St. Louis departing on 5/7. 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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Cheap Washington, D.C. Reagan-National Airport to St. Louis (DCA to STL) flight deals and tips

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

Best Price Found

$49

Fastest flight time

2h 10m

Direct flights

Every day

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Washington, D.C. Reagan-National Airport in the past 72 hours is $49. The best round-trip flight deal from Washington, D.C. Reagan-National Airport to St. Louis found on momondo in the last 72 hours is $110.
The fastest flight from Washington, D.C. Reagan-National Airport to St. Louis takes 2h 10m
Direct flights go from Washington, D.C. Reagan-National Airport to St. Louis every day.
There is 1 airport near St. Louis: Lambert-St Louis (STL)

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

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 Washington, D.C. Reagan-National Airport to St. Louis?

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

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

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

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

At noon. Washington, D.C. Reagan-National Airport to St. Louis flights are approximately 11% more expensive in the afternoon than at noon

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

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

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

42 days before. The cheapest time to buy a flight from Washington, D.C. Reagan-National Airport to St. Louis is approximately 42 days to departure

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

6 flights are operational weekly from Washington, D.C. Reagan-National Airport to St. Louis as of April 2024. The most popular departure time for this route is 2:00PM, with 52% of flights per day taking off in the afternoon.

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

47 flights are operational weekly from Washington, D.C. Reagan-National Airport to St. Louis 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 Washington, D.C. Reagan-National Airport to St. Louis flights?

You could potentially save up to 29% on your flight if you consider stops on a Washington, D.C. Reagan-National Airport to St. Louis flight.

When you’re planning your trip from Washington, D.C. to St. Louis, the most popular airport-to-airport route is Washington, D.C. Reagan-National Airport to Lambert-St Louis Airport. When traveling from Washington, D.C., it is helpful to have an alternative airport to fly into when you land in St. Louis. Good options for arrival airports in St. Louis, you can try Springfield Capital Airport (in Springfield) or Marion Williamson County Airport (in Marion). In April, $129 is typically the cheapest round trip price you’ll find from Washington, D.C. to St. Louis which you can find when you fly DCA — STL.

Washington, D.C. Reagan-National Airport (DCA) to Lambert-St Louis Airport (STL)$129
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Washington, D.C. Reagan-National Airport (DCA) to Springfield Capital Airport (SPI)$388
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Washington, D.C. Reagan-National Airport (DCA) to Marion Williamson County Airport (MWA)$563
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Easily compare round-trip flights from Washington, D.C. Reagan-National Airport to St. Louis

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 Washington, D.C. Reagan-National Airport to St. Louis by changing tabs
Frontier
May 1
DCA12:50 pmWashington, D.C. Reagan-National
22h 48m
1 stop
STL10:38 amLambert-St Louis
May 3
STL5:35 pmLambert-St Louis
17h 25m
1 stop
DCA12:00 pmWashington, D.C. Reagan-National
American Airlines
Jul 1
DCA8:00 pmWashington, D.C. Reagan-National
2h 28m
STL9:28 pmLambert-St Louis
Jul 5
STL6:10 amLambert-St Louis
2h 01m
DCA9:11 amWashington, D.C. Reagan-National
Delta
Jul 1
DCA9:00 amWashington, D.C. Reagan-National
6h 57m
1 stop
STL2:57 pmLambert-St Louis
Jul 5
STL3:10 pmLambert-St Louis
6h 23m
1 stop
DCA10:33 pmWashington, D.C. Reagan-National
Frontier
May 14
DCA7:00 amWashington, D.C. Reagan-National
9h 50m
1 stop
STL3:50 pmLambert-St Louis
May 16
STL11:06 pmLambert-St Louis
21h 53m
1 stop
DCA9:59 pmWashington, D.C. Reagan-National
United Airlines
May 22
DCA12:00 pmWashington, D.C. Reagan-National
4h 46m
1 stop
STL3:46 pmLambert-St Louis
May 27
STL6:08 amLambert-St Louis
4h 50m
1 stop
DCA11:58 amWashington, D.C. Reagan-National
Frontier
May 4
DCA6:51 pmWashington, D.C. Reagan-National
20h 38m
1 stop
STL2:29 pmLambert-St Louis
May 11
STL8:04 pmLambert-St Louis
14h 56m
1 stop
DCA12:00 pmWashington, D.C. Reagan-National

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

If you're looking for one-way flights from Washington, D.C. Reagan-National Airport to St. Louis, view some of our deals below provided by American Airlines, Delta and Frontier
Frontier
May 7
DCA7:00 amWashington, D.C. Reagan-National
9h 50m
1 stop
STL3:50 pmLambert-St Louis
American Airlines
May 30
DCA2:19 pmWashington, D.C. Reagan-National
2h 16m
STL3:35 pmLambert-St Louis
Delta
May 30
DCA6:00 amWashington, D.C. Reagan-National
5h 05m
1 stop
STL10:05 amLambert-St Louis

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

Find and compare round-trip flight prices for your last-minute flight from Washington, D.C. Reagan-National Airport to St. Louis
Frontier
Apr 24
DCA6:51 pmWashington, D.C. Reagan-National
16h 47m
1 stop
STL10:38 amLambert-St Louis
Apr 28
STL3:29 pmLambert-St Louis
19h 31m
1 stop
DCA12:00 pmWashington, D.C. Reagan-National
American Airlines
Apr 25
DCA7:51 pmWashington, D.C. Reagan-National
2h 25m
STL9:16 pmLambert-St Louis
Apr 29
STL8:46 amLambert-St Louis
2h 07m
DCA11:53 amWashington, D.C. Reagan-National
Frontier
Apr 24
DCA7:00 amWashington, D.C. Reagan-National
28h 38m
1 stop
STL10:38 amLambert-St Louis
Apr 28
STL3:29 pmLambert-St Louis
19h 31m
1 stop
DCA12:00 pmWashington, D.C. Reagan-National
Southwest
Apr 23
DCA2:50 pmWashington, D.C. Reagan-National
2h 10m
STL4:00 pmLambert-St Louis
Apr 26
STL7:00 pmLambert-St Louis
1h 55m
DCA9:55 pmWashington, D.C. Reagan-National
Frontier
Apr 26
DCA7:00 amWashington, D.C. Reagan-National
27h 47m
1 stop
STL9:47 amLambert-St Louis
Apr 28
STL3:29 pmLambert-St Louis
19h 31m
1 stop
DCA12:00 pmWashington, D.C. Reagan-National
Frontier
Apr 21
DCA7:00 amWashington, D.C. Reagan-National
8h 29m
1 stop
STL2:29 pmLambert-St Louis
Apr 24
STL8:04 pmLambert-St Louis
14h 56m
1 stop
DCA12:00 pmWashington, D.C. Reagan-National

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

Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $104Free CancellationRating
6.3
4,175 reviews
Search Frontier flights
American AirlinesPriceFrom $183Free CancellationRating
7.3
14,952 reviews
Search American Airlines flights
United AirlinesPriceFrom $218Free CancellationRating
7.4
11,360 reviews
Search United Airlines flights
DeltaPriceFrom $230Free CancellationRating
8.0
11,123 reviews
Search Delta flights
  • American Airlines Flights From Washington, D.C. Reagan-National Airport to St. Louis

    American Airlines flies from Washington, D.C. Reagan-National Airport to St. Louis around 21 times per week, with 14,952 momondo users rating the airline 7.3/10. The cheapest American Airlines deal from Washington, D.C. Reagan-National Airport to St. Louis in the last 72 hours was $183 (round-trip), much lower than the average airfare cost of $345 for American Airlines flights on this route.


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

Our best Frontier deals on Washington, D.C. Reagan-National Airport to St. Louis flight tickets
Frontier
May 1
DCA12:50 pmWashington, D.C. Reagan-National
22h 48m
1 stop
STL10:38 amLambert-St Louis
May 3
STL5:35 pmLambert-St Louis
17h 25m
1 stop
DCA12:00 pmWashington, D.C. Reagan-National
Frontier
May 14
DCA7:00 amWashington, D.C. Reagan-National
9h 50m
1 stop
STL3:50 pmLambert-St Louis
May 16
STL11:06 pmLambert-St Louis
21h 53m
1 stop
DCA9:59 pmWashington, D.C. Reagan-National
Frontier
May 4
DCA6:51 pmWashington, D.C. Reagan-National
20h 38m
1 stop
STL2:29 pmLambert-St Louis
May 11
STL8:04 pmLambert-St Louis
14h 56m
1 stop
DCA12:00 pmWashington, D.C. Reagan-National

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

Our best American Airlines deals on Washington, D.C. Reagan-National Airport to St. Louis flight tickets
American Airlines
Jul 1
DCA8:00 pmWashington, D.C. Reagan-National
2h 28m
STL9:28 pmLambert-St Louis
Jul 5
STL6:10 amLambert-St Louis
2h 01m
DCA9:11 amWashington, D.C. Reagan-National
American Airlines
May 18
DCA8:00 pmWashington, D.C. Reagan-National
4h 22m
1 stop
STL11:22 pmLambert-St Louis
May 22
STL6:16 amLambert-St Louis
1h 59m
DCA9:15 amWashington, D.C. Reagan-National
American Airlines
May 23
DCA11:49 amWashington, D.C. Reagan-National
4h 43m
1 stop
STL3:32 pmLambert-St Louis
May 29
STL5:04 pmLambert-St Louis
1h 56m
DCA8:00 pmWashington, D.C. Reagan-National

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

    Washington, D.C. Reagan-National and Lambert-St Louis are 708.3 mi apart from one another. In terms of flight time, this usually takes a little over 2h 10m.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.


Alternative routes for Washington, D.C. Reagan-National Airport to St. Louis

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Washington, D.C. to St. Louis Flights
Fastest flight time2h 15m
Cheapest price$137
Washington, D.C. to Kansas City Flights
Fastest flight time5h 02m
Cheapest price$160
Washington, D.C. to Springfield Flights
Fastest flight time4h 27m
Cheapest price$218
Washington, D.C. to Columbia, Missouri Flights
Fastest flight time4h 43m
Cheapest price$520
Washington, D.C. to Joplin Flights
Fastest flight time7h 18m
Cheapest price$451
Washington, D.C. to Branson Flights
Fastest flight time7h 59m
Cheapest price$341
Washington, D.C. to Fort Leonard Wood Flights
Fastest flight time31h 26m
Cheapest price$340
Washington, D.C. to Kirksville Flights
Fastest flight time6h 40m
Cheapest price$387

Why use momondo?

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

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

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

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

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington, D.C. to St. Louis.

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

Price alerts on flights to St. Louis from Washington, D.C. 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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