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Cheap flights from Washington, D.C. Reagan-National Airport to St. Louis 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 Washington, D.C. Reagan-National Airport to St. Louis 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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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
DCA6:51 pmWashington, D.C. Reagan-National
16h 47m
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
May 23
DCA2:19 pmWashington, D.C. Reagan-National
2h 16m
STL3:35 pmLambert-St Louis
May 26
STL10:30 amLambert-St Louis
5h 19m
1 stop
DCA4:49 pmWashington, D.C. Reagan-National
Delta
May 28
DCA6:10 amWashington, D.C. Reagan-National
4h 09m
1 stop
STL9:19 amLambert-St Louis
May 28
STL6:30 pmLambert-St Louis
4h 27m
1 stop
DCA11:57 pmWashington, D.C. Reagan-National
American Airlines
May 13
DCA7:45 pmWashington, D.C. Reagan-National
2h 15m
STL9:00 pmLambert-St Louis
May 14
STL5:04 pmLambert-St Louis
1h 56m
DCA8:00 pmWashington, D.C. Reagan-National
Frontier
May 3
DCA6:51 pmWashington, D.C. Reagan-National
15h 56m
1 stop
STL9:47 amLambert-St Louis
May 5
STL3:29 pmLambert-St Louis
19h 31m
1 stop
DCA12:00 pmWashington, D.C. Reagan-National
American Airlines
May 22
DCA8:25 amWashington, D.C. Reagan-National
5h 45m
1 stop
STL1:10 pmLambert-St Louis
May 25
STL11:40 amLambert-St Louis
6h 20m
1 stop
DCA7:00 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
American Airlines
May 21
DCA2:19 pmWashington, D.C. Reagan-National
2h 16m
STL3:35 pmLambert-St Louis
Frontier
May 8
DCA12:50 pmWashington, D.C. Reagan-National
22h 48m
1 stop
STL10:38 amLambert-St Louis
Delta
May 18
DCA7:24 pmWashington, D.C. Reagan-National
5h 16m
1 stop
STL11:40 pmLambert-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
May 1
DCA6:51 pmWashington, D.C. Reagan-National
16h 47m
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
May 2
DCA7:51 pmWashington, D.C. Reagan-National
2h 25m
STL9:16 pmLambert-St Louis
May 6
STL5:04 pmLambert-St Louis
1h 56m
DCA8:00 pmWashington, D.C. Reagan-National
Frontier
Apr 27
DCA6:51 pmWashington, D.C. Reagan-National
20h 38m
1 stop
STL2:29 pmLambert-St Louis
May 4
STL8:04 pmLambert-St Louis
14h 56m
1 stop
DCA12:00 pmWashington, D.C. Reagan-National
Delta
May 1
DCA6:00 amWashington, D.C. Reagan-National
4h 20m
1 stop
STL9:20 amLambert-St Louis
May 4
STL8:55 amLambert-St Louis
6h 31m
1 stop
DCA4:26 pmWashington, D.C. Reagan-National
Frontier
Apr 28
DCA7:00 amWashington, D.C. Reagan-National
8h 29m
1 stop
STL2:29 pmLambert-St Louis
May 1
STL8:04 pmLambert-St Louis
24h 55m
1 stop
DCA9:59 pmWashington, D.C. Reagan-National
American Airlines
May 2
DCA12:30 pmWashington, D.C. Reagan-National
4h 13m
1 stop
STL3:43 pmLambert-St Louis
May 6
STL5:04 pmLambert-St Louis
1h 56m
DCA8:00 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
4,142 reviews
Search Frontier flights
American AirlinesPriceFrom $182Free CancellationRating
7.3
14,914 reviews
Search American Airlines flights
United AirlinesPriceFrom $218Free CancellationRating
7.4
11,289 reviews
Search United Airlines flights
DeltaPriceFrom $230Free CancellationRating
8.0
11,028 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 14,914 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 $182 (round-trip), much lower than the average airfare cost of $345 for American Airlines flights on this route.


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
May 23
DCA2:19 pmWashington, D.C. Reagan-National
2h 16m
STL3:35 pmLambert-St Louis
May 26
STL10:30 amLambert-St Louis
5h 19m
1 stop
DCA4:49 pmWashington, D.C. Reagan-National
American Airlines
May 13
DCA7:45 pmWashington, D.C. Reagan-National
2h 15m
STL9:00 pmLambert-St Louis
May 14
STL5:04 pmLambert-St Louis
1h 56m
DCA8:00 pmWashington, D.C. Reagan-National
American Airlines
May 22
DCA8:25 amWashington, D.C. Reagan-National
5h 45m
1 stop
STL1:10 pmLambert-St Louis
May 25
STL11:40 amLambert-St Louis
6h 20m
1 stop
DCA7:00 pmWashington, D.C. Reagan-National

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
DCA6:51 pmWashington, D.C. Reagan-National
16h 47m
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 3
DCA6:51 pmWashington, D.C. Reagan-National
15h 56m
1 stop
STL9:47 amLambert-St Louis
May 5
STL3:29 pmLambert-St Louis
19h 31m
1 stop
DCA12:00 pmWashington, D.C. Reagan-National
Frontier
May 17
DCA6:57 pmWashington, D.C. Reagan-National
15h 28m
1 stop
STL9:25 amLambert-St Louis
May 20
STL8:04 pmLambert-St Louis
14h 59m
1 stop
DCA12:03 pmWashington, D.C. Reagan-National

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 12% 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 7:00AM, with 42% 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 20% on your flight if you consider stops on a Washington, D.C. Reagan-National Airport to St. Louis flight.

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

$80

Fastest flight time

2h 15m

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 $80. 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 $197.
The fastest flight from Washington, D.C. Reagan-National Airport to St. Louis takes 2h 15m
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 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 15m.

  • 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.


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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