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Reagan-National

$71+ Cheap flights from Missouri to Reagan-National (DCA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
STL — DCA
Apr 3 — Apr 101
Fri 4/3
Fri 4/10
1 adult, Economy
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Cheap flight deals from Missouri to Reagan-National

Cheapest flights from Missouri to Reagan-National
Explore the most affordable flight options available from Missouri to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 4, 2026.

This Southwest deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/251:20 pm
STL
-
DCA
Nonstop2h 00m
Southwest
Tue 3/311:00 pm
DCA
-
STL
2 stops7h 55m
Southwest
Deal found 3/3$250
This Kiwi.com deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/108:16 pm
STL
-
DCA
1 stop14h 46m
Frontier
Sun 4/127:00 am
DCA
-
STL
1 stop27h 48m
Frontier
Deal found 3/2$253
This Southwest deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/288:20 am
STL
-
DCA
Nonstop1h 55m
Southwest
Sat 4/411:45 am
DCA
-
STL
1 stop8h 10m
Southwest
Deal found 2/28$254
This Delta deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/249:41 am
STL
-
DCA
1 stop5h 45m
Delta
Tue 3/317:35 pm
DCA
-
STL
1 stop5h 23m
Delta
Deal found 2/27$255
This Southwest deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:40 pm
STL
-
DCA
Nonstop2h 00m
Southwest
Sat 5/28:00 am
DCA
-
STL
Nonstop2h 20m
Southwest
Deal found 2/28$256
This Southwest deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/45:10 am
STL
-
DCA
1 stop5h 00m
Southwest
Tue 4/79:55 am
DCA
-
STL
1 stop6h 10m
Southwest
Deal found 2/28$258
This United Airlines deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/298:00 am
COU
-
DCA
1 stop5h 14m
United Airlines
Mon 5/48:20 pm
DCA
-
COU
1 stop5h 28m
United Airlines
Deal found 3/3$258
This KAYAK deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/306:00 am
STL
-
DCA
Nonstop2h 12m
American Airlines
Fri 4/37:59 pm
DCA
-
STL
Nonstop2h 35m
American Airlines
Deal found 3/2$261
This American Airlines deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/46:00 am
STL
-
DCA
Nonstop2h 12m
American Airlines
Tue 4/78:41 pm
DCA
-
STL
Nonstop2h 26m
American Airlines
Deal found 2/28$263
This American Airlines deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/306:00 am
STL
-
DCA
Nonstop2h 12m
American Airlines
Tue 3/317:30 am
DCA
-
STL
Nonstop2h 36m
American Airlines
Deal found 2/27$265
This Kiwi.com deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/179:55 pm
STL
-
DCA
2 stops14h 05m
Frontier
Mon 4/208:00 am
DCA
-
STL
1 stop12h 32m
Frontier
Deal found 2/27$266
This American Airlines deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:05 pm
SGF
-
DCA
1 stop4h 52m
American Airlines
Sun 4/265:55 am
DCA
-
SGF
1 stop4h 56m
American Airlines
Deal found 2/27$269

Find flight deals from Missouri to Reagan-National

Keep the following information in mind while searching for Missouri to Reagan-National flight deals. Data was last updated March 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$250
(Southwest)

One-way from

$71
(Kiwi.com)

Popular in

February

Cheapest in

August

Average price

$363

Good round-trip deal

$297 or less

Good one-way deal

$168 or less
Provider with most accurate pricing for Lambert-St Louis-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Washington, D.C. (WAS) flights.
Search Deals
From Missouri to Washington, D.C. Reagan-National
Search Deals
One-way flight from Missouri to Washington, D.C. Reagan-National
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($76 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Missouri to Washington, D.C. Reagan-National.
Search Deals
Price to beat on a one-way flight from Missouri to Washington, D.C. Reagan-National.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Missouri to Reagan-National that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 4, 2026.
Use the filters below to find and compare flights from Missouri to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ColumbiaWashington, D.C.

COU - DCA

COUDCA

Columbia Regional

Tue 8/18

3:05 pm-8:43 pm

1 stop4h 38m

Washington, D.C. Reagan-National

Sat 8/22

10:30 am-2:30 pm

1 stop5h 00m

$258

ColumbiaWashington, D.C.

COU - DCA

COUDCA

Columbia Regional

Thu 5/14

5:00 am-10:59 am

1 stop4h 59m

Washington, D.C. Reagan-National

Sun 5/17

8:20 pm-12:48 am

1 stop5h 28m

$258

ColumbiaWashington, D.C.

COU - DCA

COUDCA

Columbia Regional

Wed 4/29

8:00 am-2:14 pm

1 stop5h 14m

Washington, D.C. Reagan-National

Mon 5/4

8:20 pm-12:48 am

1 stop5h 28m

$258

Kansas CityWashington, D.C.

MCI - DCA

MCIDCA

Kansas City

Tue 5/12

7:25 pm-10:45 pm

Nonstop2h 20m

Washington, D.C. Reagan-National

Mon 5/18

8:15 pm-10:10 pm

Nonstop2h 55m

$282

Kansas CityWashington, D.C.

MCI - DCA

MCIDCA

Kansas City

Mon 4/27

6:35 pm-9:55 pm

Nonstop2h 20m

Washington, D.C. Reagan-National

Wed 4/29

11:45 am-4:00 pm

1 stop5h 15m

$292

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

Mon 4/13

3:45 pm-6:45 pm

Nonstop2h 00m

Washington, D.C. Reagan-National

Mon 4/20

2:45 pm-4:05 pm

Nonstop2h 20m

$295

Kansas CityWashington, D.C.

MCI - DCA

MCIDCA

Kansas City

Sat 4/18

12:50 pm-4:15 pm

Nonstop2h 25m

Washington, D.C. Reagan-National

Mon 4/20

5:00 pm-11:50 pm

2 stops7h 50m

$297

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

Thu 4/9

1:20 pm-4:20 pm

Nonstop2h 00m

Washington, D.C. Reagan-National

Mon 4/13

3:35 pm-6:40 pm

1 stop4h 05m

$301

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

Wed 4/8

1:10 pm-4:10 pm

Nonstop2h 00m

Washington, D.C. Reagan-National

Sun 4/12

6:05 am-9:30 am

1 stop4h 25m

$304

Kansas CityWashington, D.C.

MCI - DCA

MCIDCA

Kansas City

Thu 5/7

10:45 am-6:59 pm

1 stop7h 14m

Washington, D.C. Reagan-National

Mon 5/11

5:50 pm-10:36 pm

1 stop5h 46m

$315

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/28

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Missouri to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from Missouri with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Missouri to Washington, D.C. Reagan-National Airport

What is the cheapest month to book a flight from Missouri to Washington, D.C. Reagan-National Airport?

Currently, July is the cheapest month in which you can book a flight from Missouri to Washington, D.C. Reagan-National Airport (average of $102). Flying from Missouri to Washington, D.C. Reagan-National Airport in June is currently the most expensive (average of $219). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MO to DCA?

Find hourly flight availability from Missouri to Reagan-National. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 4, 2026.

A simple way to save on the total cost of your ticket is to fly from Missouri to Washington, D.C. Reagan-National Airport in the evening. If you’re flexible enough to do this you can expect to save up to 23% on your trip compared to booking a flight at noon.

Related info for your journey

Find useful and relevant information for your journey from Missouri to Reagan-National. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Missouri to Washington, D.C. Reagan-National Airport?

    Airlines like United Airlines, American Airlines, and Southwest fly from Missouri to Washington, D.C. Reagan-National Airport in about 2h 20m. The time it takes to get you to your destination can typically vary by up to 2h 32m. There are 947 mi between Missouri and Washington, D.C. Reagan-National Airport. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Missouri to Washington, D.C. Reagan-National Airport one-way?

    $67 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Southwest and Delta, with prices starting from $89 and $136, respectively.

  • What are the most popular routes from Missouri to Washington, D.C. Reagan-National Airport?

    When deciding which route to take from Missouri to Washington, D.C. Reagan-National Airport consider Kansas City - Washington, D.C. Reagan-National, Lambert-St Louis - Washington, D.C. Reagan-National or Springfield-Branson - Washington, D.C. Reagan-National as they are the most popular.

  • What are the most reliable airlines from Missouri to Washington, D.C. Reagan-National Airport?

    No one likes to see their flight delayed. When booking a flight from Missouri to Washington, D.C. Reagan-National Airport consider choosing Southwest (70%), Republic Airways (70%) or American Airlines (66%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Missouri to Washington, D.C. Reagan-National Airport?

    While on average a flight from Missouri to Washington, D.C. Reagan-National Airport is generally $402, our data shows the cheapest flight currently is $102. When looking at the most popular route, (Kansas City - Washington, D.C. Reagan-National), you can expect to pay $231 for that flight.

  • Can I find deals for flights from Missouri to Reagan-National that include hotel bookings?

    Yes. In addition to deals on Missouri to Reagan-National flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Missouri to Reagan-National?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Missouri to Reagan-National.

  • Can I find deals for business class flights from Missouri to Reagan-National?

    Yes. Cheapflights offers flight deals from Missouri to Reagan-National by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Missouri to Washington, D.C. Reagan-National Airport?

    Currently, July is the cheapest month in which you can book a flight from Missouri to Washington, D.C. Reagan-National Airport (average of $102). Flying from Missouri to Washington, D.C. Reagan-National Airport in June is currently the most expensive (average of $219). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Washington, D.C. Reagan-National Airport?

Book flights to Washington, D.C. Reagan-National Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Arlington
Tysons
Owings Mills
Springfield
Silver Spring
Herndon
Hyattsville
Hanover
Laurel
Rockville
Upper Marlboro
Linthicum Heights
Fredericksburg
Largo
Bowie
Clinton
Towson
College Park

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Alternative routes for Missouri to Reagan-National

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to Dulles Intl flights
Los Angeles to Reagan-National flights
Dallas/Fort Worth to Baltimore flights
Atlanta to Baltimore flights
Boston to Dulles Intl flights
Los Angeles to Dulles Intl flights
Los Angeles to Baltimore flights
Boston to Baltimore flights
San Francisco to Reagan-National flights
O'Hare Intl to Reagan-National flights
Seattle to Reagan-National flights
Boston to Reagan-National flights
Atlanta to Dulles Intl flights
San Francisco to Dulles Intl flights
O'Hare Intl to Baltimore flights
Orlando to Dulles Intl flights
Seattle to Dulles Intl flights
Dallas/Fort Worth to Reagan-National flights
San Francisco to Baltimore flights
Atlanta to Reagan-National flights
O'Hare Intl to Dulles Intl flights
Hobby to Baltimore flights
Minneapolis to Reagan-National flights
Miami to Dulles Intl flights
Detroit to Dulles Intl flights
Tampa to Dulles Intl flights
Hobby to Dulles Intl flights
Miami to Reagan-National flights
Orlando to Reagan-National flights
Hobby to Reagan-National flights
Fort Lauderdale to Baltimore flights
Denver to Dulles Intl flights
Denver to Baltimore flights
Seattle to Baltimore flights
Tampa to Reagan-National flights
Denver to Reagan-National flights
Fort Lauderdale to Dulles Intl flights
Detroit to Reagan-National flights
Miami to Baltimore flights
Minneapolis to Dulles Intl flights
Minneapolis to Baltimore flights
Tampa to Baltimore flights
George Bush Intcntl to Dulles Intl flights
Austin to Dulles Intl flights
Orlando to Baltimore flights
LaGuardia to Reagan-National flights
Detroit to Baltimore flights
George Bush Intcntl to Reagan-National flights
Fort Lauderdale to Reagan-National flights
Sky Harbor Intl to Dulles Intl flights

Top 5 airlines flying from Missouri to Reagan-National

Discover the top 5 airlines that operate flights from Missouri to Reagan-National. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$98Average$229FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$149Average$422FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$197Average$338FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$238Average$401FlexibilityNo cancel feeOn-time69%
DeltaCheapest$248Average$393FlexibilityNo cancel feeOn-timeN/A

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