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$55+ Cheap flights from Reagan-National (DCA) to Missouri

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 1/24. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — STL
dic. 20 — dic. 271
sáb. 12/20
sáb. 12/27
1 adult, Economy
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Cheap flight deals from Reagan-National to Missouri

Keep the following information in mind while searching for Reagan-National to Missouri flight deals. Data was last updated noviembre 20, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$240
(Kiwi.com)

One-way from

$55
(Priceline)

Popular in

December

Cheapest in

August

Average price

$376

Good round-trip deal

$311 or less

Good one-way deal

$148 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Lambert-St Louis flights.
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From Washington, D.C. Reagan-National to Missouri
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One-way flight from Washington, D.C. Reagan-National to Missouri
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Highest demand for flights based on searches. 11% potential increase in price ($43 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Washington, D.C. Reagan-National to Missouri.
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Price to beat on a one-way flight from Washington, D.C. Reagan-National to Missouri.
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Find flight deals from Reagan-National to Missouri

Cheapest flights from Reagan-National to Missouri
Explore the most affordable flight options available from Reagan-National to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on noviembre 20, 2025.

This American Airlines deal was found by Cheapflights users on 11/19. 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.
sáb. 12/139:41 amDCA - STL
1 stop7h 38mAmerican Airlines
sáb. 1/179:54 amSTL - DCA
Nonstop2h 05mAmerican Airlines
Deal found 11/19$245
This Delta deal was found by Cheapflights users on 11/19. 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.
sáb. 12/138:59 amDCA - SGF
1 stop7h 24mDelta
mar. 12/166:00 amSGF - DCA
1 stop4h 37mDelta
Deal found 11/19$249
This Kiwi.com deal was found by Cheapflights users on 11/18. 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.
mié. 12/106:00 pmDCA - STL
2 stops18h 07mFrontier
vie. 12/127:43 pmSTL - DCA
1 stop16h 23mFrontier
Deal found 11/18$252
This Delta deal was found by Cheapflights users on 11/18. 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.
sáb. 12/136:06 amDCA - STL
1 stop4h 44mDelta
sáb. 1/179:59 amSTL - DCA
1 stop4h 01mDelta
Deal found 11/18$255
This Kiwi.com deal was found by Cheapflights users on 11/18. 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.
lun. 12/88:00 amDCA - MCI
1 stop12h 50mFrontier
dom. 12/218:45 pmMCI - DCA
1 stop24h 14mFrontier
Deal found 11/18$260
This Southwest deal was found by Cheapflights users on 11/20. 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.
mar. 12/93:20 pmDCA - STL
1 stop4h 10mSouthwest
sáb. 12/137:55 amSTL - DCA
2 stops6h 45mSouthwest
Deal found 11/20$260
This Southwest deal was found by Cheapflights users on 11/18. 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.
mar. 12/1612:25 pmDCA - STL
Nonstop2h 20mSouthwest
mié. 12/173:20 pmSTL - DCA
Nonstop1h 55mSouthwest
Deal found 11/18$263
This American Airlines deal was found by Cheapflights users on 11/19. 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.
jue. 12/49:41 amDCA - SGF
1 stop4h 50mAmerican Airlines
jue. 12/116:35 amSGF - DCA
1 stop6h 49mAmerican Airlines
Deal found 11/19$264
This Southwest deal was found by Cheapflights users on 11/18. 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.
mié. 12/106:10 pmDCA - STL
Nonstop2h 25mSouthwest
jue. 12/111:10 pmSTL - DCA
Nonstop2h 00mSouthwest
Deal found 11/18$265
This United Airlines deal was found by Cheapflights users on 11/19. 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.
vie. 12/51:00 pmDCA - COU
1 stop5h 40mUnited Airlines
mar. 12/98:00 amCOU - DCA
1 stop6h 38mUnited Airlines
Deal found 11/19$268
This Mytrip deal was found by Cheapflights users on 11/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/216:00 pmDCA - STL
1 stop17h 02mFrontier
lun. 12/87:43 pmSTL - DCA
1 stop16h 23mFrontier
Deal found 11/18$268
This American Airlines deal was found by Cheapflights users on 11/19. 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.
sáb. 12/62:36 pmDCA - MCI
Nonstop2h 55mAmerican Airlines
mar. 12/93:33 pmMCI - DCA
Nonstop2h 34mAmerican Airlines
Deal found 11/19$269

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National to Missouri 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 noviembre 20, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Missouri that are best for you.

Fly from

Reagan-National

Fly to

Missouri

Route

Depart

Return

Price

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

mar. 12/9

3:20 pm-6:30 pm

1 stop4h 10m

Lambert-St Louis

sáb. 12/13

3:30 pm-6:25 pm

Nonstop1h 55m

$245

Washington, D.C.Springfield

DCA - SGF

DCASGF

Washington, D.C. Reagan-National

sáb. 12/13

8:59 am-3:23 pm

1 stop7h 24m

Springfield-Branson

mar. 12/16

6:00 am-11:37 am

1 stop4h 37m

$249

Washington, D.C.Springfield

DCA - SGF

DCASGF

Washington, D.C. Reagan-National

jue. 1/8

6:00 am-11:22 am

1 stop6h 22m

Springfield-Branson

lun. 1/12

5:00 pm-10:33 pm

1 stop4h 33m

$249

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

jue. 1/15

6:00 am-12:33 pm

1 stop7h 33m

Lambert-St Louis

lun. 1/19

1:18 pm-9:23 pm

1 stop7h 05m

$259

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

sáb. 1/17

12:45 pm-8:10 pm

2 stops8h 25m

Lambert-St Louis

lun. 1/19

3:55 pm-9:45 pm

1 stop4h 50m

$262

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

jue. 2/12

7:30 am-1:20 pm

1 stop6h 50m

Lambert-St Louis

mar. 2/17

9:50 am-6:00 pm

2 stops7h 10m

$262

Washington, D.C.Springfield

DCA - SGF

DCASGF

Washington, D.C. Reagan-National

jue. 12/4

9:41 am-1:31 pm

1 stop4h 50m

Springfield-Branson

jue. 12/11

6:35 am-2:24 pm

1 stop6h 49m

$264

Washington, D.C.Columbia

DCA - COU

DCACOU

Washington, D.C. Reagan-National

vie. 12/5

1:00 pm-5:40 pm

1 stop5h 40m

Columbia Regional

mar. 12/9

8:00 am-3:38 pm

1 stop6h 38m

$268

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

sáb. 12/13

9:36 am-1:53 pm

1 stop5h 17m

Lambert-St Louis

mar. 12/16

9:30 am-3:00 pm

1 stop4h 30m

$269

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

dom. 1/18

7:00 am-11:05 am

1 stop5h 05m

Lambert-St Louis

lun. 1/19

7:10 am-2:30 pm

1 stop6h 20m

$271

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/18

Showing 1-10 of 60 results
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Best time to book a flight from Reagan-National to Missouri

Have a flexible travel schedule? Discover the best time to fly to Missouri from Reagan-National 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 Washington, D.C. Reagan-National Airport to Missouri

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

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Missouri (average of $154). Flying from Washington, D.C. Reagan-National Airport to Missouri in December is currently the most expensive (average of $256). 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 DCA to MO?

Find hourly flight availability from Reagan-National to Missouri. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated noviembre 20, 2025.

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. Reagan-National Airport to Missouri in the evening. If you’re flexible enough to do this you can expect to save up to 49% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from Washington, D.C. Reagan-National Airport to Missouri?

Use this chart to determine the cheapest time to fly round-trip from Reagan-National to Missouri. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Washington, D.C. Reagan-National Airport to Missouri flight should consider departing on Monday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Missouri

Get insights into the airlines that provide service to Missouri. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Missouri. Reviews last updated noviembre 20, 2025.
Read through reviews of airlines operating flights from Washington, D.C. Reagan-National Airport to Missouri, such as Southwest, Delta, and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,251 reviews

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,251 reviews
Southwest
8.0
Very good
4,251 reviews

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
8,002 reviews
Southwest
8.0
Very good
4,251 reviews

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
9,028 reviews
Southwest
8.0
Very good
4,251 reviews

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,047 reviews
Southwest
8.0
Very good
4,251 reviews

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Reagan-National to Missouri. 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 Washington, D.C. Reagan-National Airport to Missouri?

    Southwest, Delta, and American Airlines can get you from Washington, D.C. Reagan-National Airport to Missouri in just under 4h 10m. Your travel time can differ by up to 3h 14m. Airlines will cover a distance of 717 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    The cheapest airlines for a one-way flight from Washington, D.C. Reagan-National Airport to Missouri are Frontier ($55), American Airlines ($118), and Southwest ($120).

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

    The most popular route from Washington, D.C. Reagan-National Airport to Missouri is Washington, D.C. Reagan-National - Kansas City. You may also consider Washington, D.C. Reagan-National - Lambert-St Louis or Washington, D.C. Reagan-National - Springfield-Branson.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Washington, D.C. Reagan-National Airport to Missouri on time: Envoy Air (92%), Republic Airways (84%), Southwest (77%).

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

    Looking at all options, your cheapest flight can be booked for $114. While the most popular route (Washington, D.C. Reagan-National - Kansas City) can be booked for $237 on average, our data indicates $281 when flying from Washington, D.C. Reagan-National Airport to Missouri.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Reagan-National to Missouri 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 Washington, D.C. Reagan-National Airport to Missouri?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Missouri (average of $154). Flying from Washington, D.C. Reagan-National Airport to Missouri in December is currently the most expensive (average of $256). 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

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Alternative routes for Reagan-National to Missouri

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Reagan-National to Missouri

Discover the top 4 airlines that operate flights from Reagan-National to Missouri. 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 noviembre 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$155Average$378FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$172Average$376FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$188Average$351FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$223Average$421FlexibilityNo cancel feeOn-time69%

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