HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Missouri

$64+ 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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — STL
feb. 1 — feb. 81
dom. 2/1
dom. 2/8
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Reagan-National to Missouri with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 enero 2, 2026.

This American Airlines deal was found by Cheapflights users on 12/31. 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.
mié. 12/3110:15 amDCA - MCI
1 stop9h 11mAmerican Airlines
vie. 1/3010:58 amMCI - DCA
1 stop7h 38mAmerican Airlines
Deal found 12/31$494
This American Airlines deal was found by Cheapflights users on 12/31. 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.
mié. 12/3110:15 amDCA - STL
1 stop10h 15mAmerican Airlines
mié. 1/78:13 amSTL - DCA
1 stop8h 34mAmerican Airlines
Deal found 12/31$508
This American Airlines deal was found by Cheapflights users on 12/31. 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.
mié. 12/3110:15 amDCA - MCI
1 stop9h 11mAmerican Airlines
jue. 1/2910:58 amMCI - DCA
1 stop7h 38mAmerican Airlines
Deal found 12/31$526
This American Airlines deal was found by Cheapflights users on 12/30. 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.
mié. 12/318:30 amDCA - STL
1 stop8h 30mAmerican Airlines
dom. 1/45:00 amSTL - DCA
1 stop8h 24mAmerican Airlines
Deal found 12/30$596
This Southwest deal was found by Cheapflights users on 12/31. 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. 12/313:20 pmDCA - MCI
2 stops7h 10mSouthwest
jue. 1/293:30 pmMCI - DCA
1 stop4h 00mSouthwest
Deal found 12/31$637
This Southwest deal was found by Cheapflights users on 12/31. 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. 12/313:20 pmDCA - MCI
2 stops7h 10mSouthwest
vie. 1/3010:55 amMCI - DCA
1 stop6h 05mSouthwest
Deal found 12/31$681
This American Airlines deal was found by Cheapflights users on 12/30. 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.
mié. 12/315:00 amDCA - STL
1 stop9h 14mAmerican Airlines
sáb. 1/35:00 amSTL - DCA
1 stop8h 24mAmerican Airlines
Deal found 12/30$701
This Delta deal was found by Cheapflights users on 12/30. 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.
mié. 12/315:00 pmDCA - STL
1 stop24h 59mDelta
sáb. 1/35:40 pmSTL - DCA
1 stop16h 15mDelta
Deal found 12/30$702
This Southwest deal was found by Cheapflights users on 12/31. 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. 12/316:10 amDCA - STL
1 stop7h 55mSouthwest
mié. 1/710:15 amSTL - DCA
2 stops6h 45mSouthwest
Deal found 12/31$742
This Southwest deal was found by Cheapflights users on 12/30. 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. 12/312:45 pmDCA - STL
Nonstop2h 20mSouthwest
sáb. 1/38:55 amSTL - DCA
Nonstop1h 55mSouthwest
Deal found 12/30$743
This Kiwi.com deal was found by Cheapflights users on 12/30. 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. 12/318:00 amDCA - MCI
1 stop12h 50mFrontier
vie. 1/28:45 pmMCI - DCA
1 stop15h 16mFrontier
Deal found 12/30$935
This United Airlines deal was found by Cheapflights users on 12/30. 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.
mié. 12/316:00 pmDCA - MCI
1 stop4h 50mUnited Airlines
vie. 1/26:00 amMCI - DCA
1 stop4h 58mUnited Airlines
Deal found 12/30$974

Find 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 enero 2, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$258
(United Airlines)

One-way from

$64
(Frontier)

Popular in

December

Cheapest in

August

Average price

$349

Good round-trip deal

$344 or less

Good one-way deal

$171 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Lambert-St Louis flights.
Search Deals
From Washington, D.C. Reagan-National to Missouri
Search Deals
One-way flight from Washington, D.C. Reagan-National to Missouri
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($31 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Washington, D.C. Reagan-National to Missouri.
Search Deals
Price to beat on a one-way flight from Washington, D.C. Reagan-National to Missouri.
Search Deals

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 enero 2, 2026.
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.Columbia

DCA - COU

DCACOU

Washington, D.C. Reagan-National

vie. 1/23

6:30 am-10:42 am

1 stop5h 12m

Columbia Regional

dom. 1/25

11:17 am-7:13 pm

1 stop6h 56m

$258

Washington, D.C.Columbia

DCA - COU

DCACOU

Washington, D.C. Reagan-National

mié. 1/21

5:00 pm-9:37 pm

1 stop5h 37m

Columbia Regional

dom. 1/25

3:10 pm-10:48 pm

1 stop6h 38m

$258

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

sáb. 1/31

12:35 pm-4:55 pm

1 stop5h 20m

Lambert-St Louis

sáb. 2/7

7:40 am-4:15 pm

2 stops7h 35m

$260

Washington, D.C.Springfield

DCA - SGF

DCASGF

Washington, D.C. Reagan-National

sáb. 4/25

10:10 am-3:01 pm

1 stop5h 51m

Springfield-Branson

lun. 5/4

3:46 pm-9:34 pm

1 stop4h 48m

$269

Washington, D.C.Springfield

DCA - SGF

DCASGF

Washington, D.C. Reagan-National

sáb. 1/31

6:00 am-12:11 pm

1 stop7h 11m

Springfield-Branson

mar. 2/3

12:01 pm-7:32 pm

1 stop6h 31m

$269

Washington, D.C.Springfield

DCA - SGF

DCASGF

Washington, D.C. Reagan-National

sáb. 4/25

6:00 am-11:01 am

1 stop6h 01m

Springfield-Branson

sáb. 5/2

4:00 pm-11:33 pm

1 stop6h 33m

$269

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

mié. 2/18

9:00 am-2:47 pm

1 stop6h 47m

Lambert-St Louis

mié. 2/25

1:13 pm-6:48 pm

1 stop4h 35m

$271

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

mié. 2/18

6:05 am-9:32 am

1 stop4h 27m

Lambert-St Louis

sáb. 2/21

5:50 pm-10:57 pm

1 stop4h 07m

$271

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

jue. 2/5

11:45 am-3:55 pm

1 stop5h 10m

Lambert-St Louis

mar. 2/10

8:20 am-11:15 am

Nonstop1h 55m

$275

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

sáb. 2/21

7:00 am-11:02 am

1 stop5h 02m

Lambert-St Louis

sáb. 2/21

5:50 pm-10:57 pm

1 stop4h 07m

$275

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/1

Showing 1-10 of 53 results
1
2
3
...
6

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 $264). 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 enero 2, 2026.

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 7% on your trip compared to booking a flight in the afternoon.

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 27, 2025.

Travelers seeking maximum savings on their Washington, D.C. Reagan-National Airport to Missouri flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday at noon 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 enero 2, 2026.
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
4,254 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,254 reviews
Southwest
8.0
Very good
4,254 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,021 reviews
Southwest
8.0
Very good
4,254 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,132 reviews
Southwest
8.0
Very good
4,254 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,074 reviews
Southwest
8.0
Very good
4,254 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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?

    United Airlines, Southwest, and Delta can get you from Washington, D.C. Reagan-National Airport to Missouri in just under 5h 12m. Your travel time can differ by up to 39m. Airlines will cover a distance of 816 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 - Lambert-St Louis. You may also consider Washington, D.C. Reagan-National - Kansas City 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: Republic Airways (71%), Southwest (70%), American Airlines (62%).

  • 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 $147. While the most popular route (Washington, D.C. Reagan-National - Lambert-St Louis) can be booked for $163 on average, our data indicates $345 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 $264). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Reagan-National to Missouri

See prices for flight routes from nearby airports that may be better suited for you.
Baltimore to Fort Lauderdale flights
Reagan-National to Miami flights
Dulles Intl to Miami flights
Dulles Intl to Las Vegas flights
Dulles Intl to Orlando flights
Dulles Intl to Fort Lauderdale flights
Baltimore to Las Vegas flights
Reagan-National to Orlando flights
Reagan-National to Fort Lauderdale flights
Baltimore to Miami flights
Reagan-National to Las Vegas flights
Baltimore to Orlando flights
Reagan-National to Los Angeles flights
Baltimore to Dallas/Fort Worth flights
Dulles Intl to Tampa flights
Baltimore to Los Angeles flights
Reagan-National to Tampa flights
Dulles Intl to Dallas/Fort Worth flights
Baltimore to Atlanta flights
Dulles Intl to Los Angeles flights
Dulles Intl to Sky Harbor Intl flights
Baltimore to Denver flights
Reagan-National to Seattle flights
Reagan-National to Dallas/Fort Worth flights
Dulles Intl to New Orleans flights
Dulles Intl to Salt Lake City flights
Baltimore to Tampa flights
Dulles Intl to Seattle flights
Baltimore to New Orleans flights
Reagan-National to Atlanta flights
Reagan-National to Hobby flights
Dulles Intl to Denver flights
Baltimore to Sky Harbor Intl flights
Reagan-National to San Francisco flights
Reagan-National to New Orleans flights
Baltimore to West Palm Beach flights
Dulles Intl to Atlanta flights
Dulles Intl to Hobby flights
Baltimore to O'Hare Intl flights
Dulles Intl to San Francisco flights
Reagan-National to Salt Lake City flights
Baltimore to Salt Lake City flights
Reagan-National to Sky Harbor Intl flights
Baltimore to San Francisco flights
Reagan-National to West Palm Beach flights
Dulles Intl to Honolulu flights
Reagan-National to Denver flights
Reagan-National to O'Hare Intl flights
Dulles Intl to O'Hare Intl flights
Baltimore to Fort Myers flights

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 enero 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$155Average$346FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$170Average$370FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$187Average$351FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$223Average$421FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.