HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Missouri

$68+ 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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — STL
Mar 18 — Mar 251
Wed 3/18
Wed 3/25
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 February 16, 2026.

This Trip.com deal was found by Cheapflights users on 2/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/242:00 pm
DCA
-
MCI
1 stop26h 44m
Frontier
Fri 2/278:33 pm
MCI
-
DCA
1 stop15h 27m
Frontier
Deal found 2/14$268
This American Airlines deal was found by Cheapflights users on 2/13. 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 8/85:00 am
DCA
-
SGF
1 stop5h 34m
American Airlines
Sat 8/156:18 pm
SGF
-
DCA
1 stop4h 41m
American Airlines
Deal found 2/13$269
This Expedia deal was found by Cheapflights users on 2/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/147:00 am
DCA
-
MCI
1 stop7h 30m
Frontier
Sun 5/172:15 pm
MCI
-
DCA
1 stop21h 45m
Frontier
Deal found 2/12$270
This Southwest deal was found by Cheapflights users on 2/16. 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.
Thu 3/198:00 am
DCA
-
STL
Nonstop2h 30m
Southwest
Mon 3/234:45 pm
STL
-
DCA
1 stop5h 45m
Southwest
Deal found 2/16$270
This Expedia deal was found by Cheapflights users on 2/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/272:00 pm
DCA
-
MCI
1 stop6h 48m
Frontier
Sun 3/11:44 pm
MCI
-
DCA
1 stop22h 16m
Frontier
Deal found 2/13$271
This American Airlines deal was found by Cheapflights users on 2/12. 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 4/98:00 am
DCA
-
STL
Nonstop2h 26m
American Airlines
Fri 4/106:05 am
STL
-
DCA
Nonstop2h 10m
American Airlines
Deal found 2/12$271
This Southwest deal was found by Cheapflights users on 2/13. 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 3/146:50 pm
DCA
-
STL
1 stop5h 05m
Southwest
Sat 3/219:35 pm
STL
-
DCA
1 stop9h 40m
Southwest
Deal found 2/13$272
This American Airlines deal was found by Cheapflights users on 2/12. 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 3/166:45 am
DCA
-
MCI
1 stop5h 35m
American Airlines
Wed 3/184:22 pm
MCI
-
DCA
Nonstop2h 38m
American Airlines
Deal found 2/12$273
This Southwest deal was found by Cheapflights users on 2/13. 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.
Thu 4/28:00 am
DCA
-
STL
Nonstop2h 30m
Southwest
Tue 4/712:40 pm
STL
-
DCA
2 stops7h 05m
Southwest
Deal found 2/13$273
This American Airlines deal was found by Cheapflights users on 2/12. 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.
Wed 4/18:53 pm
DCA
-
MCI
Nonstop3h 07m
American Airlines
Wed 4/83:26 pm
MCI
-
DCA
Nonstop2h 42m
American Airlines
Deal found 2/12$274
This American Airlines deal was found by Cheapflights users on 2/14. 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 3/166:37 pm
DCA
-
MCI
1 stop6h 35m
American Airlines
Mon 3/236:00 am
MCI
-
DCA
Nonstop2h 29m
American Airlines
Deal found 2/14$275
This American Airlines deal was found by Cheapflights users on 2/14. 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 2/216:45 am
DCA
-
STL
1 stop7h 36m
American Airlines
Sat 2/286:06 am
STL
-
DCA
Nonstop2h 06m
American Airlines
Deal found 2/14$275

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 February 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$268
(Trip.com)

One-way from

$68
(Southwest)

Popular in

December

Cheapest in

August

Average price

$369

Good round-trip deal

$303 or less

Good one-way deal

$154 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 ($30 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 February 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 February 16, 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.Springfield

DCA - SGF

DCASGF

Washington, D.C. Reagan-National

Thu 5/28

7:59 am-2:35 pm

1 stop7h 36m

Springfield-Branson

Sat 6/6

4:00 pm-9:45 pm

1 stop4h 45m

$269

Washington, D.C.Springfield

DCA - SGF

DCASGF

Washington, D.C. Reagan-National

Sat 8/8

5:00 am-9:34 am

1 stop5h 34m

Springfield-Branson

Sat 8/15

6:18 pm-11:59 pm

1 stop4h 41m

$269

Washington, D.C.Springfield

DCA - SGF

DCASGF

Washington, D.C. Reagan-National

Tue 5/19

7:59 am-2:35 pm

1 stop7h 36m

Springfield-Branson

Sat 5/23

4:00 pm-9:45 pm

1 stop4h 45m

$269

Washington, D.C.Kansas City

DCA - MCI

DCAMCI

Washington, D.C. Reagan-National

Thu 5/14

7:00 am-1:30 pm

1 stop7h 30m

Kansas City

Sun 5/17

2:15 pm-1:00 pm

1 stop21h 45m

$270

Washington, D.C.Kansas City

DCA - MCI

DCAMCI

Washington, D.C. Reagan-National

Tue 3/17

6:55 am-11:55 am

1 stop6h 00m

Kansas City

Tue 3/24

11:50 am-3:05 pm

Nonstop2h 15m

$271

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Sat 3/14

8:05 am-9:35 am

Nonstop2h 30m

Lambert-St Louis

Sat 3/21

9:35 pm-8:15 am

1 stop9h 40m

$274

Washington, D.C.Kansas City

DCA - MCI

DCAMCI

Washington, D.C. Reagan-National

Tue 3/17

7:30 am-1:15 pm

2 stops6h 45m

Kansas City

Tue 3/17

6:35 pm-9:55 pm

Nonstop2h 20m

$276

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Wed 2/25

8:00 am-3:53 pm

1 stop8h 53m

Lambert-St Louis

Sat 2/28

2:51 pm-1:15 pm

1 stop21h 24m

$277

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Thu 4/2

3:35 pm-6:55 pm

1 stop4h 20m

Lambert-St Louis

Tue 4/7

12:40 pm-8:45 pm

2 stops7h 05m

$279

Washington, D.C.Kansas City

DCA - MCI

DCAMCI

Washington, D.C. Reagan-National

Tue 3/17

8:20 am-12:19 pm

1 stop4h 59m

Kansas City

Wed 3/18

9:15 am-3:32 pm

1 stop5h 17m

$281

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/15

Showing 1-10 of 60 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 $149). Flying from Washington, D.C. Reagan-National Airport to Missouri in March is currently the most expensive (average of $267). 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 February 16, 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 at noon. If you’re flexible enough to do this you can expect to save up to 6% 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 February 7, 2026.

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.

Weekly flight availability from Washington, D.C. Reagan-National Airport to Missouri

Explore weekly flight availability from Reagan-National to Missouri. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated February 16, 2026.

The most flights from DCA to USMO are scheduled on a Monday (7 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (3 on average).

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 February 16, 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
4,285 reviews

Crew

8.6

Comfort

8.0

Boarding

8.1

Overall

8.0

Food

7.0

Entertainment

7.5

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
4,285 reviews
Southwest
8.0
Very good
4,285 reviews

Crew

8.6

Comfort

8.0

Boarding

8.1

Overall

8.0

Food

7.0

Entertainment

7.5

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
8,204 reviews
Southwest
8.0
Very good
4,285 reviews

Crew

8.6

Comfort

8.0

Boarding

8.1

Overall

8.0

Food

7.0

Entertainment

7.5

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
9,299 reviews
Southwest
8.0
Very good
4,285 reviews

Crew

8.6

Comfort

8.0

Boarding

8.1

Overall

8.0

Food

7.0

Entertainment

7.5

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
11,294 reviews
Southwest
8.0
Very good
4,285 reviews

Crew

8.6

Comfort

8.0

Boarding

8.1

Overall

8.0

Food

7.0

Entertainment

7.5

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?

    Delta, American Airlines, and Frontier can get you from Washington, D.C. Reagan-National Airport to Missouri in just under 5h 34m. Your travel time can differ by up to 2h 02m. Airlines will cover a distance of 895 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 ($50), Southwest ($89), and American Airlines ($98).

  • 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 (94%), Southwest (79%), American Airlines (78%).

  • 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 $128. While the most popular route (Washington, D.C. Reagan-National - Lambert-St Louis) can be booked for $177 on average, our data indicates $484 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 $149). Flying from Washington, D.C. Reagan-National Airport to Missouri in March is currently the most expensive (average of $267). 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.
Dulles Intl to Miami flights
Baltimore to Fort Lauderdale flights
Reagan-National to Miami flights
Baltimore to Miami flights
Dulles Intl to Orlando flights
Dulles Intl to Las Vegas flights
Dulles Intl to Fort Lauderdale flights
Dulles Intl to Dallas/Fort Worth flights
Dulles Intl to Los Angeles flights
Baltimore to Los Angeles flights
Baltimore to Orlando flights
Reagan-National to Los Angeles flights
Reagan-National to Orlando flights
Baltimore to Dallas/Fort Worth flights
Dulles Intl to Seattle flights
Baltimore to Las Vegas flights
Dulles Intl to Hobby flights
Dulles Intl to Tampa flights
Reagan-National to Fort Lauderdale flights
Dulles Intl to Sky Harbor Intl flights
Reagan-National to Hobby flights
Reagan-National to Las Vegas flights
Baltimore to Atlanta flights
Dulles Intl to Denver flights
Baltimore to O'Hare Intl flights
Baltimore to Tampa flights
Reagan-National to Seattle flights
Dulles Intl to San Francisco flights
Baltimore to Hobby flights
Reagan-National to Tampa flights
Reagan-National to O'Hare Intl flights
Baltimore to Denver flights
Dulles Intl to Atlanta flights
Reagan-National to Dallas/Fort Worth flights
Dulles Intl to New Orleans flights
Dulles Intl to George Bush Intcntl flights
Reagan-National to San Francisco flights
Baltimore to George Bush Intcntl flights
Reagan-National to George Bush Intcntl flights
Reagan-National to Atlanta flights
Baltimore to Sky Harbor Intl flights
Dulles Intl to O'Hare Intl flights
Baltimore to New Orleans flights
Baltimore to Boston flights
Baltimore to San Francisco flights
Reagan-National to Boston flights
Dulles Intl to Salt Lake City flights
Dulles Intl to Austin flights
Baltimore to Seattle flights
Reagan-National to Sky Harbor Intl 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 February 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$167Average$367FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$188Average$352FlexibilityNo cancel feeOn-time63%
DeltaCheapest$216Average$398FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$248Average$493FlexibilityNo 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.