What is the cheapest airline that flies from Washington, D.C. Reagan-National to Missouri?

Southwest, Delta, and United Airlines are the most popular carriers operating from Washington, D.C. Reagan-National to Missouri

What airlines fly to Missouri?

Southwest, American Airlines and Delta are the top three most popular airlines that fly to Missouri from Washington, D.C. Reagan-National Airport according to our data. Southwest is the first choice among our users, with 54% of people opting to fly with this airline when traveling to Missouri. Keep in mind that there are 4 different airlines that fly to Missouri on a routine basis, so you have a few additional options to choose from.

How many operators does momondo search for flights from Washington, D.C. Reagan-National Airport to Missouri?

As of April 2026, there are 4 operators available to choose from for flights from Washington, D.C. Reagan-National Airport to Missouri.

How old do you have to be to fly from Washington, D.C. Reagan-National Airport to Missouri?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport to Missouri.

What documentation or ID do you need to fly to Missouri?

The required travel and health documents for your Missouri trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Missouri. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$70 Cheap Flights from Washington, D.C. Reagan-National Airport to Missouri in 2026

Q: How many flights depart from Washington, D.C. Reagan-National Airport to Missouri on average per day?

As of April 2026, 9 flights take off from Washington, D.C. Reagan-National Airport and land in Missouri each day. The most common flight departure time for this route is 8:00AM, with 40% of daily flights taking off at noon.

Q: How many flights depart from Washington, D.C. Reagan-National Airport to Missouri on average per week?

63 flights are operational weekly from Washington, D.C. Reagan-National Airport to Missouri as of April 2026. The most popular departure day for this route is Fri, with 24% of flights per week taking off on this day.

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington, D.C. Reagan-National Airport to Missouri

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:00 pm - 1:15 pm

DCA

STL

2h 15mnonstop

1:20 pm - 4:20 pm

STL

DCA

2h 00mnonstop

$265Southwest

Thu, Jun 4 - Mon, Jun 8

6:45 pm - 8:10 pm

DCA

STL

2h 25mnonstop

2:10 pm - 10:25 pm

STL

DCA

7h 15m

2 stops

$266Southwest

Mon, May 11 - Tue, May 19

7:59 am - 7:21 pm

DCA

STL

12h 22m

1 stop

8:17 pm - 9:58 pm

STL

DCA

24h 41m

1 stop

$267Frontier

Fri, May 1 - Mon, May 4

8:40 am - 10:12 am

DCA

STL

2h 32mnonstop

5:00 pm - 8:15 pm

STL

DCA

2h 15mnonstop

$268American Airlines

Thu, May 21 - Tue, May 26

7:59 am - 9:25 am

DCA

STL

2h 26mnonstop

6:00 am - 9:15 am

STL

DCA

2h 15mnonstop

$272American Airlines

Tue, May 12 - Sat, May 16

6:00 pm - 1:30 pm

DCA

MCI

20h 30m

1 stop

2:51 pm - 12:59 pm

MCI

DCA

21h 08m

1 stop

$291Frontier

Thu, Apr 30 - Sat, May 2

1:43 pm - 5:31 pm

DCA

MCI

4h 48m

1 stop

5:39 am - 2:59 pm

MCI

DCA

8h 20m

1 stop

$292Delta

Thu, Jun 4 - Sat, Jun 6

6:15 pm - 11:49 pm

DCA

MCI

6h 34m

1 stop

12:21 pm - 7:45 pm

MCI

DCA

6h 24m

1 stop

$294Delta

Mon, Jun 1 - Wed, Jun 3

6:15 am - 10:48 am

DCA

SGF

5h 33m

1 stop

8:00 am - 2:14 pm

SGF

DCA

5h 14m

1 stop

$334United Airlines

Tue, Apr 28 - Tue, May 5

6:00 pm - 10:02 pm

DCA

SGF

5h 02m

1 stop

6:00 am - 1:00 pm

SGF

DCA

6h 00m

1 stop

$339United Airlines

Sat, May 2 - Wed, May 6

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

American Airlines flights from Washington, D.C. Reagan-National Airport to Missouri

Our best American Airlines deals on Washington, D.C. Reagan-National Airport to Missouri flight tickets

American Airlines

May 21

DCA8:40 amWashington, D.C. Reagan-National

2h 32m

STL10:12 amLambert-St Louis

May 26

STL5:00 pmLambert-St Louis

2h 15m

DCA8:15 pmWashington, D.C. Reagan-National

$268

American Airlines

May 12

DCA7:59 amWashington, D.C. Reagan-National

2h 26m

STL9:25 amLambert-St Louis

May 16

STL6:00 amLambert-St Louis

2h 15m

DCA9:15 amWashington, D.C. Reagan-National

$272

American Airlines

May 30

DCA3:20 pmWashington, D.C. Reagan-National

5h 38m

1 stop

STL7:58 pmLambert-St Louis

Jun 6

STL5:14 pmLambert-St Louis

5h 45m

1 stop

DCA11:59 pmWashington, D.C. Reagan-National

$274

Delta flights from Washington, D.C. Reagan-National Airport to Missouri

Our best Delta deals on Washington, D.C. Reagan-National Airport to Missouri flight tickets

Delta

May 7

DCA12:27 pmWashington, D.C. Reagan-National

5h 49m

1 stop

STL5:16 pmLambert-St Louis

May 11

STL5:20 pmLambert-St Louis

5h 24m

1 stop

DCA11:44 pmWashington, D.C. Reagan-National

$285

Delta

Jun 4

DCA1:43 pmWashington, D.C. Reagan-National

4h 48m

1 stop

MCI5:31 pmKansas City

Jun 6

MCI5:39 amKansas City

8h 20m

1 stop

DCA2:59 pmWashington, D.C. Reagan-National

$292

Delta

Jun 1

DCA6:15 pmWashington, D.C. Reagan-National

6h 34m

1 stop

MCI11:49 pmKansas City

Jun 3

MCI12:21 pmKansas City

6h 24m

1 stop

DCA7:45 pmWashington, D.C. Reagan-National

$294

momondo Fare Finder

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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Thu 6/4

12:00 pm-1:15 pm

Nonstop2h 15m

Lambert-St Louis

Mon 6/8

1:20 pm-4:20 pm

Nonstop2h 00m

$265

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Mon 5/11

6:45 pm-8:10 pm

Nonstop2h 25m

Lambert-St Louis

Tue 5/19

2:10 pm-10:25 pm

2 stops7h 15m

$266

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Fri 5/1

7:59 am-7:21 pm

1 stop12h 22m

Lambert-St Louis

Mon 5/4

8:17 pm-9:58 pm

1 stop24h 41m

$267

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Thu 5/21

8:40 am-10:12 am

Nonstop2h 32m

Lambert-St Louis

Tue 5/26

5:00 pm-8:15 pm

Nonstop2h 15m

$268

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Tue 5/12

7:59 am-9:25 am

Nonstop2h 26m

Lambert-St Louis

Sat 5/16

6:00 am-9:15 am

Nonstop2h 15m

$272

Washington, D.C.Kansas City

DCA - MCI

DCAMCI

Washington, D.C. Reagan-National

Thu 4/30

6:00 pm-1:30 pm

1 stop20h 30m

Kansas City

Sat 5/2

2:51 pm-12:59 pm

1 stop21h 08m

$291

Washington, D.C.Kansas City

DCA - MCI

DCAMCI

Washington, D.C. Reagan-National

Thu 6/4

1:43 pm-5:31 pm

1 stop4h 48m

Kansas City

Sat 6/6

5:39 am-2:59 pm

1 stop8h 20m

$292

Washington, D.C.Kansas City

DCA - MCI

DCAMCI

Washington, D.C. Reagan-National

Mon 6/1

6:15 pm-11:49 pm

1 stop6h 34m

Kansas City

Wed 6/3

12:21 pm-7:45 pm

1 stop6h 24m

$294

Washington, D.C.Springfield

DCA - SGF

DCASGF

Washington, D.C. Reagan-National

Tue 4/28

6:15 am-10:48 am

1 stop5h 33m

Springfield-Branson

Tue 5/5

8:00 am-2:14 pm

1 stop5h 14m

$334

Washington, D.C.Springfield

DCA - SGF

DCASGF

Washington, D.C. Reagan-National

Sat 5/2

6:00 pm-10:02 pm

1 stop5h 02m

Springfield-Branson

Wed 5/6

6:00 am-1:00 pm

1 stop6h 00m

$339

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport to Missouri

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

Prices

Airlines

Other information

What is the cheapest month to fly to Missouri?

In general, August is the cheapest month to fly from Washington, D.C. Reagan-National Airport to Missouri. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $267. If you aren’t able to travel to Missouri during the month of August, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $285.

What is the cheapest day to depart on your flight to Missouri?

The cheapest day to depart from Washington, D.C. Reagan-National Airport to Missouri is on a Saturday when prices can be found for as low as $323. Flights from Washington, D.C. Reagan-National Airport to Missouri on a Sunday will generally be more expensive and average around $400. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Missouri?

According to our data, the cheapest time of day to fly to Missouri is in the evening. momondo users have found flights departing from Washington, D.C. Reagan-National Airport to Missouri in the evening for as low as $322. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Missouri are more costly in the afternoon, with an average ticket price of $381. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Washington, D.C. Reagan-National to Missouri flight route?

Fly from Washington, D.C. Reagan-National to Lambert-St Louis for the best Washington, D.C. Reagan-National - Missouri flight prices

How far in advance should I book a flight to Missouri?

You are more likely to see cheaper flights to Missouri from Washington, D.C. Reagan-National Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Missouri for around $350 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Missouri from Washington, D.C. Reagan-National Airport for as low as $274 on momondo.

What cabin class options are available on Washington, D.C. Reagan-National to Missouri flights?

There are 3 cabin classes available to choose from on Washington, D.C. Reagan-National to Missouri flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Washington, D.C. Reagan-National Airport to Missouri flights?

You could potentially save up to 32% on your flight if you consider stops on a Washington, D.C. Reagan-National Airport to Missouri flight.

Cheap Washington, D.C. Reagan-National Airport to Missouri flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Reagan-National Airport to Missouri

Best Price Found	$190
Fastest flight time	2h 10m
Direct flights	Every day
Airports in Missouri	55 airports

The best one-way flight to Missouri from Washington, D.C. Reagan-National Airport in the past 72 hours is $190. The best round-trip flight deal from Washington, D.C. Reagan-National Airport to Missouri found on momondo in the last 72 hours is $309.

The fastest flight from Washington, D.C. Reagan-National Airport to Missouri takes 2h 10m

Direct flights go from Washington, D.C. Reagan-National Airport to Missouri every day.

There are 55 airports in Missouri. From Washington, D.C. Reagan-National Airport there are direct flights to Lambert-St Louis (STL).

Search flight deals

Frequently asked questions about flying from Washington, D.C. Reagan-National Airport to Missouri

When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to Missouri?
Prices for flights from Washington, D.C. Reagan-National Airport to Missouri refresh daily.
How many operators does momondo search for flights from Washington, D.C. Reagan-National Airport to Missouri?
As of April 2026, there are 4 operators available to choose from for flights from Washington, D.C. Reagan-National Airport to Missouri.
How old do you have to be to fly from Washington, D.C. Reagan-National Airport to Missouri?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport to Missouri.
What documentation or ID do you need to fly to Missouri?
The required travel and health documents for your Missouri trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Missouri. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Washington, D.C. Reagan-National Airport to Missouri?
Based on momondo bookings for flights between Washington, D.C. Reagan-National Airport and Missouri, the leading plane model is Boeing 737 MAX 8, making up 19.31% of the total bookings. Other popular models include Canadair (Bombardier) Regional Jet 900 with 18.02%, Canadair (Bombardier) Regional Jet 700 with 15.61%, and Boeing 737-800 Passenger/BBJ2 (winglets) with 11.03%.

Best airlines flying from Washington, D.C. Reagan-National Airport to Missouri

Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to Missouri with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $167	Free Cancellation	Rating 7.1 11,604 reviews	Search American Airlines flights
Southwest	PriceFrom $188	Free Cancellation	Rating 8.0 4,330 reviews	Search Southwest flights
United Airlines	PriceFrom $248	Free Cancellation	Rating 7.4 9,605 reviews	Search United Airlines flights
Delta	PriceFrom $248	Free Cancellation	Rating 7.9 8,424 reviews	Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Missouri?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Missouri for you.

Can I find flights from Washington, D.C. to Missouri with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Missouri from Washington, D.C. with this policy.

How can momondo help me find flights from Washington, D.C. to Missouri?

Once you have performed a search for Washington, D.C. to Missouri flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Washington, D.C. to Missouri right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Missouri, momondo offers a useful price alert feature which will track prices for flights to Missouri from Washington, D.C. and alert you when they change.

An easier way to manage your Missouri trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Mon 5/18

Mon 5/25

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Missouri

Popular cities

Other flights from Washington, D.C. Reagan-National Airport

Other flights to Missouri

Airlines

Complete your trip

Feeling lucky

Popular cities in Missouri

Flights to New Yorkfrom $56

Flights to Los Angelesfrom $53

Flights to Orlandofrom $53

Flights to Miamifrom $50

Flights to Chicagofrom $67

Flights to San Franciscofrom $56

Flights to Las Vegasfrom $46

Flights to Washington, D.C.from $55

Flights to Bostonfrom $73

Flights to Atlantafrom $53

Flights to Dallasfrom $62

Flights to Fort Lauderdalefrom $47

Cheap flights from Washington, D.C. Reagan-National Airport to Missouri from $70

Find the cheapest flights from Washington, D.C. Reagan-National Airport to Missouri

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

American Airlines flights from Washington, D.C. Reagan-National Airport to Missouri

Our best American Airlines deals on Washington, D.C. Reagan-National Airport to Missouri flight tickets

Delta flights from Washington, D.C. Reagan-National Airport to Missouri

Our best Delta deals on Washington, D.C. Reagan-National Airport to Missouri flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Missouri that are best for you.

See travel insights to Missouri from

How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport to Missouri

What is the cheapest month to fly to Missouri?

What is the cheapest day to depart on your flight to Missouri?

What is the cheapest time of day to depart on your flight to Missouri?

What is the cheapest Washington, D.C. Reagan-National to Missouri flight route?

How far in advance should I book a flight to Missouri?

What cabin class options are available on Washington, D.C. Reagan-National to Missouri flights?

Can stopping save me money on Washington, D.C. Reagan-National Airport to Missouri flights?

What is the cheapest airline that flies from Washington, D.C. Reagan-National to Missouri?

What airlines fly to Missouri?

How many flights depart from Washington, D.C. Reagan-National Airport to Missouri on average per day?

How many flights depart from Washington, D.C. Reagan-National Airport to Missouri on average per week?

Cheap Washington, D.C. Reagan-National Airport to Missouri flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Reagan-National Airport to Missouri

Best Price Found

Fastest flight time

Direct flights

Airports in Missouri

Frequently asked questions about flying from Washington, D.C. Reagan-National Airport to Missouri

Best airlines flying from Washington, D.C. Reagan-National Airport to Missouri

Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to Missouri with momondo

Why use momondo?

An easier way to manage your Missouri trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Missouri

Popular cities in Missouri

Popular flights according to clicks in the last 7 days on momondo

Washington, D.C. Reagan-National Airport flight routes

According to popular flight searches on momondo this year

Missouri flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Missouri

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Complete your trip to Missouri

Explore popular destinations other users love

According to popular flight searches on momondo this year