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

The number of flights available between Washington, D.C. and Missouri is 206 per week as of March 2026. The most frequent departure day is Thu, with 17% of weekly flights leaving on this day.

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

Frontier, Delta, and United Airlines are the most popular carriers operating from Washington, D.C. to Missouri

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

29 flights are operational daily from Washington, D.C. to Missouri as of March 2026. The most popular departure time for this route is 6:00PM, with 40% of flights per day taking off in the afternoon.

What airlines fly to Missouri?

Southwest, American Airlines and United Airlines are the top three most popular airlines that fly to Missouri from Washington, D.C. according to our data. Southwest is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Missouri. Keep in mind that there are 6 different airlines that fly to Missouri on a routine basis, so you have a few additional options to choose from.

How long is the flight from Washington, D.C. to Missouri?

The flight from Washington, D.C. to Missouri depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Baltimore (a popular airport in Washington, D.C.) to St. Louis (the most popular airport in Missouri), then the flight time is 2h 10m on average. If you fly from Washington, D.C. (another popular airport in Washington, D.C.) to St. Louis, then the average flight time is 2h 14m.

When did momondo last update prices for flights from Washington, D.C. to Missouri?

Prices for flights from Washington, D.C. to Missouri were last updated today.

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

The number of operators available for flights from Washington, D.C. to Missouri is 6 as of March 2026.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. to Missouri.

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

The travel and health documents you'll need for your trip to Missouri may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Missouri. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$70 Cheap Flights from Washington, D.C. to Missouri in 2026

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Find the cheapest flights from Washington, D.C. to Missouri

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:04 pm - 11:58 pm

BWI

STL

11h 54m

1 stop

8:23 pm - 8:02 am

STL

BWI

10h 39m

1 stop

$140Frontier

Fri, Apr 10 - Wed, Apr 15

12:08 pm - 7:51 am

BWI

STL

20h 43m

1 stop

8:23 pm - 8:02 am

STL

BWI

10h 39m

1 stop

$151Frontier

Sun, Apr 12 - Wed, Apr 15

8:00 am - 9:20 am

DCA

STL

2h 20mnonstop

5:45 am - 12:25 pm

STL

DCA

5h 40m

1 stop

$275Southwest

Mon, Apr 20 - Sat, Apr 25

5:45 pm - 7:22 pm

IAD

STL

2h 37mnonstop

6:30 am - 11:48 am

STL

IAD

4h 18m

1 stop

$275United Airlines

Sat, Apr 11 - Mon, Apr 13

6:35 pm - 11:55 pm

DCA

STL

6h 20m

1 stop

2:10 pm - 10:25 pm

STL

DCA

7h 15m

2 stops

$276Southwest

Mon, May 4 - Wed, May 6

5:45 pm - 7:19 pm

DCA

STL

2h 34mnonstop

5:08 am - 8:28 am

STL

DCA

2h 20mnonstop

$277American Airlines

Sat, May 23 - Wed, May 27

6:05 am - 10:50 am

DCA

MCI

5h 45m

1 stop

3:03 pm - 8:33 pm

MCI

DCA

4h 30m

1 stop

$281Delta

Tue, Apr 21 - Wed, Apr 22

5:50 pm - 7:48 pm

IAD

MCI

2h 58mnonstop

9:58 am - 5:28 pm

MCI

IAD

6h 30m

1 stop

$284United Airlines

Sat, Apr 25 - Wed, Apr 29

7:19 pm - 11:36 pm

IAD

STL

5h 17m

1 stop

7:05 pm - 12:51 am

STL

IAD

4h 46m

1 stop

$285Delta

Mon, May 4 - Sat, May 16

6:00 am - 11:47 am

DCA

STL

6h 47m

1 stop

5:29 am - 8:49 am

STL

DCA

2h 20mnonstop

$286American Airlines

Tue, May 19 - Thu, May 21

Frontier flights from Washington, D.C. to Missouri

Our best Frontier deals on Washington, D.C. to Missouri flight tickets

Frontier

Apr 10

BWI1:04 pmBaltimore/Washington

11h 54m

1 stop

STL11:58 pmLambert-St Louis

Apr 15

STL8:23 pmLambert-St Louis

10h 39m

1 stop

BWI8:02 amBaltimore/Washington

$140

Frontier

Apr 12

BWI12:08 pmBaltimore/Washington

20h 43m

1 stop

STL7:51 amLambert-St Louis

Apr 15

STL8:23 pmLambert-St Louis

10h 39m

1 stop

BWI8:02 amBaltimore/Washington

$151

Frontier

Apr 22

BWI5:49 pmBaltimore/Washington

17h 41m

1 stop

STL10:30 amLambert-St Louis

May 19

STL6:33 pmLambert-St Louis

12h 10m

1 stop

BWI7:43 amBaltimore/Washington

$154

Delta flights from Washington, D.C. to Missouri

Our best Delta deals on Washington, D.C. to Missouri flight tickets

Delta

Apr 21

DCA6:05 amWashington, D.C. Reagan-National

5h 45m

1 stop

MCI10:50 amKansas City

Apr 22

MCI3:03 pmKansas City

4h 30m

1 stop

DCA8:33 pmWashington, D.C. Reagan-National

$281

Delta

May 4

DCA7:38 pmWashington, D.C. Reagan-National

4h 58m

1 stop

STL11:36 pmLambert-St Louis

May 9

STL1:05 pmLambert-St Louis

6h 08m

1 stop

DCA8:13 pmWashington, D.C. Reagan-National

$285

Delta

Apr 15

IAD7:06 amWashington, D.C. Dulles Intl

5h 14m

1 stop

MCI11:20 amKansas City

Apr 23

MCI10:49 amKansas City

4h 42m

1 stop

IAD4:31 pmWashington, D.C. Dulles Intl

$294

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Fri 4/10

1:04 pm-11:58 pm

1 stop11h 54m

Lambert-St Louis

Wed 4/15

8:23 pm-8:02 am

1 stop10h 39m

$140

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Sun 4/12

12:08 pm-7:51 am

1 stop20h 43m

Lambert-St Louis

Wed 4/15

8:23 pm-8:02 am

1 stop10h 39m

$151

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Mon 4/20

8:00 am-9:20 am

Nonstop2h 20m

Lambert-St Louis

Sat 4/25

5:45 am-12:25 pm

1 stop5h 40m

$275

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

Sat 4/11

5:45 pm-7:22 pm

Nonstop2h 37m

Lambert-St Louis

Mon 4/13

6:30 am-11:48 am

1 stop4h 18m

$275

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Mon 5/4

6:35 pm-11:55 pm

1 stop6h 20m

Lambert-St Louis

Wed 5/6

2:10 pm-10:25 pm

2 stops7h 15m

$276

Quickest round-trip

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Sat 5/23

5:45 pm-7:19 pm

Nonstop2h 34m

Lambert-St Louis

Wed 5/27

5:08 am-8:28 am

Nonstop2h 20m

$277

Washington, D.C.Kansas City

DCA - MCI

DCAMCI

Washington, D.C. Reagan-National

Tue 4/21

6:05 am-10:50 am

1 stop5h 45m

Kansas City

Wed 4/22

3:03 pm-8:33 pm

1 stop4h 30m

$281

Washington, D.C.Kansas City

IAD - MCI

IADMCI

Washington, D.C. Dulles Intl

Sat 4/25

5:50 pm-7:48 pm

Nonstop2h 58m

Kansas City

Wed 4/29

9:58 am-5:28 pm

1 stop6h 30m

$284

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

Mon 5/4

7:19 pm-11:36 pm

1 stop5h 17m

Lambert-St Louis

Sat 5/16

7:05 pm-12:51 am

1 stop4h 46m

$285

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Tue 5/19

6:00 am-11:47 am

1 stop6h 47m

Lambert-St Louis

Thu 5/21

5:29 am-8:49 am

Nonstop2h 20m

$286

Flights are sorted by cheapest round-trip flights first.

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How to get the cheapest flight ticket from Washington, D.C. 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. to Missouri. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $275. 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 $293.

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

The cheapest day to depart from Washington, D.C. to Missouri is on a Wednesday when prices can be found for as low as $371. Flights from Washington, D.C. to Missouri on a Monday will generally be more expensive and average around $594. 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 morning. momondo users have found flights departing from Washington, D.C. to Missouri in the morning for as low as $478. 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 $617. 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. to Missouri flight route?

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

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

There are 4 cabin classes available to choose from on Washington, D.C. 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. to Missouri flights?

You could potentially save up to 4% on your flight if you consider stops on a Washington, D.C. to Missouri flight.

Cheap Washington, D.C. to Missouri flight deals and tips

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

Best Price Found	$173
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. in the past 72 hours is $173. The best round-trip flight deal from Washington, D.C. to Missouri found on momondo in the last 72 hours is $311.

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

Direct flights go from Washington, D.C. to Missouri every day.

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

Search flight deals

When did momondo last update prices for flights from Washington, D.C. to Missouri?
Prices for flights from Washington, D.C. to Missouri were last updated today.
How many operators does momondo search for flights from Washington, D.C. to Missouri?
The number of operators available for flights from Washington, D.C. to Missouri is 6 as of March 2026.
How old do you have to be to fly from Washington, D.C. to Missouri?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. to Missouri.
What documentation or ID do you need to fly to Missouri?
The travel and health documents you'll need for your trip to Missouri may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Missouri. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Washington, D.C. to Missouri?
Based on momondo bookings for flights between Washington, D.C. and Missouri, the leading plane model is Boeing 737 MAX 8, making up 21.04% of the total bookings. Other popular models include Boeing 737-800 Passenger/BBJ2 (winglets) with 14.06%, Canadair (Bombardier) Regional Jet 900 with 13.38%, and Canadair (Bombardier) Regional Jet 700 with 11.68%.

Best airlines flying from Washington, D.C. to Missouri

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

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $78	Free Cancellation	Rating 5.7 3,019 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $111	Free Cancellation	Rating 6.3 8,532 reviews	Search Spirit Airlines flights
Delta	PriceFrom $124	Free Cancellation	Rating 7.9 8,314 reviews	Search Delta flights
American Airlines	PriceFrom $167	Free Cancellation	Rating 7.1 11,486 reviews	Search American Airlines flights
Southwest	PriceFrom $188	Free Cancellation	Rating 8.0 4,324 reviews	Search Southwest flights
United Airlines	PriceFrom $239	Free Cancellation	Rating 7.4 9,455 reviews	Search United Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Missouri. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Missouri from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential Washington, D.C. to Missouri flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Washington, D.C. to Missouri flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Popular cities in Missouri

Flights to New Yorkfrom $66

Flights to Los Angelesfrom $57

Flights to Orlandofrom $47

Flights to Miamifrom $53

Flights to Chicagofrom $66

Flights to San Franciscofrom $84

Flights to Las Vegasfrom $57

Flights to Washington, D.C.from $59

Flights to Bostonfrom $70

Flights to Atlantafrom $49

Flights to Dallasfrom $60

Flights to Seattlefrom $71

Cheap flights from Washington, D.C. to Missouri from $70

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Missouri departing on 4/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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See travel insights to Missouri from

How to get the cheapest flight ticket from Washington, D.C. 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. to Missouri flight route?

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

Can stopping save me money on Washington, D.C. to Missouri flights?

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

What airlines fly to Missouri?

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

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

How long is the flight from Washington, D.C. to Missouri?

Cheap Washington, D.C. to Missouri flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Missouri

Best airlines flying from Washington, D.C. to Missouri

Compare and see reviews for airlines that fly from Washington, D.C. 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

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According to popular flight searches on momondo this year

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