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Cheap flights from Washington, D.C. to Missouri from $54

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 3/3. 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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Find the cheapest flights from Washington, D.C. to Missouri

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
8:39 pm - 6:51 am
BWI
-
STL
11h 12m
1 stop
Frontier Logo
8:22 pm - 5:13 pm
STL
-
BWI
19h 51m
1 stop
$124Frontier
Fri, Feb 20 - Mon, Feb 23
Frontier Logo
5:54 pm - 6:51 am
BWI
-
STL
13h 57m
1 stop
Frontier Logo
8:22 pm - 5:13 pm
STL
-
BWI
19h 51m
1 stop
$129Frontier
Tue, Feb 17 - Mon, Feb 23
American Airlines Logo
7:59 pm - 9:25 pm
DCA
-
STL
2h 26mnonstop
American Airlines Logo
3:43 pm - 6:58 pm
STL
-
DCA
2h 15mnonstop
$254American Airlines
Sat, Apr 11 - Fri, Apr 17
American Airlines Logo
2:14 pm - 8:16 pm
DCA
-
STL
7h 02m
1 stop
American Airlines Logo
6:00 am - 9:12 am
STL
-
DCA
2h 12mnonstop
$255American Airlines
Wed, Mar 4 - Wed, Mar 18
Southwest Logo
4:25 pm - 9:50 pm
DCA
-
STL
6h 25m
1 stop
Southwest Logo
10:15 am - 6:00 pm
STL
-
DCA
6h 45m
2 stops
$258Southwest
Sat, Feb 21 - Tue, Feb 24
United Airlines Logo
8:40 am - 10:13 am
IAD
-
STL
2h 33mnonstop
United Airlines Logo
12:15 pm - 3:27 pm
STL
-
IAD
2h 12mnonstop
$262United Airlines
Thu, Feb 19 - Sat, Feb 21
Southwest Logo
8:00 am - 9:20 am
DCA
-
STL
2h 20mnonstop
Southwest Logo
1:20 pm - 4:20 pm
STL
-
DCA
2h 00mnonstop
$265Southwest
Sat, May 16 - Mon, May 18
Delta Logo
6:00 am - 11:02 am
IAD
-
STL
6h 02m
1 stop
Delta Logo
6:59 pm - 12:27 am
STL
-
IAD
4h 28m
1 stop
$265Delta
Wed, Mar 4 - Wed, Mar 18
United Airlines Logo
1:00 pm - 3:04 pm
IAD
-
MCI
3h 04mnonstop
United Airlines Logo
12:37 pm - 4:07 pm
MCI
-
IAD
2h 30mnonstop
$267United Airlines
Sat, Feb 28 - Tue, Mar 3
Delta Logo
7:15 am - 12:09 pm
IAD
-
SGF
5h 54m
1 stop
Delta Logo
6:00 am - 11:35 am
SGF
-
IAD
4h 35m
1 stop
$269Delta
Sat, Feb 21 - Tue, Feb 24

Frontier flights from Washington, D.C. to Missouri

Our best Frontier deals on Washington, D.C. to Missouri flight tickets
Frontier
Feb 20
BWI8:39 pmBaltimore/Washington
11h 12m
1 stop
STL6:51 amLambert-St Louis
Feb 23
STL8:22 pmLambert-St Louis
19h 51m
1 stop
BWI5:13 pmBaltimore/Washington
$124
Frontier
Feb 17
BWI5:54 pmBaltimore/Washington
13h 57m
1 stop
STL6:51 amLambert-St Louis
Feb 23
STL8:22 pmLambert-St Louis
19h 51m
1 stop
BWI5:13 pmBaltimore/Washington
$129
Frontier
Feb 20
BWI8:39 pmBaltimore/Washington
11h 12m
1 stop
STL6:51 amLambert-St Louis
Feb 23
STL8:22 pmLambert-St Louis
19h 51m
1 stop
BWI5:13 pmBaltimore/Washington
$133

Southwest flights from Washington, D.C. to Missouri

Our best Southwest deals on Washington, D.C. to Missouri flight tickets
Southwest
Apr 13
DCA3:35 pmWashington, D.C. Reagan-National
4h 05m
1 stop
STL6:40 pmLambert-St Louis
Apr 18
STL10:55 amLambert-St Louis
7h 00m
2 stops
DCA6:55 pmWashington, D.C. Reagan-National
$254
Southwest
Feb 21
DCA4:25 pmWashington, D.C. Reagan-National
6h 25m
1 stop
STL9:50 pmLambert-St Louis
Feb 24
STL10:15 amLambert-St Louis
6h 45m
2 stops
DCA6:00 pmWashington, D.C. Reagan-National
$258
Southwest
May 16
DCA8:00 amWashington, D.C. Reagan-National
2h 20m
STL9:20 amLambert-St Louis
May 18
STL7:40 pmLambert-St Louis
2h 00m
DCA10:40 pmWashington, D.C. Reagan-National
$265

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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, momondo users made 832,500 searches. Data last updated February 1, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Missouri that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Fri 2/20

8:39 pm-6:51 am

1 stop11h 12m

Lambert-St Louis

Mon 2/23

8:22 pm-5:13 pm

1 stop19h 51m

$124

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Tue 2/17

5:54 pm-6:51 am

1 stop13h 57m

Lambert-St Louis

Mon 2/23

8:22 pm-5:13 pm

1 stop19h 51m

$129

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Sat 4/11

7:59 pm-9:25 pm

Nonstop2h 26m

Lambert-St Louis

Fri 4/17

3:43 pm-6:58 pm

Nonstop2h 15m

$254

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Wed 3/4

2:14 pm-8:16 pm

1 stop7h 02m

Lambert-St Louis

Wed 3/18

6:00 am-9:12 am

Nonstop2h 12m

$255

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Sat 2/21

4:25 pm-9:50 pm

1 stop6h 25m

Lambert-St Louis

Tue 2/24

10:15 am-6:00 pm

2 stops6h 45m

$258

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

Thu 2/19

8:40 am-10:13 am

Nonstop2h 33m

Lambert-St Louis

Sat 2/21

12:15 pm-3:27 pm

Nonstop2h 12m

$262

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Sat 5/16

8:00 am-9:20 am

Nonstop2h 20m

Lambert-St Louis

Mon 5/18

1:20 pm-4:20 pm

Nonstop2h 00m

$265

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

Wed 3/4

6:00 am-11:02 am

1 stop6h 02m

Lambert-St Louis

Wed 3/18

6:59 pm-12:27 am

1 stop4h 28m

$265

Washington, D.C.Kansas City

IAD - MCI

IADMCI

Washington, D.C. Dulles Intl

Sat 2/28

1:00 pm-3:04 pm

Nonstop3h 04m

Kansas City

Tue 3/3

12:37 pm-4:07 pm

Nonstop2h 30m

$267

Washington, D.C.Springfield

IAD - SGF

IADSGF

Washington, D.C. Dulles Intl

Sat 2/21

7:15 am-12:09 pm

1 stop5h 54m

Springfield-Branson

Tue 2/24

6:00 am-11:35 am

1 stop4h 35m

$269

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Missouri from

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

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 $273. 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 $393. Flights from Washington, D.C. to Missouri on a Monday will generally be more expensive and average around $535. 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 $446. 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?

No. A direct flight is the cheapest option for a flight between 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

$148

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 $148. The best round-trip flight deal from Washington, D.C. to Missouri found on momondo in the last 72 hours is $303.
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?

  • 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?

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
FrontierPriceFrom $78Free CancellationRating
5.7
3,051 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $111Free CancellationRating
6.3
8,391 reviews
Search Spirit Airlines flights
DeltaPriceFrom $124Free CancellationRating
7.9
8,128 reviews
Search Delta flights
American AirlinesPriceFrom $167Free CancellationRating
7.2
11,211 reviews
Search American Airlines flights
SouthwestPriceFrom $185Free CancellationRating
8.0
4,273 reviews
Search Southwest flights
United AirlinesPriceFrom $233Free CancellationRating
7.4
9,225 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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