Cheap flights from District of Columbia to Missouri from $122

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to Missouri departing on 8/24. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
8:33 pm - 5:37 pm
IAD
-
STL
22h 04m
1 stop
Frontier Logo
4:57 pm - 4:40 pm
STL
-
IAD
22h 43m
1 stop
$261Frontier
Wed, Jul 8 - Mon, Jul 13
Multiple Airlines Logo
8:54 pm - 6:36 pm
IAD
-
STL
22h 42m
2 stops
Multiple Airlines Logo
5:06 pm - 4:52 pm
STL
-
IAD
22h 46m
1 stop
$262Multiple Airlines
Sat, Jun 27 - Mon, Jun 29
Southwest Logo
11:45 am - 2:50 pm
DCA
-
STL
4h 05m
1 stop
Southwest Logo
8:30 am - 11:25 am
STL
-
DCA
1h 55mnonstop
$262Southwest
Wed, Jul 15 - Thu, Jul 16
Southwest Logo
11:45 am - 2:50 pm
DCA
-
STL
4h 05m
1 stop
Southwest Logo
1:10 pm - 4:10 pm
STL
-
DCA
2h 00mnonstop
$263Southwest
Tue, Jul 21 - Wed, Jul 22
American Airlines Logo
12:52 pm - 7:00 pm
DCA
-
STL
7h 08m
1 stop
American Airlines Logo
6:43 am - 9:46 am
STL
-
DCA
2h 03mnonstop
$267American Airlines
Wed, Jul 1 - Tue, Jul 7
United Airlines Logo
10:31 am - 3:46 pm
IAD
-
STL
6h 15m
1 stop
United Airlines Logo
8:43 am - 11:55 am
STL
-
IAD
2h 12mnonstop
$267United Airlines
Tue, Jul 7 - Tue, Jul 14
American Airlines Logo
7:40 am - 1:12 pm
DCA
-
STL
6h 32m
1 stop
American Airlines Logo
6:00 am - 9:14 am
STL
-
DCA
2h 14mnonstop
$270American Airlines
Tue, Jun 30 - Mon, Aug 17
United Airlines Logo
5:42 pm - 11:29 pm
IAD
-
STL
6h 47m
1 stop
United Airlines Logo
8:43 am - 11:55 am
STL
-
IAD
2h 12mnonstop
$272United Airlines
Tue, Jul 7 - Wed, Jul 8
Delta Logo
10:05 am - 1:23 pm
IAD
-
STL
4h 18m
1 stop
Delta Logo
5:30 pm - 12:05 am
STL
-
IAD
5h 35m
1 stop
$273Delta
Tue, Sep 29 - Thu, Oct 8
Delta Logo
6:59 am - 10:53 am
DCA
-
SGF
4h 54m
1 stop
Delta Logo
4:00 pm - 11:48 pm
SGF
-
DCA
6h 48m
1 stop
$309Delta
Sat, Aug 15 - Sat, Aug 22

United Airlines flights from District of Columbia to Missouri

Our best United Airlines deals on District of Columbia to Missouri flight tickets
United Airlines
Jul 7
IAD10:31 amWashington, D.C. Dulles Intl
6h 15m
1 stop
STL3:46 pmLambert-St Louis
Jul 14
STL8:43 amLambert-St Louis
2h 12m
IAD11:55 amWashington, D.C. Dulles Intl
$267
United Airlines
Jul 7
IAD5:42 pmWashington, D.C. Dulles Intl
6h 47m
1 stop
STL11:29 pmLambert-St Louis
Jul 8
STL8:43 amLambert-St Louis
2h 12m
IAD11:55 amWashington, D.C. Dulles Intl
$272
United Airlines
Jul 8
DCA11:57 amWashington, D.C. Reagan-National
4h 49m
1 stop
STL3:46 pmLambert-St Louis
Jul 14
STL6:01 amLambert-St Louis
5h 22m
1 stop
DCA12:23 pmWashington, D.C. Reagan-National
$277

American Airlines flights from District of Columbia to Missouri

Our best American Airlines deals on District of Columbia to Missouri flight tickets
American Airlines
Jul 1
DCA12:52 pmWashington, D.C. Reagan-National
7h 08m
1 stop
STL7:00 pmLambert-St Louis
Jul 7
STL6:43 amLambert-St Louis
2h 03m
DCA9:46 amWashington, D.C. Reagan-National
$267
American Airlines
Jun 30
DCA7:40 amWashington, D.C. Reagan-National
6h 32m
1 stop
STL1:12 pmLambert-St Louis
Aug 17
STL6:00 amLambert-St Louis
2h 14m
DCA9:14 amWashington, D.C. Reagan-National
$270
American Airlines
Jun 30
DCA6:23 amWashington, D.C. Reagan-National
6h 36m
1 stop
STL11:59 amLambert-St Louis
Aug 17
STL6:00 amLambert-St Louis
5h 18m
1 stop
DCA12:18 pmWashington, D.C. Reagan-National
$273

momondo Fare Finder

 
Customize your flight search to find flights from District of Columbia 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 June 1, 2026.
Use the filters below to find and compare flights from District of Columbia to Missouri that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

Wed 7/8

8:33 pm-5:37 pm

1 stop22h 04m

Lambert-St Louis

Mon 7/13

4:57 pm-4:40 pm

1 stop22h 43m

$261

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

Sat 6/27

8:54 pm-6:36 pm

2 stops22h 42m

Lambert-St Louis

Mon 6/29

5:06 pm-4:52 pm

1 stop22h 46m

$262
Quickest round-trip

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Wed 7/15

11:45 am-2:50 pm

1 stop4h 05m

Lambert-St Louis

Thu 7/16

8:30 am-11:25 am

Nonstop1h 55m

$262

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Tue 7/21

11:45 am-2:50 pm

1 stop4h 05m

Lambert-St Louis

Wed 7/22

1:10 pm-4:10 pm

Nonstop2h 00m

$263

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Wed 7/1

12:52 pm-7:00 pm

1 stop7h 08m

Lambert-St Louis

Tue 7/7

6:43 am-9:46 am

Nonstop2h 03m

$267

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

Tue 7/7

10:31 am-3:46 pm

1 stop6h 15m

Lambert-St Louis

Tue 7/14

8:43 am-11:55 am

Nonstop2h 12m

$267

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Tue 6/30

7:40 am-1:12 pm

1 stop6h 32m

Lambert-St Louis

Mon 8/17

6:00 am-9:14 am

Nonstop2h 14m

$270

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

Tue 7/7

5:42 pm-11:29 pm

1 stop6h 47m

Lambert-St Louis

Wed 7/8

8:43 am-11:55 am

Nonstop2h 12m

$272

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

Tue 9/29

10:05 am-1:23 pm

1 stop4h 18m

Lambert-St Louis

Thu 10/8

5:30 pm-12:05 am

1 stop5h 35m

$273

Washington, D.C.Springfield

DCA - SGF

DCASGF

Washington, D.C. Reagan-National

Sat 8/15

6:59 am-10:53 am

1 stop4h 54m

Springfield-Branson

Sat 8/22

4:00 pm-11:48 pm

1 stop6h 48m

$309

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 District of Columbia 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, December is the cheapest month to fly from District of Columbia to Missouri. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $78. If you aren’t able to travel to Missouri during the month of December, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $90.

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

The cheapest day to depart from District of Columbia to Missouri is on a Saturday when prices can be found for as low as $407. Flights from District of Columbia to Missouri on a Monday will generally be more expensive and average around $749. 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 District of Columbia to Missouri in the morning for as low as $512. 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 District of Columbia to Missouri flight route?

Fly from Baltimore/Washington to Lambert-St Louis for the best District of Columbia - Missouri flight prices

How far in advance should I book a flight from District of Columbia to Missouri?

You are more likely to see cheaper flights to Missouri from District of Columbia when booking weeks ahead of your departure date. In general, you can expect to find flights to Missouri for around $427 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Missouri from District of Columbia for as low as $124 on momondo.

What cabin class options are available on District of Columbia to Missouri flights?

There are 4 cabin classes available to choose from on District of Columbia 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 District of Columbia to Missouri flights?

You could potentially save up to 4% on your flight if you consider stops on a District of Columbia to Missouri flight.

Cheap District of Columbia to Missouri flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Missouri

Best Price Found

$159

Fastest flight time

2h 10m

Direct flights

Every day

Airports in Missouri

55 airports
The best one-way flight to Missouri from District of Columbia in the past 72 hours is $159. The best round-trip flight deal from District of Columbia to Missouri found on momondo in the last 72 hours is $315.
The fastest flight from District of Columbia to Missouri takes 2h 10m
Direct flights go from District of Columbia to Missouri every day.
There are 55 airports in Missouri. From District of Columbia there are direct flights to Lambert-St Louis (STL).

Frequently asked questions about flying from District of Columbia to Missouri

  • When did momondo last update prices for flights from District of Columbia to Missouri?

    Prices for flights from District of Columbia to Missouri are refreshed on a daily basis.

  • How many operators does momondo search for flights from District of Columbia to Missouri?

  • How old do you have to be to fly from District of Columbia to Missouri?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from District of Columbia to Missouri.

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

    The travel and health documents required for your trip to Missouri can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Missouri. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from District of Columbia to Missouri?

Best airlines flying from District of Columbia to Missouri

Compare and see reviews for airlines that fly from District of Columbia to Missouri with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $72Free CancellationRating
5.6
2,923 reviews
Search Frontier flights
DeltaPriceFrom $124Free CancellationRating
7.9
8,402 reviews
Search Delta flights
American AirlinesPriceFrom $178Free CancellationRating
7.1
11,641 reviews
Search American Airlines flights
SouthwestPriceFrom $204Free CancellationRating
8.0
4,256 reviews
Search Southwest flights
United AirlinesPriceFrom $248Free CancellationRating
7.4
9,768 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia 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 District of Columbia to Missouri for you.

Can I find flights from District of Columbia to Missouri with flexible booking policies on momondo?

Yes. All flights to Missouri from District of Columbia on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from District of Columbia to Missouri?

Once you have performed a search for District of Columbia 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 District of Columbia to Missouri right now. Can momondo alert me if prices change?

If you are not ready to book a flight from District of Columbia to Missouri now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Missouri and let you know when they change.

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1 adult
Wed 7/1
Wed 7/8

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