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Cheap flights from Missouri to Washington, D.C. from $68

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Missouri to Washington, D.C. departing on 3/11. 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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0 bags

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Cheap round-trip flights

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Multiple Airlines Logo
8:59 am - 2:08 pm
MCI
-
IAD
28h 09m1 stop
Multiple Airlines Logo
6:00 am - 10:31 am
IAD
-
MCI
29h 31m2 stops
$204Multiple Airlines
Thu, Jan 8 - Wed, Jan 14
Multiple Airlines Logo
5:42 pm - 8:40 am
STL
-
IAD
13h 58m1 stop
Multiple Airlines Logo
2:58 pm - 11:33 pm
IAD
-
STL
9h 35m2 stops
$208Multiple Airlines
Thu, Jan 29 - Fri, Feb 6
Frontier Logo
9:24 pm - 10:43 am
MCI
-
IAD
12h 19m2 stops
Frontier Logo
5:39 pm - 9:53 am
IAD
-
MCI
17h 14m1 stop
$215Frontier
Thu, Feb 26 - Sun, Mar 1
Southwest Logo
6:00 am - 2:55 pm
MCI
-
IAD
7h 55m1 stop
Southwest Logo
7:00 am - 5:15 pm
IAD
-
MCI
11h 15m1 stop
$226Southwest
Sat, Jan 17 - Sat, Jan 24
Frontier Logo
8:22 pm - 10:44 am
STL
-
IAD
13h 22m1 stop
Frontier Logo
1:31 pm - 11:33 pm
IAD
-
STL
11h 02m1 stop
$231Frontier
Fri, Jan 30 - Mon, Feb 2
Southwest Logo
6:00 am - 2:55 pm
MCI
-
IAD
7h 55m1 stop
Southwest Logo
9:05 am - 4:30 pm
IAD
-
MCI
8h 25m1 stop
$231Southwest
Sat, Jan 17 - Sun, Jan 18
United Airlines Logo
8:30 am - 11:40 am
STL
-
IAD
2h 10mnonstop
United Airlines Logo
8:40 am - 10:13 am
IAD
-
STL
2h 33mnonstop
$235United Airlines
Tue, Jan 27 - Sat, Jan 31
United Airlines Logo
11:20 am - 5:35 pm
STL
-
IAD
5h 15m1 stop
United Airlines Logo
8:40 am - 10:13 am
IAD
-
STL
2h 33mnonstop
$245United Airlines
Tue, Jan 27 - Sat, Jan 31
Delta Logo
6:53 pm - 12:28 am
SGF
-
IAD
4h 35m1 stop
Delta Logo
6:00 am - 11:01 am
IAD
-
SGF
6h 01m1 stop
$269Delta
Thu, Apr 16 - Thu, Apr 23
Delta Logo
6:53 pm - 12:28 am
SGF
-
IAD
4h 35m1 stop
Delta Logo
6:00 am - 11:01 am
IAD
-
SGF
6h 01m1 stop
$294Delta
Thu, Apr 16 - Thu, Apr 23

Delta flights from Missouri to Washington, D.C. Dulles Intl Airport

Our best Delta deals on Missouri to Washington, D.C. Dulles Intl Airport flight tickets
Delta
Jan 31
STL5:56 pmLambert-St Louis
4h 10m
1 stop
IAD11:06 pmWashington, D.C. Dulles Intl
Feb 3
IAD7:15 amWashington, D.C. Dulles Intl
5h 39m
1 stop
STL11:54 amLambert-St Louis
$255
Find similar
Delta
Apr 16
SGF6:53 pmSpringfield-Branson
4h 35m
1 stop
IAD12:28 amWashington, D.C. Dulles Intl
Apr 23
IAD6:00 amWashington, D.C. Dulles Intl
6h 01m
1 stop
SGF11:01 amSpringfield-Branson
$269
Find similar
Delta
Jan 29
STL9:59 amLambert-St Louis
3h 46m
1 stop
IAD2:45 pmWashington, D.C. Dulles Intl
Feb 3
IAD5:26 pmWashington, D.C. Dulles Intl
4h 17m
1 stop
STL8:43 pmLambert-St Louis
$285
Find similar

United Airlines flights from Missouri to Washington, D.C. Dulles Intl Airport

Our best United Airlines deals on Missouri to Washington, D.C. Dulles Intl Airport flight tickets
United Airlines
Jan 27
STL8:30 amLambert-St Louis
2h 10m
IAD11:40 amWashington, D.C. Dulles Intl
Jan 31
IAD8:40 amWashington, D.C. Dulles Intl
2h 33m
STL10:13 amLambert-St Louis
$235
Find similar
United Airlines
Jan 27
STL11:20 amLambert-St Louis
5h 15m
1 stop
IAD5:35 pmWashington, D.C. Dulles Intl
Jan 31
IAD8:40 amWashington, D.C. Dulles Intl
2h 33m
STL10:13 amLambert-St Louis
$245
Find similar
United Airlines
Jan 17
MCI12:35 pmKansas City
2h 34m
IAD4:09 pmWashington, D.C. Dulles Intl
Jan 24
IAD1:05 pmWashington, D.C. Dulles Intl
3h 05m
MCI3:10 pmKansas City
$250
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Missouri to Washington, D.C. Dulles Intl Airport 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 December 22, 2025.
Use the filters below to find and compare flights from Missouri to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Kansas CityWashington, D.C.

MCI - IAD

MCIIAD

Kansas City

Thu 1/8

8:59 am-2:08 pm

1 stop28h 09m

Washington, D.C. Dulles Intl

Wed 1/14

6:00 am-10:31 am

2 stops29h 31m

$204

St. LouisWashington, D.C.

STL - IAD

STLIAD

Lambert-St Louis

Thu 1/29

5:42 pm-8:40 am

1 stop13h 58m

Washington, D.C. Dulles Intl

Fri 2/6

2:58 pm-11:33 pm

2 stops9h 35m

$208

Kansas CityWashington, D.C.

MCI - IAD

MCIIAD

Kansas City

Thu 2/26

9:24 pm-10:43 am

2 stops12h 19m

Washington, D.C. Dulles Intl

Sun 3/1

5:39 pm-9:53 am

1 stop17h 14m

$215

Kansas CityWashington, D.C.

MCI - IAD

MCIIAD

Kansas City

Sat 1/17

6:00 am-2:55 pm

1 stop7h 55m

Washington, D.C. Dulles Intl

Sat 1/24

7:00 am-5:15 pm

1 stop11h 15m

$226

St. LouisWashington, D.C.

STL - IAD

STLIAD

Lambert-St Louis

Fri 1/30

8:22 pm-10:44 am

1 stop13h 22m

Washington, D.C. Dulles Intl

Mon 2/2

1:31 pm-11:33 pm

1 stop11h 02m

$231

Kansas CityWashington, D.C.

MCI - IAD

MCIIAD

Kansas City

Sat 1/17

6:00 am-2:55 pm

1 stop7h 55m

Washington, D.C. Dulles Intl

Sun 1/18

9:05 am-4:30 pm

1 stop8h 25m

$231

St. LouisWashington, D.C.

STL - IAD

STLIAD

Lambert-St Louis

Tue 1/27

8:30 am-11:40 am

Nonstop2h 10m

Washington, D.C. Dulles Intl

Sat 1/31

8:40 am-10:13 am

Nonstop2h 33m

$235

St. LouisWashington, D.C.

STL - IAD

STLIAD

Lambert-St Louis

Tue 1/27

11:20 am-5:35 pm

1 stop5h 15m

Washington, D.C. Dulles Intl

Sat 1/31

8:40 am-10:13 am

Nonstop2h 33m

$245

SpringfieldWashington, D.C.

SGF - IAD

SGFIAD

Springfield-Branson

Thu 4/16

6:53 pm-12:28 am

1 stop4h 35m

Washington, D.C. Dulles Intl

Thu 4/23

6:00 am-11:01 am

1 stop6h 01m

$269

SpringfieldWashington, D.C.

SGF - IAD

SGFIAD

Springfield-Branson

Thu 4/16

6:53 pm-12:28 am

1 stop4h 35m

Washington, D.C. Dulles Intl

Thu 4/23

6:00 am-11:01 am

1 stop6h 01m

$294

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 Washington, D.C. from

How to get the cheapest flight ticket from Missouri to Washington, D.C. Dulles Intl Airport

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 Washington, D.C. Dulles Intl Airport?

In general, March is the cheapest month to fly from Missouri to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $290. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of March, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $310.

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Friday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $814. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Missouri to Washington, D.C. Dulles Intl Airport for around $1,149.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from Missouri in the evening is the least expensive time of day to depart. momondo users have found prices as low as $262 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,147 on average. Flights to Washington, D.C. Dulles Intl Airport from Missouri at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Missouri to Washington, D.C. Dulles Intl flight route?

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

How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Missouri when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $372 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Missouri for as low as $212 on momondo.

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

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

You could potentially save up to 18% on your flight if you consider stops on a Missouri to Washington, D.C. Dulles Intl Airport flight.

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

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

Best Price Found

$268

Fastest flight time

2h 06m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from Missouri in the past 72 hours is $268. The best round-trip flight deal from Missouri to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $559.
The fastest flight from Missouri to Washington, D.C. Dulles Intl Airport takes 2h 06m
Direct flights go from Missouri to Washington, D.C. Dulles Intl Airport every day.
Search flight deals

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

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

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

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

    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 Missouri to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl Airport 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 Washington, D.C. Dulles Intl Airport. 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 Missouri to Washington, D.C. Dulles Intl Airport?

Best airlines flying from Missouri to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from Missouri to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $113Free CancellationRating
5.8
3,075 reviews
Search Frontier flights
DeltaPriceFrom $124Free CancellationRating
7.9
8,014 reviews
Search Delta flights
American AirlinesPriceFrom $250Free CancellationRating
7.2
11,054 reviews
Search American Airlines flights
United AirlinesPriceFrom $252Free CancellationRating
7.4
9,106 reviews
Search United Airlines flights

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Winchester
Waldorf
Woodbridge
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Harpers Ferry
Gaithersburg
Reston
Manassas
Sterling
Fairfax

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Missouri to Washington, D.C.. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for Missouri to Washington, D.C. flights to just show those with flexible booking policies.

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

Once all potential Missouri to Washington, D.C. 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 Missouri to Washington, D.C. right now. Can momondo alert me if prices change?

Price alerts on flights to Washington, D.C. from Missouri are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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