Cheap flights from Missouri to Washington, D.C. from $64

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 8/31. 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 Missouri to Washington, D.C.

Cheap round-trip flights

Spirit Airlines Logo
2:30 pm - 10:09 pmSTL-BWI
6h 39m1 stop
Spirit Airlines Logo
2:30 pm - 1:32 pmBWI-STL
24h 02m1 stop
$154Spirit Airlines
Find Deal
Fri, Aug 22 - Sun, Aug 24
Spirit Airlines Logo
2:30 pm - 10:09 pmSTL-BWI
6h 39m1 stop
Spirit Airlines Logo
2:30 pm - 1:32 pmBWI-STL
24h 02m1 stop
$161Spirit Airlines
Find Deal
Fri, Aug 22 - Sun, Aug 24
Frontier Logo
7:54 pm - 5:44 pmSTL-BWI
20h 50m1 stop
Frontier Logo
2:53 pm - 1:07 pmBWI-STL
23h 14m1 stop
$205Frontier
Find Deal
Wed, Aug 20 - Wed, Aug 27
Frontier Logo
7:54 pm - 5:57 pmSTL-BWI
21h 03m1 stop
Frontier Logo
6:27 pm - 9:11 amBWI-STL
15h 44m1 stop
$207Frontier
Find Deal
Sat, Aug 23 - Mon, Aug 25
 Logo
12:05 pm - 10:28 pmSTL-BWI
9h 23m1 stop
 Logo
6:22 am - 3:04 pmBWI-STL
9h 42m1 stop
Thu, Sep 4 - Mon, Sep 8
American Airlines Logo
6:02 am - 9:03 amSTL-DCA
2h 01mnonstop
American Airlines Logo
7:51 pm - 9:02 pmDCA-STL
2h 11mnonstop
$216American Airlines
Find Deal
Sat, Aug 23 - Mon, Aug 25
American Airlines Logo
6:00 am - 9:29 amMCI-DCA
2h 29mnonstop
American Airlines Logo
1:55 pm - 3:40 pmDCA-MCI
2h 45mnonstop
$217American Airlines
Find Deal
Sun, Aug 24 - Tue, Aug 26
Southwest Logo
7:25 pm - 10:30 pmSTL-DCA
2h 05mnonstop
Southwest Logo
6:50 pm - 8:00 pmDCA-STL
2h 10mnonstop
$217Southwest
Find Deal
Thu, Aug 28 - Thu, Sep 4
Southwest Logo
10:30 am - 2:50 pmSTL-BWI
3h 20m1 stop
Southwest Logo
6:35 am - 7:45 amBWI-STL
2h 10mnonstop
$223Southwest
Find Deal
Sat, Aug 30 - Sat, Sep 6
 Logo
2:30 pm - 10:09 pmSTL-BWI
6h 39m1 stop
 Logo
5:26 pm - 9:11 amBWI-STL
16h 45m1 stop
Fri, Aug 15 - Mon, Aug 18

Spirit Airlines flights from Missouri to Washington, D.C.

Our best Spirit Airlines deals on Missouri to Washington, D.C. flight tickets
Spirit Airlines
Aug 22
STL2:30 pmLambert-St Louis
6h 39m
1 stop
BWI10:09 pmBaltimore/Washington
Aug 24
BWI2:30 pmBaltimore/Washington
24h 02m
1 stop
STL1:32 pmLambert-St Louis
Spirit Airlines
Aug 22
STL2:30 pmLambert-St Louis
6h 39m
1 stop
BWI10:09 pmBaltimore/Washington
Aug 24
BWI2:30 pmBaltimore/Washington
24h 02m
1 stop
STL1:32 pmLambert-St Louis
Spirit Airlines
Aug 28
STL2:30 pmLambert-St Louis
6h 39m
1 stop
BWI10:09 pmBaltimore/Washington
Sep 3
BWI2:30 pmBaltimore/Washington
21h 20m
1 stop
STL10:50 amLambert-St Louis

American Airlines flights from Missouri to Washington, D.C.

Our best American Airlines deals on Missouri to Washington, D.C. flight tickets
American Airlines
Aug 23
STL6:02 amLambert-St Louis
2h 01m
DCA9:03 amWashington, D.C. Reagan-National
Aug 25
DCA7:51 pmWashington, D.C. Reagan-National
2h 11m
STL9:02 pmLambert-St Louis
American Airlines
Aug 24
MCI6:00 amKansas City
2h 29m
DCA9:29 amWashington, D.C. Reagan-National
Aug 26
DCA1:55 pmWashington, D.C. Reagan-National
2h 45m
MCI3:40 pmKansas City
American Airlines
Aug 23
MCI11:04 amKansas City
6h 26m
1 stop
BWI6:30 pmBaltimore/Washington
Aug 25
BWI6:00 amBaltimore/Washington
5h 12m
1 stop
MCI10:12 amKansas City

momondo Fare Finder

 
Customize your flight search to find flights from Missouri to Washington, D.C. 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 August 1, 2025.
Use the filters below to find and compare flights from Missouri to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Fri 8/22

2:30 pm-10:09 pm

1 stop6h 39m

Baltimore/Washington

Sun 8/24

2:30 pm-1:32 pm

1 stop24h 02m

$154

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Fri 8/22

2:30 pm-10:09 pm

1 stop6h 39m

Baltimore/Washington

Sun 8/24

2:30 pm-1:32 pm

1 stop24h 02m

$161

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Wed 8/20

7:54 pm-5:44 pm

1 stop20h 50m

Baltimore/Washington

Wed 8/27

2:53 pm-1:07 pm

1 stop23h 14m

$205

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Sat 8/23

7:54 pm-5:57 pm

1 stop21h 03m

Baltimore/Washington

Mon 8/25

6:27 pm-9:11 am

1 stop15h 44m

$207

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Thu 9/4

12:05 pm-10:28 pm

1 stop9h 23m

Baltimore/Washington

Mon 9/8

6:22 am-3:04 pm

1 stop9h 42m

$213

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

Sat 8/23

6:02 am-9:03 am

Nonstop2h 01m

Washington, D.C. Reagan-National

Mon 8/25

7:51 pm-9:02 pm

Nonstop2h 11m

$216

Kansas CityWashington, D.C.

MCI - DCA

MCIDCA

Kansas City

Sun 8/24

6:00 am-9:29 am

Nonstop2h 29m

Washington, D.C. Reagan-National

Tue 8/26

1:55 pm-3:40 pm

Nonstop2h 45m

$217

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

Thu 8/28

7:25 pm-10:30 pm

Nonstop2h 05m

Washington, D.C. Reagan-National

Thu 9/4

6:50 pm-8:00 pm

Nonstop2h 10m

$217

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Sat 8/30

10:30 am-2:50 pm

1 stop3h 20m

Baltimore/Washington

Sat 9/6

6:35 am-7:45 am

Nonstop2h 10m

$223

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Fri 8/15

2:30 pm-10:09 pm

1 stop6h 39m

Baltimore/Washington

Mon 8/18

5:26 pm-9:11 am

1 stop16h 45m

$224

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.

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.?

The month of August is, on average, the cheapest month to fly to Washington, D.C. from Missouri, with most prices found around $229. If you’re not able to fly to Washington, D.C. in August, then November is your next best option. Flight prices from Missouri to Washington, D.C. during November average around $229.

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

On average, the least expensive day to fly to Washington, D.C. from Missouri is on a Friday. momondo users have found tickets for Friday departures for as low as $369. However, this price may fluctuate depending on the airline, the season, and holidays. 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. for around $480.

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

In the evening is the cheapest time of day to fly from Missouri to Washington, D.C. when you can find flight prices for as low as $283. Flying to Washington, D.C. in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets at noon because they tend to be around $980. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

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

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

You are more likely to see cheaper flights to Washington, D.C. from Missouri when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $324 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from Missouri for as low as $239 on momondo.

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

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

No. A direct flight is the cheapest option for a flight between Missouri to Washington, D.C..

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

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

Best Price Found

$64

Fastest flight time

1h 55m

Direct flights

Every day

Airports in Washington, D.C.

3 airports
The best one-way flight to Washington, D.C. from Missouri in the past 72 hours is $64. The best round-trip flight deal from Missouri to Washington, D.C. found on momondo in the last 72 hours is $154.
The fastest flight from Missouri to Washington, D.C. takes 1h 55m
Direct flights go from Missouri to Washington, D.C. every day.
There are 3 airports near Washington, D.C.: Washington, D.C. Reagan-National (DCA), Baltimore/Washington (BWI), Washington, D.C. Dulles Intl (IAD)

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

    Prices for flights from Missouri to Washington, D.C. refresh daily.

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

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

    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 Missouri to Washington, D.C..

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

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


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

Compare and see reviews for airlines that fly from Missouri to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $111Free CancellationRating
5.8
3,241 reviews
Search Frontier flights
American AirlinesPriceFrom $129Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Spirit AirlinesPriceFrom $138Free CancellationRating
6.3
8,054 reviews
Search Spirit Airlines flights
DeltaPriceFrom $168Free CancellationRating
8.0
7,983 reviews
Search Delta flights
SouthwestPriceFrom $190Free CancellationRating
8.0
4,246 reviews
Search Southwest flights
United AirlinesPriceFrom $209Free CancellationRating
7.4
8,904 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
Gettysburg
Arlington
National Harbor
Woodbridge
Laurel
Tysons
Silver Spring
Waldorf
Fredericksburg
Manassas
Towson
Rockville
Colonial Beach
Gaithersburg
Fairfax
Reston
Glen Burnie
Linthicum Heights
Springfield

Why use momondo?

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

It is quick and easy to find Missouri to Washington, D.C. flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Washington, D.C. that suits you.

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

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

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

Once you have performed a search for Missouri to Washington, D.C. 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 Missouri to Washington, D.C. right now. Can momondo alert me if prices change?

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


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1 adult
Wed 8/6
Wed 8/13

Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.