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Washington, D.C.

$55+ Cheap flights from Missouri to Washington, D.C. (WAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/26. Fares are subject to change and may not be available on all flights or dates of travel.
STL — WAS
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Missouri to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Missouri (USMO) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$120
(CheapOair)

One-way from

$55
(Frontier)

Good round-trip deal

$256 or less

Good one-way deal

$119 or less
From Missouri to Washington, D.C. (WAS)
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One-way flight from Missouri to Washington, D.C. (WAS)
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Price to beat on a round-trip flight from Missouri to Washington, D.C. (WAS).
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Price to beat on a one-way flight from Missouri to Washington, D.C. (WAS).
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Find flight deals from Missouri to Washington, D.C.

Cheapest flights from Missouri to Washington, D.C.
Explore the most affordable flight options available from Missouri to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This Mytrip deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/85:05 pmSTL - BWI
1 stop13h 46mFrontier
Tue 2/1110:10 amBWI - STL
1 stop14h 21mFrontier
Deal found 1/20$113
This CheapOair deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/124:39 pmMCI - BWI
1 stop6h 53mMultiple Airlines
Mon 3/1712:30 pmBWI - MCI
1 stop8h 24mMultiple Airlines
Deal found 1/21$167
This FlightHub deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/64:28 pmSTL - BWI
1 stop6h 31mMultiple Airlines
Tue 2/1110:10 amBWI - STL
1 stop14h 21mMultiple Airlines
Deal found 1/21$168
This American Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/135:45 amSTL - BWI
1 stop4h 25mAmerican Airlines
Tue 2/188:09 pmBWI - STL
1 stop4h 47mAmerican Airlines
Deal found 1/21$197
This Delta deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1810:30 amSTL - BWI
1 stop5h 25mDelta
Tue 3/256:00 amBWI - STL
1 stop4h 36mDelta
Deal found 1/20$199
This American Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/185:49 amSGF - DCA
1 stop4h 11mAmerican Airlines
Tue 2/252:54 pmDCA - SGF
1 stop6h 53mAmerican Airlines
Deal found 1/21$199
This American Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/184:32 pmSGF - IAD
1 stop6h 21mAmerican Airlines
Tue 2/256:30 amIAD - SGF
1 stop5h 22mAmerican Airlines
Deal found 1/21$199
This Southwest deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/135:20 amSTL - BWI
1 stop4h 05mSouthwest
Tue 2/188:50 pmBWI - STL
Nonstop2h 25mSouthwest
Deal found 1/21$204
This Mytrip deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/64:28 pmSTL - BWI
1 stop6h 31mSpirit Airlines
Mon 2/108:04 pmBWI - STL
2 stops19h 39mSpirit Airlines
Deal found 1/21$218
This American Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/146:16 pmSTL - DCA
Nonstop2h 14mAmerican Airlines
Sun 2/169:14 pmDCA - STL
Nonstop2h 30mAmerican Airlines
Deal found 1/20$229
This American Airlines deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2112:25 pmSGF - BWI
1 stop4h 16mAmerican Airlines
Tue 2/2512:30 pmBWI - SGF
1 stop5h 09mAmerican Airlines
Deal found 1/19$229
This Booking.com deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/215:20 pmSTL - IAD
1 stop22h 53mFrontier
Mon 2/246:03 pmIAD - STL
1 stop6h 40mFrontier
Deal found 1/20$230

Find flights from Missouri to Washington, D.C. within your budget

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, Cheapflights users made 2,558,603 searches. Data last updated January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Wed 2/5

5:05 pm-8:06 am

1 stop14h 01m

Baltimore/Washington

Tue 2/11

10:10 am-11:31 pm

1 stop14h 21m

$120

Kansas CityBaltimore

MCI - BWI

MCIBWI

Kansas City

Wed 3/12

4:39 pm-12:32 am

1 stop6h 53m

Baltimore/Washington

Mon 3/17

12:30 pm-7:54 pm

1 stop8h 24m

$167

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Thu 2/6

4:28 pm-11:59 pm

1 stop6h 31m

Baltimore/Washington

Tue 2/11

10:10 am-11:31 pm

1 stop14h 21m

$168

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Thu 2/13

5:45 am-11:10 am

1 stop4h 25m

Baltimore/Washington

Tue 2/18

8:09 pm-11:56 pm

1 stop4h 47m

$197

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Tue 3/18

10:30 am-4:55 pm

1 stop5h 25m

Baltimore/Washington

Tue 3/25

6:00 am-9:36 am

1 stop4h 36m

$199

SpringfieldWashington, D.C.

SGF - DCA

SGFDCA

Springfield-Branson

Tue 2/18

5:49 am-11:00 am

1 stop4h 11m

Washington, D.C. Reagan-National

Tue 2/25

2:54 pm-8:47 pm

1 stop6h 53m

$199

SpringfieldWashington, D.C.

SGF - IAD

SGFIAD

Springfield-Branson

Tue 2/18

4:32 pm-11:53 pm

1 stop6h 21m

Washington, D.C. Dulles Intl

Tue 2/25

6:30 am-10:52 am

1 stop5h 22m

$199

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Thu 2/13

5:20 am-10:25 am

1 stop4h 05m

Baltimore/Washington

Tue 2/18

8:50 pm-10:15 pm

Nonstop2h 25m

$204

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Thu 2/6

4:28 pm-11:59 pm

1 stop6h 31m

Baltimore/Washington

Mon 2/10

8:04 pm-2:43 pm

2 stops19h 39m

$218

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

Fri 2/14

6:16 pm-9:30 pm

Nonstop2h 14m

Washington, D.C. Reagan-National

Sun 2/16

9:14 pm-10:44 pm

Nonstop2h 30m

$229

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 60 results
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Best time to book a flight from Missouri to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Missouri with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Missouri to Washington, D.C.

Get recent, data-driven insights about flights from Missouri to Washington, D.C. including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Missouri to Washington, D.C.?

Currently, August is the cheapest month in which you can book a flight from Missouri to Washington, D.C. (average of $241). Flying from Missouri to Washington, D.C. in March is currently the most expensive (average of $290). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MO to WAS?

Find hourly flight availability from Missouri to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Missouri to Washington, D.C. as you normally would.

Weekly flight availability from Missouri to Washington, D.C.

Explore weekly flight availability from Missouri to Washington, D.C.. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated January 21, 2025.

The most flights from USMO to WAS are scheduled on a Monday (14 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 on average).

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington, D.C.. Reviews last updated January 21, 2025.
Peruse reviews from past customers who have flown with Frontier, American Airlines and Southwest from Missouri to Washington, D.C. to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,662 reviews

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,662 reviews
Southwest
8.1
Very good
4,662 reviews

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,706 reviews
Southwest
8.1
Very good
4,662 reviews

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,662 reviews

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,984 reviews
Southwest
8.1
Very good
4,662 reviews

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,662 reviews

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

Find useful and relevant information for your journey from Missouri to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Missouri to Washington, D.C. flight route?

    This flight path from Missouri to Washington, D.C. was viewed by 5 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines to fly from Missouri to Washington, D.C. one-way?

    The cheapest airlines for a one-way flight from Missouri to Washington, D.C. are Frontier ($55), Spirit Airlines ($81), and Southwest ($90).

  • What are the most popular routes from Missouri to Washington, D.C.?

    When deciding which route to take from Missouri to Washington, D.C. consider Lambert-St Louis - Washington, D.C. Dulles Intl, Kansas City - Washington, D.C. Dulles Intl or Lambert-St Louis - Baltimore/Washington as they are the most popular.

  • What are the cheapest flights from Missouri to Washington, D.C.?

    While on average a flight from Missouri to Washington, D.C. is generally $337, our data shows the cheapest flight currently is $150. When looking at the most popular route, (Lambert-St Louis - Washington, D.C. Dulles Intl), you can expect to pay $164 for that flight.

  • Can I find deals for flights from Missouri to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Missouri to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Missouri to Washington, D.C.?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Missouri to Washington, D.C..

  • Can I find deals for business class flights from Missouri to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Missouri to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Missouri to Washington, D.C.?

    Currently, August is the cheapest month in which you can book a flight from Missouri to Washington, D.C. (average of $241). Flying from Missouri to Washington, D.C. in March is currently the most expensive (average of $290). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Missouri?

Book flights to Missouri if you plan to visit one of these locations
Fairfax
Arlington
Alexandria
Springfield
Silver Spring
Rockville
Tysons
Gaithersburg
Fredericksburg
Linthicum Heights
Laurel
Falls Church
Greenbelt
Easton
Oxon Hill
Herndon
Woodbridge
Bowie
Reston
National Harbor

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Alternative routes for Missouri to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Missouri to Washington, D.C.

Discover the top 6 airlines that operate flights from Missouri to Washington, D.C.. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$98Average$200FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$129Average$443FlexibilityNo cancel feeOn-time71%
Spirit AirlinesCheapest$138Average$294FlexibilityNo cancel feeOn-time65%
DeltaCheapest$177Average$343FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$200Average$359FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$211Average$389FlexibilityNo cancel feeOn-time69%
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