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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
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Missouri to Washington, D.C.

Keep the following information in mind while searching for Missouri to Washington, D.C. flight deals. Data was last updated February 20, 2025.

Round-trip from

$115
(Booking.com)

One-way from

$55
(Frontier)

Good round-trip deal

$269 or less

Good one-way deal

$114 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 February 20, 2025.

This Booking.com deal was found by Cheapflights users on 2/19. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/24:57 pmSTL - BWI
1 stop21h 00mFrontier
Mon 4/78:25 amBWI - STL
1 stop16h 21mFrontier
Deal found 2/19$115
This FlightHub deal was found by Cheapflights users on 2/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/246:11 pmSTL - BWI
1 stop5h 45mMultiple Airlines
Sun 4/276:38 pmBWI - STL
1 stop6h 26mMultiple Airlines
Deal found 2/20$139
This Priceline deal was found by Cheapflights users on 2/18. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/610:20 amMCI - BWI
1 stop9h 36mMultiple Airlines
Mon 3/1712:30 pmBWI - MCI
1 stop8h 24mMultiple Airlines
Deal found 2/18$151
This Cheapflightsfares deal was found by Cheapflights users on 2/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/610:20 amMCI - BWI
1 stop9h 36mSpirit Airlines
Sun 3/99:51 pmBWI - MCI
1 stop12h 24mSpirit Airlines
Deal found 2/20$155
This FlightHub deal was found by Cheapflights users on 2/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/156:11 pmSTL - BWI
1 stop22h 17mSpirit Airlines
Wed 4/236:33 pmBWI - STL
1 stop23h 43mSpirit Airlines
Deal found 2/20$157
This American Airlines deal was found by Cheapflights users on 2/19. 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.
Wed 4/236:37 pmMCI - BWI
1 stop4h 47mAmerican Airlines
Sat 4/265:00 amBWI - MCI
1 stop5h 09mAmerican Airlines
Deal found 2/19$159
This Southwest deal was found by Cheapflights users on 2/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1610:30 amSTL - BWI
1 stop3h 55mSouthwest
Mon 4/214:45 pmBWI - STL
1 stop4h 50mSouthwest
Deal found 2/20$192
This Delta deal was found by Cheapflights users on 2/20. 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 3/2510:19 amSTL - BWI
1 stop4h 21mDelta
Wed 3/266:00 amBWI - STL
1 stop7h 00mDelta
Deal found 2/20$197
This American Airlines deal was found by Cheapflights users on 2/19. 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.
Sat 3/296:40 pmSGF - BWI
1 stop4h 18mAmerican Airlines
Sat 4/55:55 pmBWI - SGF
1 stop5h 08mAmerican Airlines
Deal found 2/19$199
This American Airlines deal was found by Cheapflights users on 2/19. 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.
Sat 3/295:15 pmSGF - DCA
1 stop5h 00mAmerican Airlines
Sat 4/511:41 amDCA - SGF
1 stop5h 10mAmerican Airlines
Deal found 2/19$199
This Booking.com deal was found by Cheapflights users on 2/19. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/37:04 pmSTL - DCA
1 stop25h 55mFrontier
Thu 3/67:00 amDCA - STL
1 stop27h 16mFrontier
Deal found 2/19$210
This Frontier deal was found by Cheapflights users on 2/19. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/1010:36 amSTL - IAD
1 stop5h 37mFrontier
Fri 3/144:10 pmIAD - STL
1 stop8h 39mFrontier
Deal found 2/19$210

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 February 20, 2025.

Fly from

Missouri

Fly to

Washington, D.C.

Route

Depart

Return

Price

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Wed 4/2

4:57 pm-2:57 pm

1 stop21h 00m

Baltimore/Washington

Mon 4/7

8:25 am-11:46 pm

1 stop16h 21m

$115

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Thu 4/24

6:11 pm-12:56 am

1 stop5h 45m

Baltimore/Washington

Sun 4/27

6:38 pm-12:04 am

1 stop6h 26m

$139

Kansas CityBaltimore

MCI - BWI

MCIBWI

Kansas City

Thu 3/6

10:20 am-8:56 pm

1 stop9h 36m

Baltimore/Washington

Mon 3/17

12:30 pm-7:54 pm

1 stop8h 24m

$151

Kansas CityBaltimore

MCI - BWI

MCIBWI

Kansas City

Thu 3/6

10:20 am-8:56 pm

1 stop9h 36m

Baltimore/Washington

Sun 3/9

9:51 pm-9:15 am

1 stop12h 24m

$155

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Tue 4/15

6:11 pm-5:28 pm

1 stop22h 17m

Baltimore/Washington

Wed 4/23

6:33 pm-5:16 pm

1 stop23h 43m

$157

Kansas CityBaltimore

MCI - BWI

MCIBWI

Kansas City

Wed 4/23

6:37 pm-12:24 am

1 stop4h 47m

Baltimore/Washington

Sat 4/26

5:00 am-9:09 am

1 stop5h 09m

$159

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Wed 4/16

10:30 am-3:25 pm

1 stop3h 55m

Baltimore/Washington

Mon 4/21

4:45 pm-8:35 pm

1 stop4h 50m

$192

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Tue 3/25

10:19 am-3:40 pm

1 stop4h 21m

Baltimore/Washington

Wed 3/26

6:00 am-12:00 pm

1 stop7h 00m

$197

SpringfieldBaltimore

SGF - BWI

SGFBWI

Springfield-Branson

Sat 3/29

6:40 pm-11:58 pm

1 stop4h 18m

Baltimore/Washington

Sat 4/5

5:55 pm-10:03 pm

1 stop5h 08m

$199

SpringfieldWashington, D.C.

SGF - DCA

SGFDCA

Springfield-Branson

Sat 3/29

5:15 pm-11:15 pm

1 stop5h 00m

Washington, D.C. Reagan-National

Sat 4/5

11:41 am-3:51 pm

1 stop5h 10m

$199

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

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 $309). Flying from Missouri to Washington, D.C. in June is currently the most expensive (average of $389). 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 February 20, 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 February 20, 2025.

The most flights from USMO to WAS are scheduled on a Monday (12 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 February 20, 2025.
Peruse reviews from past customers who have flown with Southwest, Alaska Airlines and Delta 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
4,411 reviews

Food

7.1

Boarding

8.2

Comfort

8.1

Overall

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Comfort

8.1

Overall

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Alaska Airlines
8.0
Very good
9,697 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Comfort

8.1

Overall

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,219 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Comfort

8.1

Overall

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,765 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Comfort

8.1

Overall

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Allegiant Air
7.3
Good
765 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Comfort

8.1

Overall

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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.

  • 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 ($67), and American Airlines ($80).

  • 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 Kansas City - Washington, D.C. Reagan-National as they are the most popular.

  • What are the most reliable airlines from Missouri to Washington, D.C.?

    Consider Avianca (87%), Copa Airlines (87%) or GoJet (80%) when booking your flight. These represent the most reliable airlines when flying from Missouri to Washington, D.C..

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

    While on average a flight from Missouri to Washington, D.C. is generally $645, our data shows the cheapest flight currently is $124. When looking at the most popular route, (Lambert-St Louis - Washington, D.C. Dulles Intl), you can expect to pay $171 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 $309). Flying from Missouri to Washington, D.C. in June is currently the most expensive (average of $389). 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
Arlington
Alexandria
Fairfax
Springfield
Rockville
Tysons
Gaithersburg
Silver Spring
Fredericksburg
Linthicum Heights
Laurel
Falls Church
Woodbridge
Easton
Herndon
Bowie
Reston
National Harbor
Oxon Hill
Gettysburg

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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.
Dallas/Fort Worth to Dulles Intl flights
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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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$98Average$204FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$129Average$397FlexibilityNo cancel feeOn-time71%
Spirit AirlinesCheapest$138Average$299FlexibilityNo cancel feeOn-time65%
DeltaCheapest$177Average$341FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$200Average$363FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$211Average$387FlexibilityNo cancel feeOn-time69%
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