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$86+ Cheap flights from Washington, D.C. (WAS) to Missouri

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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — STL
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheap flight deals from Washington, D.C. to Missouri

Keep the following information in mind while searching for Washington, D.C. to Missouri flight deals. Data was last updated March 28, 2025.

Round-trip from

$177
(Southwest)

One-way from

$86
(Booking.com)

Good round-trip deal

$273 or less

Good one-way deal

$108 or less
From Washington, D.C. (WAS) to Missouri
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One-way flight from Washington, D.C. (WAS) to Missouri
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Price to beat on a round-trip flight from Washington, D.C. (WAS) to Missouri.
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Price to beat on a one-way flight from Washington, D.C. (WAS) to Missouri.
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Find flight deals from Washington, D.C. to Missouri

Cheapest flights from Washington, D.C. to Missouri
Explore the most affordable flight options available from Washington, D.C. to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This Southwest deal was found by Cheapflights users on 3/27. 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 4/179:30 pmBWI - STL
Nonstop2h 15mSouthwest
Tue 4/222:55 pmSTL - BWI
Nonstop2h 00mSouthwest
Deal found 3/27$177
This American Airlines deal was found by Cheapflights users on 3/27. 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 6/106:00 amBWI - SGF
1 stop4h 51mAmerican Airlines
Wed 6/181:06 pmSGF - BWI
1 stop4h 16mAmerican Airlines
Deal found 3/27$199
This CheapOair deal was found by Cheapflights users on 3/27. 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.
Fri 4/256:00 pmDCA - MCI
1 stop26h 50mFrontier
Mon 4/288:40 pmMCI - DCA
1 stop19h 19mFrontier
Deal found 3/27$200
This CheapOair deal was found by Cheapflights users on 3/28. 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.
Sat 5/39:21 pmBWI - STL
1 stop27h 45mFrontier
Mon 5/55:45 pmSTL - BWI
1 stop21h 12mFrontier
Deal found 3/28$200
This Cheapflightsfares deal was found by Cheapflights users on 3/27. 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.
Sat 5/1712:51 pmBWI - MCI
1 stop9h 39mSpirit Airlines
Tue 5/205:46 amMCI - BWI
1 stop11h 02mSpirit Airlines
Deal found 3/27$207
This Delta deal was found by Cheapflights users on 3/27. 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.
Thu 5/225:40 amBWI - STL
1 stop4h 20mDelta
Tue 5/275:45 pmSTL - BWI
1 stop4h 35mDelta
Deal found 3/27$207
This Southwest deal was found by Cheapflights users on 3/27. 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 4/178:00 amDCA - STL
Nonstop2h 10mSouthwest
Thu 4/2412:30 pmSTL - DCA
1 stop7h 20mSouthwest
Deal found 3/27$207
This Booking.com deal was found by Cheapflights users on 3/27. 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.
Thu 5/85:26 pmIAD - STL
1 stop7h 40mFrontier
Sun 5/115:45 pmSTL - IAD
1 stop21h 51mFrontier
Deal found 3/27$208
This Delta deal was found by Cheapflights users on 3/28. 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.
Sat 5/36:00 amIAD - STL
1 stop4h 47mDelta
Mon 5/57:01 pmSTL - IAD
1 stop4h 27mDelta
Deal found 3/28$217
This Delta deal was found by Cheapflights users on 3/28. 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.
Sat 5/36:00 amDCA - STL
1 stop4h 28mDelta
Mon 5/54:05 pmSTL - DCA
1 stop6h 34mDelta
Deal found 3/28$217
This CheapOair deal was found by Cheapflights users on 3/27. 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.
Tue 4/157:00 amDCA - STL
1 stop27h 06mFrontier
Wed 4/166:51 pmSTL - DCA
1 stop16h 13mFrontier
Deal found 3/27$220
This American Airlines deal was found by Cheapflights users on 3/27. 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 4/178:22 amDCA - STL
Nonstop2h 30mAmerican Airlines
Thu 4/2410:48 amSTL - DCA
Nonstop2h 02mAmerican Airlines
Deal found 3/27$227

Cheapflights Fare Finder

Customize your flight search to find flights from Washington, D.C. 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, Cheapflights users made 2,558,603 searches. Data last updated March 28, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Missouri that are best for you.

Fly from

Washington, D.C.

Fly to

Missouri

Route

Depart

Return

Price

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Thu 4/17

9:30 pm-10:45 pm

Nonstop2h 15m

Lambert-St Louis

Tue 4/22

2:55 pm-5:55 pm

Nonstop2h 00m

$177

BaltimoreSpringfield

BWI - SGF

BWISGF

Baltimore/Washington

Tue 6/10

6:00 am-9:51 am

1 stop4h 51m

Springfield-Branson

Wed 6/18

1:06 pm-6:22 pm

1 stop4h 16m

$199

Washington, D.C.Kansas City

DCA - MCI

DCAMCI

Washington, D.C. Reagan-National

Fri 4/25

6:00 pm-7:50 pm

1 stop26h 50m

Kansas City

Mon 4/28

8:40 pm-4:59 pm

1 stop19h 19m

$200

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Sat 5/3

9:21 pm-12:06 am

1 stop27h 45m

Lambert-St Louis

Mon 5/5

5:45 pm-3:57 pm

1 stop21h 12m

$200

BaltimoreKansas City

BWI - MCI

BWIMCI

Baltimore/Washington

Sat 5/17

12:51 pm-9:30 pm

1 stop9h 39m

Kansas City

Tue 5/20

5:46 am-5:48 pm

1 stop11h 02m

$207

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Thu 5/22

5:40 am-9:00 am

1 stop4h 20m

Lambert-St Louis

Tue 5/27

5:45 pm-11:20 pm

1 stop4h 35m

$207

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Thu 4/17

8:00 am-9:10 am

Nonstop2h 10m

Lambert-St Louis

Thu 4/24

12:30 pm-8:50 pm

1 stop7h 20m

$207

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

Thu 5/8

5:26 pm-12:06 am

1 stop7h 40m

Lambert-St Louis

Sun 5/11

5:45 pm-4:36 pm

1 stop21h 51m

$208

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

Sat 5/3

6:00 am-9:47 am

1 stop4h 47m

Lambert-St Louis

Mon 5/5

7:01 pm-12:28 am

1 stop4h 27m

$217

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Sat 5/3

6:00 am-9:28 am

1 stop4h 28m

Lambert-St Louis

Mon 5/5

4:05 pm-11:39 pm

1 stop6h 34m

$217

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

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

Have a flexible travel schedule? Discover the best time to fly to Missouri from Washington, D.C. 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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Missouri

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

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. to Missouri (average of $311). Flying from Washington, D.C. to Missouri in March is currently the most expensive (average of $356). 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 WAS to MO?

Find hourly flight availability from Washington, D.C. to Missouri. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 28, 2025.

When flying from Washington, D.C. to Missouri, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Explore weekly flight availability from Washington, D.C. to Missouri. 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 March 28, 2025.

The most flights from WAS to USMO are scheduled on a Thursday (14 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Missouri by month

Plan your trip to Missouri by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Missouri ranges from 1.1 - 5.2 inches per month. May is typically the wettest month, when rainfall can reach 5.2 in. January is typically the driest time to visit Missouri when rainfall is around 1.1 in.

Temperature in Missouri by month

Plan your trip to Missouri by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Missouri, 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 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

Reviews of airlines servicing Missouri

Get insights into the airlines that provide service to Missouri. 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 Missouri. Reviews last updated March 28, 2025.
See what other customers who have flown with Southwest, Alaska Airlines and Delta from Washington, D.C. to Missouri have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,274 reviews

Boarding

8.2

Comfort

8.1

Food

7.1

Entertainment

7.6

Overall

8.1

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.1
Very good
4,274 reviews
Southwest
8.1
Very good
4,274 reviews

Boarding

8.2

Comfort

8.1

Food

7.1

Entertainment

7.6

Overall

8.1

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Alaska Airlines
8.0
Very good
9,798 reviews
Southwest
8.1
Very good
4,274 reviews

Boarding

8.2

Comfort

8.1

Food

7.1

Entertainment

7.6

Overall

8.1

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,897 reviews
Southwest
8.1
Very good
4,274 reviews

Boarding

8.2

Comfort

8.1

Food

7.1

Entertainment

7.6

Overall

8.1

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,603 reviews
Southwest
8.1
Very good
4,274 reviews

Boarding

8.2

Comfort

8.1

Food

7.1

Entertainment

7.6

Overall

8.1

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Allegiant Air
7.3
Good
731 reviews
Southwest
8.1
Very good
4,274 reviews

Boarding

8.2

Comfort

8.1

Food

7.1

Entertainment

7.6

Overall

8.1

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Missouri. 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 Washington, D.C. to Missouri one-way?

    The cheapest airlines for a one-way flight from Washington, D.C. to Missouri are Spirit Airlines ($86), United Airlines ($89), and Southwest ($89).

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

    The most popular flight routes from Washington, D.C. to Missouri are Washington, D.C. Dulles Intl - Lambert-St Louis, Washington, D.C. Dulles Intl - Kansas City and Washington, D.C. Reagan-National - Kansas City.

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

    No one likes to see their flight delayed. When booking a flight from Washington, D.C. to Missouri consider choosing GoJet (84%), Avianca (84%) or Copa Airlines (84%) as they are the most reliable in getting you off to your destination on time.

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

    Looking at all options, your cheapest flight can be booked for $88. While the most popular route (Washington, D.C. Dulles Intl - Lambert-St Louis) can be booked for $197 on average our data indicates $384 when flying from Washington, D.C. to Missouri.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington, D.C. to Missouri 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 Washington, D.C. to Missouri?

    Currently, August is the cheapest month in which you can book a flight from Washington, D.C. to Missouri (average of $311). Flying from Washington, D.C. to Missouri in March is currently the most expensive (average of $356). 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.

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Alternative routes for Washington, D.C. to Missouri

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

Discover the top 6 airlines that operate flights from Washington, D.C. to Missouri. 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$108Average$262FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$128Average$221FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$168Average$403FlexibilityNo cancel feeOn-time71%
DeltaCheapest$176Average$382FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$200Average$369FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$223Average$453FlexibilityNo cancel feeOn-time69%
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