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$95+ Cheap flights from Washington 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 5/16. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — STL
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheap flight deals from Washington to Missouri

Keep the following information in mind while searching for Washington to Missouri flight deals. Data was last updated April 17, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$220
(CheapOair)

One-way from

$95
(Delta)

Popular in

December

Cheapest in

January

Average price

$321

Good round-trip deal

$299 or less

Good one-way deal

$138 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Kansas City flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Kansas City flights.
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From Washington to Missouri
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One-way flight from Washington to Missouri
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Highest demand for flights based on searches. 0% potential increase in price ($1 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Washington to Missouri.
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Price to beat on a one-way flight from Washington to Missouri.
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Find flight deals from Washington to Missouri

Cheapest flights from Washington to Missouri
Explore the most affordable flight options available from Washington to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This CheapOair deal was found by Cheapflights users on 4/17. 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 amSEA - STL
1 stop26h 01mFrontier
Mon 4/286:58 pmSTL - SEA
1 stop7h 46mFrontier
Deal found 4/17$221
This Delta deal was found by Cheapflights users on 4/17. 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.
Fri 5/911:50 pmSEA - STL
1 stop9h 02mDelta
Tue 5/137:19 pmSTL - SEA
1 stop6h 40mDelta
Deal found 4/17$224
This Delta deal was found by Cheapflights users on 4/16. 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 5/275:30 amPDX - STL
1 stop6h 04mDelta
Tue 6/37:19 pmSTL - PDX
1 stop6h 24mDelta
Deal found 4/16$227
This Southwest deal was found by Cheapflights users on 4/16. 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 10/305:15 amSEA - STL
1 stop7h 40mSouthwest
Sun 11/22:30 pmSTL - SEA
1 stop7h 30mSouthwest
Deal found 4/16$234
This American Airlines deal was found by Cheapflights users on 4/17. 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 5/91:10 amSEA - STL
1 stop6h 44mAmerican Airlines
Tue 5/135:00 amSTL - SEA
1 stop7h 15mAmerican Airlines
Deal found 4/17$235
This Trip.com deal was found by Cheapflights users on 4/17. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/216:04 pmSEA - STL
Nonstop4h 00mMultiple Airlines
Wed 5/287:55 pmSTL - SEA
1 stop24h 15mMultiple Airlines
Deal found 4/17$236
This Mytrip deal was found by Cheapflights users on 4/17. 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 5/86:20 amPDX - STL
1 stop24h 49mFrontier
Mon 5/126:53 pmSTL - PDX
1 stop7h 45mFrontier
Deal found 4/17$243
This Delta deal was found by Cheapflights users on 4/17. 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 5/85:30 pmSEA - MCI
Nonstop3h 38mDelta
Wed 5/146:30 amMCI - SEA
Nonstop3h 55mDelta
Deal found 4/17$257
This Alaska Airlines deal was found by Cheapflights users on 4/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/276:04 pmSEA - STL
Nonstop4h 00mAlaska Airlines
Wed 6/46:18 pmSTL - SEA
Nonstop4h 27mAlaska Airlines
Deal found 4/16$257
This Mytrip deal was found by Cheapflights users on 4/17. 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 5/86:00 amSEA - MCI
2 stops12h 12mSpirit Airlines
Wed 5/146:45 pmMCI - SEA
1 stop7h 25mSpirit Airlines
Deal found 4/17$259
This Mytrip deal was found by Cheapflights users on 4/17. 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 5/17:01 pmPDX - SGF
1 stop24h 08mMultiple Airlines
Mon 5/59:59 pmSGF - PDX
1 stop22h 06mMultiple Airlines
Deal found 4/17$263
This American Airlines deal was found by Cheapflights users on 4/17. 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 6/1312:05 amSEA - MCI
1 stop7h 01mAmerican Airlines
Tue 6/177:49 pmMCI - SEA
1 stop6h 55mAmerican Airlines
Deal found 4/17$267

Cheapflights Fare Finder

Customize your flight search to find flights from Washington 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 April 17, 2025.
Use the filters below to find and compare flights from Washington to Missouri that are best for you.

Fly from

Washington

Fly to

Missouri

Route

Depart

Return

Price

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Sun 5/4

6:00 am-9:09 am

1 stop25h 09m

Lambert-St Louis

Sun 5/11

9:55 pm-6:00 pm

1 stop22h 05m

$221

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Fri 5/9

11:50 pm-10:52 am

1 stop9h 02m

Lambert-St Louis

Tue 5/13

7:19 pm-11:59 pm

1 stop6h 40m

$224

PortlandSt. Louis

PDX - STL

PDXSTL

Portland

Tue 5/27

5:30 am-1:34 pm

1 stop6h 04m

Lambert-St Louis

Tue 6/3

7:19 pm-11:43 pm

1 stop6h 24m

$227

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Fri 5/9

1:10 am-9:54 am

1 stop6h 44m

Lambert-St Louis

Tue 5/13

5:00 am-10:15 am

1 stop7h 15m

$235

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Wed 5/21

6:04 pm-12:04 am

Nonstop4h 00m

Lambert-St Louis

Wed 5/28

7:55 pm-6:10 pm

1 stop24h 15m

$236

PortlandSt. Louis

PDX - STL

PDXSTL

Portland

Thu 5/8

6:20 am-9:09 am

1 stop24h 49m

Lambert-St Louis

Mon 5/12

6:53 pm-12:38 am

1 stop7h 45m

$243

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Wed 5/7

5:00 am-5:45 pm

2 stops10h 45m

Lambert-St Louis

Mon 5/12

6:15 pm-12:30 am

1 stop8h 15m

$255

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Tue 5/27

6:04 pm-12:04 am

Nonstop4h 00m

Lambert-St Louis

Wed 6/4

6:18 pm-8:45 pm

Nonstop4h 27m

$257

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

Thu 5/8

5:30 pm-11:08 pm

Nonstop3h 38m

Kansas City

Wed 5/14

6:30 am-8:25 am

Nonstop3h 55m

$257

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

Thu 5/8

6:00 am-8:12 pm

2 stops12h 12m

Kansas City

Wed 5/14

6:45 pm-12:10 am

1 stop7h 25m

$259

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

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

Have a flexible travel schedule? Discover the best time to fly to Missouri from Washington 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 to Missouri

What is the cheapest month to book a flight from State of Washington to Missouri?

Currently, August is the cheapest month in which you can book a flight from State of Washington to Missouri (average of $311). Flying from State of Washington 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 WA to MO?

Find hourly flight availability from Washington 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 April 17, 2025.

When flying from State of Washington 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.

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 April 17, 2025.
Read through reviews of airlines operating flights from Washington to Missouri, such as Alaska Airlines, Southwest and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,887 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,887 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,280 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,916 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Hawaiian Airlines
7.9
Good
2,380 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,667 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

Find useful and relevant information for your journey from Washington to Missouri. 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 State of Washington to Missouri flight route?

    This flight path from Washington to Missouri 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 State of Washington to Missouri one-way?

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $95. Frontier flights start at $95 while deals on Southwest start at $100 one-way.

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

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

  • How can I find direct flights from Washington to Missouri?

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

  • Can I find deals for business class flights from Washington to Missouri?

    Yes. Cheapflights offers flight deals from Washington 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 State of Washington to Missouri?

    Currently, August is the cheapest month in which you can book a flight from State of Washington to Missouri (average of $311). Flying from State of Washington 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Washington to Missouri

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Washington to Missouri

Discover the top 8 airlines that operate flights from Washington 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$118Average$214FlexibilityNo cancel feeOn-time62%
DeltaCheapest$138Average$418FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$186Average$507FlexibilityNo cancel feeOn-time71%
Spirit AirlinesCheapest$198Average$377FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$209Average$519FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$216Average$504FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$216Average$478FlexibilityNo cancel feeOn-time63%
Hawaiian AirlinesCheapest$217Average$411FlexibilityNo cancel feeOn-time85%

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