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$63+ 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 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — STL
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
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 July 3, 2025.

Round-trip from

$235
(Orbitz)

One-way from

$63
(Priceline)

Popular in

May

Cheapest in

January

Average price

$394

Good round-trip deal

$289 or less

Good one-way deal

$164 or less
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. 11% potential increase in price ($44 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 3, 2025.

This United Airlines deal was found by Cheapflights users on 6/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/295:05 amSEA - MCI
1 stop5h 40mUnited Airlines
Fri 10/311:47 pmMCI - SEA
2 stops9h 04mUnited Airlines
Deal found 6/30$222
This Delta deal was found by Cheapflights users on 6/30. 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.
Wed 10/295:30 pmSEA - MCI
Nonstop3h 31mDelta
Fri 10/316:40 amMCI - SEA
Nonstop4h 10mDelta
Deal found 6/30$227
This Orbitz deal was found by Cheapflights users on 7/1. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/186:25 amSEA - MCI
1 stop10h 39mFrontier
Fri 8/226:02 pmMCI - SEA
1 stop8h 32mFrontier
Deal found 7/1$235
This Orbitz deal was found by Cheapflights users on 7/2. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/216:03 pmSEA - STL
Nonstop3h 56mMultiple Airlines
Sun 8/247:54 pmSTL - SEA
1 stop6h 40mMultiple Airlines
Deal found 7/2$242
This Delta deal was found by Cheapflights users on 7/3. 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.
Sun 8/315:30 amSEA - STL
1 stop5h 59mDelta
Sat 9/137:40 amSTL - SEA
1 stop6h 59mDelta
Deal found 7/3$243
This Kiwi.com deal was found by Cheapflights users on 7/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2211:34 amSEA - STL
Nonstop4h 00mHawaiian Airlines
Sun 8/316:00 amSTL - SEA
Nonstop4h 30mHawaiian Airlines
Deal found 7/3$245
This United Airlines deal was found by Cheapflights users on 7/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/611:58 pmSEA - STL
1 stop7h 30mUnited Airlines
Sat 8/94:45 pmSTL - SEA
1 stop6h 38mUnited Airlines
Deal found 7/2$247
This Southwest deal was found by Cheapflights users on 7/3. 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 10/111:10 amSEA - STL
2 stops9h 05mSouthwest
Fri 10/312:45 pmSTL - SEA
1 stop8h 45mSouthwest
Deal found 7/3$248
This Alaska Airlines deal was found by Cheapflights users on 7/3. 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.
Wed 9/311:31 amSEA - STL
Nonstop4h 03mAlaska Airlines
Fri 9/126:30 pmSTL - SEA
Nonstop4h 29mAlaska Airlines
Deal found 7/3$249
This Travelocity deal was found by Cheapflights users on 7/3. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/169:12 amSEA - MCI
Nonstop3h 30mMultiple Airlines
Thu 9/182:55 pmMCI - SEA
1 stop11h 35mMultiple Airlines
Deal found 7/3$251
This Frontier deal was found by Cheapflights users on 7/3. 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 8/184:54 pmSEA - STL
2 stops14h 17mFrontier
Mon 8/257:54 pmSTL - SEA
1 stop6h 40mFrontier
Deal found 7/3$255
This CheapOair deal was found by Cheapflights users on 6/30. 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 7/295:30 pmSEA - MCI
1 stop18h 07mSpirit Airlines
Tue 8/52:32 pmMCI - SEA
1 stop27h 53mSpirit Airlines
Deal found 6/30$256

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 July 3, 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

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

Wed 10/29

5:05 am-12:45 pm

1 stop5h 40m

Kansas City

Fri 10/31

1:47 pm-8:51 pm

2 stops9h 04m

$222

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

Wed 10/29

5:30 pm-11:01 pm

Nonstop3h 31m

Kansas City

Fri 10/31

6:40 am-8:50 am

Nonstop4h 10m

$227

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

Mon 8/18

6:25 am-7:04 pm

1 stop10h 39m

Kansas City

Fri 8/22

6:02 pm-12:34 am

1 stop8h 32m

$235

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Thu 8/21

6:03 pm-11:59 pm

Nonstop3h 56m

Lambert-St Louis

Sun 8/24

7:54 pm-12:34 am

1 stop6h 40m

$242

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Sun 8/31

5:30 am-1:29 pm

1 stop5h 59m

Lambert-St Louis

Sun 9/7

7:35 am-2:43 pm

1 stop9h 08m

$243

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Fri 8/22

11:34 am-5:34 pm

Nonstop4h 00m

Lambert-St Louis

Sun 8/31

6:00 am-8:30 am

Nonstop4h 30m

$245

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Wed 8/6

11:58 pm-9:28 am

1 stop7h 30m

Lambert-St Louis

Sat 8/9

4:45 pm-9:23 pm

1 stop6h 38m

$247

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Wed 10/1

11:10 am-10:15 pm

2 stops9h 05m

Lambert-St Louis

Fri 10/31

2:45 pm-9:30 pm

1 stop8h 45m

$248

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Wed 9/3

11:31 am-5:34 pm

Nonstop4h 03m

Lambert-St Louis

Sat 9/13

3:35 pm-5:54 pm

Nonstop4h 19m

$249

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

Tue 9/16

9:12 am-2:42 pm

Nonstop3h 30m

Kansas City

Thu 9/18

2:55 pm-12:30 am

1 stop11h 35m

$251

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

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 July 3, 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.

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 July 3, 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
10,000 reviews

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,270 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,970 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,545 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,845 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 Frontier, which is currently one of the cheapest options available, starting at $63. Hawaiian Airlines flights start at $95 while deals on Alaska Airlines start at $99 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

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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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$118Average$238FlexibilityNo cancel feeOn-time62%
DeltaCheapest$140Average$404FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$168Average$314FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$186Average$534FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$188Average$451FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$200Average$500FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$216Average$491FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$237Average$407FlexibilityNo cancel feeOn-time85%

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