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$89+ Cheap flights from Seattle (SEA) 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.
SEA — STL
Mar 30 — Apr 61
Sun 3/30
Sun 4/6
1 adult, Economy
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Cheap flight deals from Seattle to Missouri

Keep the following information in mind while searching for Seattle to Missouri flight deals. Data was last updated March 25, 2025.

Round-trip from

$229
(Delta)

One-way from

$89
(Delta)

Good round-trip deal

$256 or less

Good one-way deal

$148 or less
From Seattle/Tacoma Intl to Missouri
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One-way flight from Seattle/Tacoma Intl to Missouri
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Price to beat on a round-trip flight from Seattle/Tacoma Intl to Missouri.
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Price to beat on a one-way flight from Seattle/Tacoma Intl to Missouri.
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Find flight deals from Seattle to Missouri

Cheapest flights from Seattle to Missouri
Explore the most affordable flight options available from Seattle to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 25, 2025.

This Delta deal was found by Cheapflights users on 3/24. 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 4/103:15 pmSEA - STL
1 stop5h 49mDelta
Mon 4/147:15 pmSTL - SEA
1 stop6h 47mDelta
Deal found 3/24$229
This Southwest deal was found by Cheapflights users on 3/23. 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 4/249:35 amSEA - STL
1 stop8h 00mSouthwest
Sun 4/278:10 pmSTL - SEA
1 stop7h 10mSouthwest
Deal found 3/23$233
This Hawaiian Airlines deal was found by Cheapflights users on 3/24. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/36:03 pmSEA - STL
Nonstop3h 56mHawaiian Airlines
Tue 5/66:30 amSTL - SEA
Nonstop4h 24mHawaiian Airlines
Deal found 3/24$237
This United Airlines deal was found by Cheapflights users on 3/24. 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.
Tue 4/811:45 pmSEA - STL
1 stop9h 18mUnited Airlines
Wed 4/94:20 pmSTL - SEA
1 stop8h 30mUnited Airlines
Deal found 3/24$242
This Alaska Airlines deal was found by Cheapflights users on 3/23. 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.
Mon 4/146:04 pmSEA - STL
Nonstop3h 55mAlaska Airlines
Wed 4/166:44 amSTL - SEA
Nonstop4h 30mAlaska Airlines
Deal found 3/23$243
This American Airlines deal was found by Cheapflights users on 3/24. 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 4/912:59 amSEA - STL
1 stop7h 34mAmerican Airlines
Tue 5/135:00 amSTL - SEA
1 stop7h 15mAmerican Airlines
Deal found 3/24$253
This Expedia deal was found by Cheapflights users on 3/24. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/268:00 amSEA - MCI
1 stop5h 19mMultiple Airlines
Mon 4/282:04 pmMCI - SEA
1 stop7h 47mMultiple Airlines
Deal found 3/24$255
This Alaska Airlines deal was found by Cheapflights users on 3/24. 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 4/158:56 amSEA - MCI
1 stop7h 52mAlaska Airlines
Tue 4/223:59 pmMCI - SEA
1 stop6h 36mAlaska Airlines
Deal found 3/24$256
This American Airlines deal was found by Cheapflights users on 3/24. 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.
Mon 4/2112:59 amSEA - MCI
1 stop6h 49mAmerican Airlines
Tue 4/294:11 pmMCI - SEA
1 stop8h 58mAmerican Airlines
Deal found 3/24$257
This Cheapflightsfares deal was found by Cheapflights users on 3/25. 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.
Sun 5/116:00 amSEA - MCI
1 stop11h 03mSpirit Airlines
Fri 5/167:58 pmMCI - SEA
1 stop6h 12mSpirit Airlines
Deal found 3/25$269
This Delta deal was found by Cheapflights users on 3/25. 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 4/185:30 pmSEA - MCI
Nonstop3h 31mDelta
Mon 4/216:40 amMCI - SEA
Nonstop4h 06mDelta
Deal found 3/25$277
This CheapOair deal was found by Cheapflights users on 3/25. 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 4/111:56 pmSEA - MCI
1 stop27h 41mFrontier
Sun 4/138:35 pmMCI - SEA
1 stop17h 21mFrontier
Deal found 3/25$291

Cheapflights Fare Finder

Customize your flight search to find flights from Seattle 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 25, 2025.
Use the filters below to find and compare flights from Seattle to Missouri that are best for you.

Fly from

Seattle

Fly to

Missouri

Route

Depart

Return

Price

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Thu 4/10

3:15 pm-11:04 pm

1 stop5h 49m

Lambert-St Louis

Mon 4/14

7:15 pm-12:02 am

1 stop6h 47m

$229

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Thu 4/24

9:35 am-7:35 pm

1 stop8h 00m

Lambert-St Louis

Sun 4/27

8:10 pm-1:20 am

1 stop7h 10m

$233

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Sat 5/3

6:03 pm-11:59 pm

Nonstop3h 56m

Lambert-St Louis

Tue 5/6

6:30 am-8:54 am

Nonstop4h 24m

$237

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Tue 4/8

11:45 pm-11:03 am

1 stop9h 18m

Lambert-St Louis

Wed 4/9

4:20 pm-10:50 pm

1 stop8h 30m

$242

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Mon 4/14

6:04 pm-11:59 pm

Nonstop3h 55m

Lambert-St Louis

Wed 4/16

6:44 am-9:14 am

Nonstop4h 30m

$243

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Wed 4/9

12:59 am-10:33 am

1 stop7h 34m

Lambert-St Louis

Tue 5/13

5:00 am-10:15 am

1 stop7h 15m

$253

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

Sat 4/26

8:00 am-3:19 pm

1 stop5h 19m

Kansas City

Mon 4/28

2:04 pm-7:51 pm

1 stop7h 47m

$255

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

Tue 4/15

8:56 am-6:48 pm

1 stop7h 52m

Kansas City

Tue 4/22

3:59 pm-8:35 pm

1 stop6h 36m

$256

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

Mon 4/21

12:59 am-9:48 am

1 stop6h 49m

Kansas City

Tue 4/29

4:11 pm-11:09 pm

1 stop8h 58m

$257

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

Sun 5/11

6:00 am-7:03 pm

1 stop11h 03m

Kansas City

Fri 5/16

7:58 pm-12:10 am

1 stop6h 12m

$269

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 49 results
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Best time to book a flight from Seattle to Missouri

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

What is the cheapest month to book a flight from Seattle to Missouri?

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

Find hourly flight availability from Seattle 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 25, 2025.

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

Weekly flight availability from Seattle to Missouri

Explore weekly flight availability from Seattle 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 25, 2025.

The most flights from SEA to USMO are scheduled on a Tuesday (11 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (1 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 25, 2025.
Read through reviews of airlines operating flights from Seattle 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
9,782 reviews

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Alaska Airlines
8.0
Very good
9,782 reviews
Alaska Airlines
8.0
Very good
9,782 reviews

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Southwest
8.0
Very good
4,272 reviews
Alaska Airlines
8.0
Very good
9,782 reviews

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Delta
8.0
Very good
7,890 reviews
Alaska Airlines
8.0
Very good
9,782 reviews

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Hawaiian Airlines
7.9
Good
2,330 reviews
Alaska Airlines
8.0
Very good
9,782 reviews

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
United Airlines
7.4
Good
8,605 reviews
Alaska Airlines
8.0
Very good
9,782 reviews

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Related info for your journey

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

  • What airport do you fly from for flights from Seattle to Missouri?

    Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly out of when you book flights from Seattle to Missouri.

  • How popular is this Seattle to Missouri flight route?

    This flight path from Seattle/Tacoma Intl 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 Seattle to Missouri one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $89. However, be on the lookout for offers from Spirit Airlines and Southwest, as they are both options that can get you from Seattle to Missouri for a low price.

  • What are the most popular routes from Seattle to Missouri?

    When deciding which route to take from Seattle to Missouri consider Seattle/Tacoma Intl - Lambert-St Louis, Seattle/Tacoma Intl - Kansas City or Seattle/Tacoma Intl - Springfield-Branson as they are the most popular.

  • What are the most reliable airlines from Seattle to Missouri?

    No one likes to see their flight delayed. When booking a flight from Seattle to Missouri consider choosing Alaska Airlines (95%), Hawaiian Airlines (95%) or Air Tahiti Nui (95%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Seattle to Missouri?

    Looking at all options, your cheapest flight can be booked for $118. While the most popular route (Seattle/Tacoma Intl - Lambert-St Louis) can be booked for $178 on average our data indicates $331 when flying from Seattle to Missouri.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle 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 Seattle to Missouri?

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

Discover the top 8 airlines that operate flights from Seattle 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 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$118Average$224FlexibilityNo cancel feeOn-time62%
DeltaCheapest$137Average$327FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$196Average$537FlexibilityNo cancel feeOn-time71%
Spirit AirlinesCheapest$198Average$401FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$200Average$488FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$216Average$469FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$217Average$372FlexibilityNo cancel feeOn-time85%
SouthwestCheapest$246Average$483FlexibilityNo cancel feeOn-time63%
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