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$55+ 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 4/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — STL
Jan 25 — Feb 11
Sat 1/25
Sat 2/1
1 adult, Economy
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Cheap flight deals from Seattle to Missouri

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Missouri (USMO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 20, 2025.

Round-trip from

$217
(United Airlines)

One-way from

$62
(Trip.com)
From Seattle/Tacoma Intl to Missouri
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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 January 20, 2025.

This United Airlines deal was found by Cheapflights users on 1/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/111:59 pmSEA - MCI
1 stop8h 35mUnited Airlines
Wed 3/55:16 pmMCI - SEA
1 stop7h 29mUnited Airlines
Deal found 1/19$217
This Expedia deal was found by Cheapflights users on 1/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/16:00 amSEA - MCI
1 stop5h 24mMultiple Airlines
Tue 5/67:00 amMCI - SEA
Nonstop3h 58mMultiple Airlines
Deal found 1/19$219
This Cheapflightsfares deal was found by Cheapflights users on 1/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/185:15 amSEA - MCI
1 stop11h 12mSpirit Airlines
Tue 2/257:24 pmMCI - SEA
1 stop7h 01mSpirit Airlines
Deal found 1/19$220
This Delta deal was found by Cheapflights users on 1/20. 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 4/225:30 pmSEA - MCI
Nonstop3h 33mDelta
Wed 4/236:40 amMCI - SEA
Nonstop3h 58mDelta
Deal found 1/20$237
This CheapOair deal was found by Cheapflights users on 1/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/132:02 pmSEA - STL
1 stop17h 14mFrontier
Mon 3/176:38 pmSTL - SEA
1 stop16h 52mFrontier
Deal found 1/20$245
This Delta deal was found by Cheapflights users on 1/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/245:10 pmSEA - STL
1 stop5h 22mDelta
Fri 3/287:30 pmSTL - SEA
1 stop6h 39mDelta
Deal found 1/19$247
This Kissandfly.com deal was found by Cheapflights users on 1/19. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/56:11 pmSEA - STL
Nonstop3h 48mAlaska Airlines
Wed 3/125:00 pmSTL - SEA
1 stop9h 09mAlaska Airlines
Deal found 1/19$253
This American Airlines deal was found by Cheapflights users on 1/19. 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.
Tue 3/412:43 amSEA - MCI
1 stop7h 03mAmerican Airlines
Wed 3/121:06 pmMCI - SEA
1 stop10h 04mAmerican Airlines
Deal found 1/19$256
This United Airlines deal was found by Cheapflights users on 1/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/87:00 amSEA - STL
1 stop8h 50mUnited Airlines
Wed 3/123:30 pmSTL - SEA
2 stops9h 31mUnited Airlines
Deal found 1/19$256
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/236:26 pmSEA - MCI
Nonstop3h 33mAlaska Airlines
Fri 4/257:00 amMCI - SEA
Nonstop3h 58mAlaska Airlines
Deal found 1/20$258
This American Airlines deal was found by Cheapflights users on 1/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/612:45 amSEA - STL
1 stop8h 03mAmerican Airlines
Sun 2/165:10 amSTL - SEA
1 stop7h 54mAmerican Airlines
Deal found 1/20$258
This Booking.com deal was found by Cheapflights users on 1/19. 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.
Fri 3/72:02 pmSEA - MCI
1 stop27h 33mFrontier
Sun 3/98:35 pmMCI - SEA
1 stop17h 27mFrontier
Deal found 1/19$262

Find flights from Seattle to Missouri within your budget

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 January 20, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

Sat 3/1

11:59 pm-10:34 am

1 stop8h 35m

Kansas City

Wed 3/5

5:16 pm-10:45 pm

1 stop7h 29m

$217

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

Thu 5/1

6:00 am-1:24 pm

1 stop5h 24m

Kansas City

Tue 5/6

7:00 am-8:58 am

Nonstop3h 58m

$219

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

Tue 2/18

5:15 am-6:27 pm

1 stop11h 12m

Kansas City

Tue 2/25

7:24 pm-12:25 am

1 stop7h 01m

$220

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

Wed 3/5

6:40 pm-12:09 am

Nonstop3h 29m

Kansas City

Wed 3/12

6:35 am-8:43 am

Nonstop4h 08m

$237

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Thu 3/13

2:02 pm-9:16 am

1 stop17h 14m

Lambert-St Louis

Mon 3/17

6:38 pm-9:30 am

1 stop16h 52m

$245

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Mon 3/24

5:10 pm-12:32 am

1 stop5h 22m

Lambert-St Louis

Fri 3/28

7:30 pm-12:09 am

1 stop6h 39m

$247

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Wed 3/5

6:11 pm-11:59 pm

Nonstop3h 48m

Lambert-St Louis

Wed 3/12

5:00 pm-12:09 am

1 stop9h 09m

$253

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

Tue 3/4

12:43 am-9:46 am

1 stop7h 03m

Kansas City

Wed 3/12

1:06 pm-9:10 pm

1 stop10h 04m

$256

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Sat 3/8

7:00 am-5:50 pm

1 stop8h 50m

Lambert-St Louis

Wed 3/12

3:30 pm-11:01 pm

2 stops9h 31m

$256

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Thu 2/6

12:45 am-10:48 am

1 stop8h 03m

Lambert-St Louis

Sun 2/16

5:10 am-11:04 am

1 stop7h 54m

$258

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

Showing 1-10 of 45 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.

Travel insights for flights from Seattle to Missouri

Get recent, data-driven insights about flights from Seattle to Missouri including ideal travel times, pricing trends, and more.

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 January 20, 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.

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 January 20, 2025.
Read through reviews of airlines operating flights from Seattle to Missouri, such as Alaska Airlines, Delta and United Airlines. 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.
Southwest
8.1
Very good
4,659 reviews

Overall

8.1

Food

7.2

Comfort

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,659 reviews
Southwest
8.1
Very good
4,659 reviews

Overall

8.1

Food

7.2

Comfort

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,696 reviews
Southwest
8.1
Very good
4,659 reviews

Overall

8.1

Food

7.2

Comfort

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,659 reviews

Overall

8.1

Food

7.2

Comfort

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,982 reviews
Southwest
8.1
Very good
4,659 reviews

Overall

8.1

Food

7.2

Comfort

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,659 reviews

Overall

8.1

Food

7.2

Comfort

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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 Frontier, with whom users have recently found tickets for as low as $62. However, be on the lookout for offers from Spirit Airlines and Delta, 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 - Kansas City, Seattle/Tacoma Intl - Lambert-St Louis 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 Hawaiian Airlines (86%), American Airlines (86%) or Singapore Airlines (86%) 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 $128. While the most popular route (Seattle/Tacoma Intl - Kansas City) can be booked for $181 on average our data indicates $395 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 7 airlines flying from Seattle to Missouri

Discover the top 7 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 January 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$118Average$210FlexibilityNo cancel feeOn-time62%
DeltaCheapest$123Average$308FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$176Average$532FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$194Average$477FlexibilityNo cancel feeOn-time75%
Spirit AirlinesCheapest$198Average$401FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$216Average$496FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$236Average$488FlexibilityNo cancel feeOn-time63%
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