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$83+ Cheap flights from Missouri to Seattle (SEA)

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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SEA
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheap flight deals from Missouri to Seattle

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

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$191
(Cheapflightsfares)

One-way from

$83
(Cheapflightsfares)

Good round-trip deal

$326 or less

Good one-way deal

$189 or less
Provider with most accurate pricing for Kansas City Downtown-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Kansas City Downtown-Seattle/Tacoma Intl flights.
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From Missouri to Seattle/Tacoma Intl
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One-way flight from Missouri to Seattle/Tacoma Intl
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Price to beat on a round-trip flight from Missouri to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from Missouri to Seattle/Tacoma Intl.
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Find flight deals from Missouri to Seattle

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

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.
Tue 5/136:45 pmMCI - SEA
1 stop7h 25mSpirit Airlines
Tue 5/206:00 amSEA - MCI
1 stop9h 45mSpirit Airlines
Deal found 3/27$191
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/143:25 pmSTL - SEA
1 stop10h 45mSouthwest
Thu 6/1910:40 pmSEA - STL
1 stop9h 35mSouthwest
Deal found 3/25$194
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.
Sat 4/269:41 amSTL - SEA
1 stop7h 56mAmerican Airlines
Fri 5/212:59 amSEA - STL
1 stop7h 26mAmerican Airlines
Deal found 3/27$203
This Orbitz 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/136:45 pmMCI - SEA
1 stop7h 25mMultiple Airlines
Tue 5/206:05 pmSEA - MCI
Nonstop3h 33mMultiple Airlines
Deal found 3/27$215
This United Airlines deal was found by Cheapflights users on 3/26. 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 4/305:23 pmMCI - SEA
1 stop7h 37mUnited Airlines
Mon 5/53:25 pmSEA - MCI
1 stop6h 19mUnited Airlines
Deal found 3/26$217
This United Airlines deal was found by Cheapflights users on 3/26. 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.
Thu 4/245:54 pmSTL - SEA
1 stop9h 04mUnited Airlines
Mon 4/2811:59 pmSEA - STL
1 stop7h 57mUnited Airlines
Deal found 3/26$217
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.
Mon 4/217:15 pmSTL - SEA
1 stop6h 47mDelta
Wed 4/233:15 pmSEA - STL
1 stop6h 19mDelta
Deal found 3/25$224
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.
Wed 4/306:40 amMCI - SEA
Nonstop4h 06mDelta
Tue 5/135:30 pmSEA - MCI
Nonstop3h 38mDelta
Deal found 3/27$237
This Hawaiian 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/236:30 amSTL - SEA
Nonstop4h 24mHawaiian Airlines
Tue 4/296:03 pmSEA - STL
Nonstop3h 56mHawaiian Airlines
Deal found 3/27$237
This Alaska Airlines deal was found by Cheapflights users on 3/26. 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 5/66:30 amSTL - SEA
Nonstop4h 24mAlaska Airlines
Fri 5/166:04 pmSEA - STL
Nonstop4h 00mAlaska Airlines
Deal found 3/26$243
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/29:59 pmSGF - SEA
1 stop15h 36mMultiple Airlines
Mon 5/126:00 amSEA - SGF
1 stop13h 09mMultiple Airlines
Deal found 3/27$251
This Hawaiian 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/307:00 amMCI - SEA
Nonstop3h 58mHawaiian Airlines
Sun 5/46:26 pmSEA - MCI
Nonstop3h 33mHawaiian Airlines
Deal found 3/27$257

Cheapflights Fare Finder

Customize your flight search to find flights from Missouri to Seattle 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 Missouri to Seattle that are best for you.

Fly from

Missouri

Fly to

Seattle

Route

Depart

Return

Price

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

Tue 5/13

6:45 pm-12:10 am

1 stop7h 25m

Seattle/Tacoma Intl

Tue 5/20

6:00 am-5:45 pm

1 stop9h 45m

$191

St. LouisSeattle

STL - SEA

STLSEA

Lambert-St Louis

Sat 4/26

9:41 am-3:37 pm

1 stop7h 56m

Seattle/Tacoma Intl

Fri 5/2

12:59 am-10:25 am

1 stop7h 26m

$203

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

Tue 5/13

6:45 pm-12:10 am

1 stop7h 25m

Seattle/Tacoma Intl

Tue 5/20

6:05 pm-11:38 pm

Nonstop3h 33m

$215

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

Wed 4/30

5:23 pm-11:00 pm

1 stop7h 37m

Seattle/Tacoma Intl

Mon 5/5

3:25 pm-11:44 pm

1 stop6h 19m

$217

St. LouisSeattle

STL - SEA

STLSEA

Lambert-St Louis

Fri 5/2

5:29 pm-10:42 pm

1 stop7h 13m

Seattle/Tacoma Intl

Mon 5/5

10:55 pm-9:56 am

1 stop9h 01m

$217

St. LouisSeattle

STL - SEA

STLSEA

Lambert-St Louis

Mon 4/21

7:15 pm-12:02 am

1 stop6h 47m

Seattle/Tacoma Intl

Wed 4/23

3:15 pm-11:34 pm

1 stop6h 19m

$224

St. LouisSeattle

STL - SEA

STLSEA

Lambert-St Louis

Wed 4/23

6:30 am-8:54 am

Nonstop4h 24m

Seattle/Tacoma Intl

Tue 4/29

6:03 pm-11:59 pm

Nonstop3h 56m

$237

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

Wed 4/30

6:40 am-8:46 am

Nonstop4h 06m

Seattle/Tacoma Intl

Tue 5/13

5:30 pm-11:08 pm

Nonstop3h 38m

$237

St. LouisSeattle

STL - SEA

STLSEA

Lambert-St Louis

Sun 5/4

9:55 pm-6:00 pm

1 stop22h 05m

Seattle/Tacoma Intl

Sun 5/11

6:00 am-9:09 am

1 stop25h 09m

$240

St. LouisSeattle

STL - SEA

STLSEA

Lambert-St Louis

Tue 5/6

6:30 am-8:54 am

Nonstop4h 24m

Seattle/Tacoma Intl

Fri 5/16

6:04 pm-12:04 am

Nonstop4h 00m

$243

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 45 results
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Best time to book a flight from Missouri to Seattle

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

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

Currently, January is the cheapest month in which you can book a flight from Missouri to Seattle (average of $238). Flying from Missouri to Seattle in July is currently the most expensive (average of $411). 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 MO to SEA?

Find hourly flight availability from Missouri to Seattle. 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.

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

Weekly flight availability from Missouri to Seattle

Explore weekly flight availability from Missouri to Seattle. 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 USMO to SEA are scheduled on a Wednesday (13 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

Rainfall in Seattle by month

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

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

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

If weather is an important factor for your trip to Seattle, 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 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated March 28, 2025.
Peruse reviews from past customers who have flown with Southwest, Alaska Airlines and Delta from Missouri to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,274 reviews

Overall

8.1

Comfort

8.1

Entertainment

7.6

Food

7.1

Crew

8.7

Boarding

8.2

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

Overall

8.1

Comfort

8.1

Entertainment

7.6

Food

7.1

Crew

8.7

Boarding

8.2

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

Overall

8.1

Comfort

8.1

Entertainment

7.6

Food

7.1

Crew

8.7

Boarding

8.2

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

Overall

8.1

Comfort

8.1

Entertainment

7.6

Food

7.1

Crew

8.7

Boarding

8.2

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.
Hawaiian Airlines
7.9
Good
2,336 reviews
Southwest
8.1
Very good
4,274 reviews

Overall

8.1

Comfort

8.1

Entertainment

7.6

Food

7.1

Crew

8.7

Boarding

8.2

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

Overall

8.1

Comfort

8.1

Entertainment

7.6

Food

7.1

Crew

8.7

Boarding

8.2

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 Missouri to Seattle. 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 into for flights to Seattle from Missouri?

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

  • How popular is this Missouri to Seattle flight route?

    The Missouri to Seattle/Tacoma Intl flight path was viewed by 43 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 Missouri to Seattle one-way?

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $83. Southwest flights start at $100 while deals on United Airlines start at $109 one-way.

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

    While some choose either Kansas City - Seattle/Tacoma Intl or Springfield-Branson - Seattle/Tacoma Intl, Lambert-St Louis - Seattle/Tacoma Intl is the most popular route from Missouri to Seattle.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Missouri to Seattle on time: Qatar Airways (90%), Hawaiian Airlines (89%), American Airlines (86%).

  • What are the cheapest flights from Missouri to Seattle?

    While on average a flight from Missouri to Seattle is generally $1,315, our data shows the cheapest flight currently is $144. When looking at the most popular route, (Lambert-St Louis - Seattle/Tacoma Intl), you can expect to pay $177 for that flight.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Missouri to Seattle (average of $238). Flying from Missouri to Seattle in July is currently the most expensive (average of $411). 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

Traveling to a place near Missouri?

Book flights to Missouri if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Renton
Lacey
Ocean Shores
Leavenworth
Federal Way
Olympia
Cle Elum
Centralia
Mukilteo
Aberdeen
Shoreline
Lynnwood
Shelton
Silverdale
Redmond
Monroe

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Missouri to Seattle

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

Discover the top 8 airlines that operate flights from Missouri to Seattle. 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$116Average$185FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$118Average$386FlexibilityNo cancel feeOn-time85%
Spirit AirlinesCheapest$133Average$239FlexibilityNo cancel feeOn-time65%
DeltaCheapest$137Average$292FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$201Average$480FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$208Average$523FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$216Average$524FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$266Average$452FlexibilityNo cancel feeOn-time63%
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