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$85 Find cheap flights from Missouri to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Seattle departing on 9/30. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Wed 7/3
Wed 7/10

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In the last 7 days travelers have searched 41,909,192 times on KAYAK, and here is why:

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Good to know

Low season

January

High season

July

Cheapest flight

$85
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 20% increase in price.
Flight from St. Louis to Seattle

FAQs for booking flights from Missouri to Seattle

  • How does KAYAK find such low prices on flights from Missouri to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Missouri to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Missouri to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Missouri is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Missouri to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Missouri with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Missouri to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Missouri up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Prefer to fly non-stop from Missouri to Seattle?

Find which airlines fly direct from Missouri to Seattle/Tacoma Intl, which days they fly and book direct flights.

Nonstop departures

Missouri to Seattle/Tacoma Intl

Monday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Tuesday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Wednesday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Thursday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Friday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 more

Saturday

ANA, Aer Lingus, Aeromexico, +63 more

ANA, Aer Lingus, +64 more

Sunday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

See more direct flights

Nonstop returns

Seattle/Tacoma Intl to Missouri

Monday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Tuesday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Wednesday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Thursday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Friday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 more

Saturday

ANA, Aer Lingus, Aeromexico, +63 more

ANA, Aer Lingus, +64 more

Sunday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

See more direct flights
See more direct flights

Book cheap flights from Missouri to Seattle

Recent round-trip flight deals

9/11Wed
1 stopSpirit Airlines
7h 43mMCI-SEA
9/18Wed
1 stopSpirit Airlines
24h 06mSEA-MCI
$143
8/20Tue
1 stop
17h 19mSTL-SEA
8/27Tue
1 stop
14h 29mSEA-STL
$147
8/24Sat
1 stopFrontier
14h 52mMCI-SEA
8/31Sat
1 stopFrontier
8h 32mSEA-MCI
$166
9/9Mon
1 stopFrontier
14h 52mMCI-SEA
9/14Sat
1 stopFrontier
8h 32mSEA-MCI
$169
8/16Fri
1 stopAmerican Airlines
8h 47mSTL-SEA
8/19Mon
1 stopAmerican Airlines
6h 43mSEA-STL
$211
9/11Wed
nonstopDelta
3h 59mMCI-SEA
9/18Wed
nonstopDelta
3h 24mSEA-MCI
$237
9/10Tue
1 stopAlaska Airlines
6h 50mMCI-SEA
9/18Wed
nonstopAlaska Airlines
3h 28mSEA-MCI
$246
7/25Thu
1 stopDelta
7h 27mSTL-SEA
8/2Fri
1 stopDelta
8h 24mSEA-STL
$251
9/10Tue
nonstopAlaska Airlines
3h 54mMCI-SEA
9/14Sat
nonstopAlaska Airlines
3h 28mSEA-MCI
$257
10/3Thu
1 stopAmerican Airlines
6h 55mSTL-SEA
10/10Thu
1 stopAmerican Airlines
7h 01mSEA-STL
$281

Search by stops

Search by airline

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Recent one-way flight deals

9/30Mon
1 stopSpirit Airlines
23h 43mSTL-SEA
$85
9/14Sat
1 stopFrontier
14h 52mMCI-SEA
$88
8/19Mon
1 stopFrontier
14h 52mMCI-SEA
$89
8/20Tue
1 stopAmerican Airlines
7h 07mSTL-SEA
$98
8/12Mon
1 stopDelta
7h 27mSTL-SEA
$113
6/25Tue
nonstopAlaska Airlines
3h 55mMCI-SEA
$119
6/25Tue
nonstopAlaska Airlines
4h 25mSTL-SEA
$119
6/17Mon
1 stopDelta
7h 59mSTL-SEA
$124
6/9Sun
1 stopSun Country Air
15h 57mSTL-SEA
$135
7/10Wed
nonstopAmerican Airlines
4h 28mSTL-SEA
$249

Search by stops

Search by airline

Search by price

Last minute flights from Missouri to Seattle

Last minute flight, train and bus deals

6/5Wed
multi-stopFrontier
16h 10mMCI-SEA
6/12Wed
multi-stopFrontier
8h 34mSEA-MCI
$237
6/7Fri
multi-stopFrontier
18h 50mSTL-SEA
6/14Fri
multi-stopFrontier
10h 39mSEA-STL
$261
6/8Sat
multi-stopFrontier
15h 08mSTL-SEA
6/11Tue
multi-stopFrontier
11h 17mSEA-STL
$264
6/7Fri
multi-stopAmerican Airlines
7h 52mSTL-SEA
6/8Sat
multi-stopAmerican Airlines
7h 16mSEA-STL
$276
6/5Wed
multi-stop
16h 10mMCI-SEA
7/9Tue
multi-stop
6h 31mSEA-MCI
$293
6/7Fri
multi-stopSun Country Air
16h 52mMCI-SEA
6/9Sun
multi-stopSun Country Air
15h 18mSEA-MCI
$319
6/6Thu
multi-stopAmerican Airlines
7h 41mSTL-SEA
6/10Mon
multi-stopAmerican Airlines
6h 34mSEA-STL
$353
6/6Thu
multi-stopUnited Airlines
9h 02mSTL-SEA
6/11Tue
multi-stopUnited Airlines
9h 10mSEA-STL
$362
6/6Thu
multi-stop
20h 49mMCI-SEA
6/9Sun
multi-stop
15h 18mSEA-MCI
$389
6/6Thu
multi-stopUnited Airlines
12h 37mSTL-SEA
6/11Tue
multi-stopUnited Airlines
9h 10mSEA-STL
$547

Search by stops

Search by airline

Search by price

Flights to Seattle

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Missouri

Cabin classes:

$936
$503
$1,146
$218