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.

$80 CHEAP FLIGHTS from Missouri to Seattle

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Flight Deals

Cheap Flights from Missouri to Seattle

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Missouri to Seattle

Mon, Nov 9 - Wed, Nov 11

1:28 pm - 10:59 amSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

23h 31m1 stop Las Vegas Harry Reid Intl

12:14 pm - 12:33 pmSEA Seattle/Tacoma Intl-STL Lambert-St Louis

22h 19m1 stop Las Vegas Harry Reid Intl

$196Frontier

Sat, Oct 3 - Tue, Oct 6

8:10 pm - 3:08 pmSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

20h 58m1 stop Denver Intl

4:27 pm - 11:59 pmSEA Seattle/Tacoma Intl-STL Lambert-St Louis

29h 32m1 stop Denver Intl

$207Frontier

Sat, Oct 17 - Wed, Oct 28

7:29 am - 2:17 pmSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

8h 48m1 stop Chicago O'Hare Intl

1:37 pm - 11:46 pmSEA Seattle/Tacoma Intl-STL Lambert-St Louis

8h 09m1 stop Los Angeles Los Angeles

$217American Airlines

Sat, Oct 10 - Sat, Oct 17

5:23 pm - 12:36 amSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

9h 13m1 stop Chicago O'Hare Intl

3:14 pm - 12:19 amSEA Seattle/Tacoma Intl-STL Lambert-St Louis

7h 05m1 stop Chicago O'Hare Intl

$217American Airlines

Fri, Dec 4 - Sat, Dec 5

4:40 pm - 11:30 pmSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

8h 50m1 stop Chicago Midway

11:45 am - 8:00 pmSEA Seattle/Tacoma Intl-STL Lambert-St Louis

6h 15m1 stop Dallas Love Field

$217Southwest

Sat, Nov 7 - Sun, Nov 15

5:50 am - 10:50 amSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

7h 00m1 stop Dallas Love Field

12:15 am - 8:50 amSEA Seattle/Tacoma Intl-STL Lambert-St Louis

6h 35m1 stop Chicago Midway

$217Southwest

Tue, Oct 20 - Wed, Oct 28

5:35 pm - 11:59 pmSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

8h 24m1 stop Minneapolis St Paul

5:30 am - 1:32 pmSEA Seattle/Tacoma Intl-STL Lambert-St Louis

6h 02m1 stop Salt Lake City

$217Delta

Sat, Oct 17 - Sat, Oct 24

6:21 am - 10:59 amSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

6h 38m1 stop Minneapolis St Paul

6:00 am - 3:37 pmSEA Seattle/Tacoma Intl-STL Lambert-St Louis

7h 37m1 stop Detroit Metropolitan Wayne County

$217Delta

Wed, Mar 3 - Mon, Mar 8

7:04 pm - 12:14 amSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

7h 10m1 stop Chicago O'Hare Intl

10:40 pm - 8:19 amSEA Seattle/Tacoma Intl-STL Lambert-St Louis

7h 39m1 stop Chicago O'Hare Intl

$227United Airlines

Tue, Dec 22 - Wed, Dec 30

6:09 pm - 11:16 pmSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

7h 07m1 stop Denver Intl

7:00 am - 5:08 pmSEA Seattle/Tacoma Intl-STL Lambert-St Louis

8h 08m1 stop Chicago O'Hare Intl

$247United Airlines

Recent last minute flight deals from Missouri to Seattle

Thu, Sep 17 - Mon, Sep 21

8:32 pm - 3:08 pmMCI Kansas City-SEA Seattle/Tacoma Intl

20h 36m1 stop Denver Intl

4:27 pm - 7:37 pmSEA Seattle/Tacoma Intl-MCI Kansas City

25h 10m1 stop Denver Intl

$350Frontier

Wed, Sep 16 - Fri, Sep 18

12:17 pm - 9:42 amSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

23h 25m1 stop Las Vegas Harry Reid Intl

4:27 pm - 7:17 pmSEA Seattle/Tacoma Intl-STL Lambert-St Louis

24h 50m1 stop Denver Intl

$371Frontier

Thu, Sep 17 - Sat, Sep 19

5:00 am - 10:09 amSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

7h 09m1 stop Chicago O'Hare Intl

1:40 pm - 12:27 amSEA Seattle/Tacoma Intl-STL Lambert-St Louis

8h 47m1 stop Chicago O'Hare Intl

$451American Airlines

Thu, Sep 17 - Sat, Sep 19

5:00 am - 10:09 amSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

7h 09m1 stop Chicago O'Hare Intl

1:40 pm - 12:27 amSEA Seattle/Tacoma Intl-STL Lambert-St Louis

8h 47m1 stop Chicago O'Hare Intl

$451American Airlines

Sun, Sep 20 - Wed, Sep 30

12:27 pm - 9:42 amSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

23h 15m1 stop Las Vegas Harry Reid Intl

12:35 pm - 6:38 pmSEA Seattle/Tacoma Intl-STL Lambert-St Louis

4h 03mnonstop

$511Multiple Airlines

Fri, Sep 18 - Mon, Sep 21

11:17 am - 8:43 pmCOU Columbia Regional-SEA Seattle/Tacoma Intl

11h 26m2 stops Chicago O'Hare Intl San Francisco

1:57 pm - 10:55 pmSEA Seattle/Tacoma Intl-COU Columbia Regional

6h 58m1 stop Chicago O'Hare Intl

$514United Airlines

Sun, Sep 20 - Sat, Sep 26

10:30 pm - 9:42 amMCI Kansas City-SEA Seattle/Tacoma Intl

13h 12m1 stop Las Vegas Harry Reid Intl

8:12 am - 1:57 pmSEA Seattle/Tacoma Intl-MCI Kansas City

3h 45mnonstop

$514Multiple Airlines

Fri, Sep 18 - Mon, Sep 21

9:00 am - 1:22 pmCOU Columbia Regional-SEA Seattle/Tacoma Intl

6h 22m1 stop Denver Intl

11:00 pm - 10:39 amSEA Seattle/Tacoma Intl-COU Columbia Regional

9h 39m1 stop Chicago O'Hare Intl

$527United Airlines

Sat, Sep 19 - Sat, Sep 26

2:20 pm - 4:40 pmSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

4h 20mnonstop

11:25 am - 10:25 pmSEA Seattle/Tacoma Intl-STL Lambert-St Louis

9h 00m1 stop Phoenix Sky Harbor Intl

$543Southwest

Sat, Sep 19 - Sat, Sep 26

11:50 am - 7:35 pmSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

9h 45m1 stop Phoenix Sky Harbor Intl

6:50 am - 3:35 pmSEA Seattle/Tacoma Intl-STL Lambert-St Louis

6h 45m2 stops Denver Intl Omaha Eppley Airfield

$546Southwest

Recent direct flight deals from Missouri to Seattle

Sat, Oct 17 - Tue, Oct 20

4:42 pm - 7:10 pmSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

4h 28mnonstop

9:40 am - 3:44 pmSEA Seattle/Tacoma Intl-STL Lambert-St Louis

4h 04mnonstop

$357Alaska Airlines

Tue, Oct 13 - Tue, Oct 20

7:02 am - 9:35 amSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

4h 33mnonstop

9:40 am - 3:44 pmSEA Seattle/Tacoma Intl-STL Lambert-St Louis

4h 04mnonstop

$357Alaska Airlines

Sat, Dec 12 - Sat, Dec 12

7:00 am - 9:31 amSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

4h 31mnonstop

6:06 pm - 11:59 pmSEA Seattle/Tacoma Intl-STL Lambert-St Louis

3h 53mnonstop

$357Alaska Airlines

Sat, Nov 14 - Tue, Nov 17

7:00 am - 9:11 amMCI Kansas City-SEA Seattle/Tacoma Intl

4h 11mnonstop

5:54 pm - 11:27 pmSEA Seattle/Tacoma Intl-MCI Kansas City

3h 33mnonstop

$377Delta

Sat, Oct 24 - Wed, Oct 28

7:00 am - 9:04 amMCI Kansas City-SEA Seattle/Tacoma Intl

4h 04mnonstop

5:55 pm - 11:31 pmSEA Seattle/Tacoma Intl-MCI Kansas City

3h 36mnonstop

$377Delta

Tue, Feb 23 - Tue, Mar 2

7:30 am - 9:42 amMCI Kansas City-SEA Seattle/Tacoma Intl

4h 12mnonstop

5:30 pm - 11:00 pmSEA Seattle/Tacoma Intl-MCI Kansas City

3h 30mnonstop

$397Delta

Wed, Feb 3 - Sat, Feb 6

3:54 pm - 6:26 pmSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

4h 32mnonstop

9:05 am - 2:56 pmSEA Seattle/Tacoma Intl-STL Lambert-St Louis

3h 51mnonstop

$437American Airlines

Sat, Oct 10 - Sat, Oct 17

6:02 am - 8:33 amSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

4h 31mnonstop

9:40 am - 3:44 pmSEA Seattle/Tacoma Intl-STL Lambert-St Louis

4h 04mnonstop

$437American Airlines

Sat, Oct 17 - Sat, Oct 24

6:02 am - 8:33 amSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

4h 31mnonstop

6:03 pm - 11:59 pmSEA Seattle/Tacoma Intl-STL Lambert-St Louis

3h 56mnonstop

$457Multiple Airlines

Sat, Sep 26 - Mon, Oct 5

1:34 pm - 3:29 pmMCI Kansas City-SEA Seattle/Tacoma Intl

3h 55mnonstop

6:27 pm - 11:59 pmSEA Seattle/Tacoma Intl-MCI Kansas City

3h 32mnonstop

$726Multiple Airlines

Useful Info

Low season	January
High season	July
Cheapest flight	$80

Best time to beat the crowds with an average 25% drop in price.

Most popular time to fly with an average 25% increase in price.

Flight from Kansas City 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.

Lynnwood

Centralia

Fife

Lakewood

Westport

Lacey

Mukilteo

Woodinville

Poulsbo

Edmonds

Aberdeen

DuPont

Shoreline

Monroe

Castle Rock

Edgewood

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$80 Find Cheap Flights from Missouri to Seattle - Compare and Save

Cheap Flights from Missouri to Seattle

Recent round-trip flight deals from Missouri to Seattle

Recent one-way flight deals from Missouri to Seattle

Recent last minute flight deals from Missouri to Seattle

Recent direct flight deals from Missouri to Seattle

Good to know

Low season

High season

Cheapest flight

FAQs for booking flights from Missouri to Seattle

Traveling to a place near Seattle?

More options for your flight to Seattle

Complete your trip to Seattle with a hotel stay or car rental

Information on the airport you'll fly into in Seattle

Cabin class types available on flights to Missouri

Find direct flights for Seattle

Flights from domestic origins to Seattle

Flights to other popular destinations

Find deals for your return flight