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.

$79 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

Wed, Oct 28 - Tue, Nov 3

6:04 am - 1:07 pmSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

9h 03m1 stop Los Angeles

12:47 pm - 11:33 pmSEA Seattle/Tacoma Intl-STL Lambert-St Louis

8h 46m1 stop Dallas/Fort Worth

$217American Airlines

Sat, Oct 24 - Sat, Oct 31

7:28 am - 3:43 pmSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

10h 15m1 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

Tue, Oct 27 - Tue, Oct 27

7:45 am - 2:50 pmSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

9h 05m1 stop Salt Lake City

11:50 pm - 8:53 amSEA Seattle/Tacoma Intl-STL Lambert-St Louis

7h 03m1 stop Minneapolis St Paul

$217Delta

Sat, Oct 31 - Sat, Oct 31

6:47 am - 2:45 pmSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

9h 58m1 stop Detroit Metropolitan Wayne County

11:10 pm - 10:49 amSEA Seattle/Tacoma Intl-STL Lambert-St Louis

9h 39m1 stop Detroit Metropolitan Wayne County

$217Delta

Mon, Nov 2 - Mon, Nov 30

7:20 pm - 12:55 amSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

7h 35m1 stop Phoenix Sky Harbor Intl

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

6h 35m1 stop Chicago Midway

$222Southwest

Mon, Oct 19 - Mon, Oct 26

7:30 pm - 1:40 amSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

8h 10m1 stop Phoenix Sky Harbor Intl

12:10 am - 10:50 amSEA Seattle/Tacoma Intl-STL Lambert-St Louis

8h 40m1 stop Chicago Midway

$222Southwest

Tue, Feb 9 - Tue, Feb 16

8:30 am - 4:09 pmSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

9h 39m1 stop San Francisco

11:50 pm - 8:19 amSEA Seattle/Tacoma Intl-STL Lambert-St Louis

6h 29m1 stop Chicago O'Hare Intl

$227United Airlines

Mon, Nov 9 - Fri, Nov 13

7:05 pm - 12:59 amSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

7h 54m1 stop San Francisco

11:59 pm - 10:02 amSEA Seattle/Tacoma Intl-STL Lambert-St Louis

8h 03m1 stop Houston George Bush Intcntl

$227United Airlines

Mon, Oct 5 - Tue, Oct 6

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

$251Frontier

Wed, Oct 14 - Fri, Oct 30

4:19 pm - 3:12 pmSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

24h 53m1 stop Denver Intl

4:27 pm - 7:14 pmSEA Seattle/Tacoma Intl-STL Lambert-St Louis

24h 47m1 stop Denver Intl

$270Frontier

Recent last minute flight deals from Missouri to Seattle

Thu, Sep 24 - Tue, Oct 6

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

13h 12m1 stop Las Vegas Harry Reid Intl

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

25h 10m1 stop Denver Intl

$345Frontier

Wed, Sep 23 - Tue, Oct 6

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

$345Frontier

Wed, Sep 23 - Wed, Oct 21

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

23h 25m1 stop Las Vegas Harry Reid Intl

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

3h 56mnonstop

$347Multiple Airlines

Wed, Sep 23 - Wed, Oct 21

4:05 pm - 11:10 pmSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

9h 05m1 stop Denver Intl

3:30 pm - 11:15 pmSEA Seattle/Tacoma Intl-STL Lambert-St Louis

5h 45m1 stop Denver Intl

$379Southwest

Wed, Sep 23 - Tue, Oct 20

11:55 am - 8:20 pmSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

10h 25m2 stops Phoenix Sky Harbor Intl Oakland

12:10 am - 9:15 amSEA Seattle/Tacoma Intl-STL Lambert-St Louis

7h 05m1 stop Chicago Midway

$384Southwest

Thu, Sep 24 - Sat, Oct 10

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

13h 12m1 stop Las Vegas Harry Reid Intl

8:42 am - 2:21 pmSEA Seattle/Tacoma Intl-MCI Kansas City

3h 39mnonstop

$420Multiple Airlines

Thu, Sep 24 - Sun, Oct 4

5:00 am - 12:50 pmSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

9h 50m1 stop Chicago O'Hare Intl

3:41 pm - 12:27 amSEA Seattle/Tacoma Intl-STL Lambert-St Louis

6h 46m1 stop Chicago O'Hare Intl

$451American Airlines

Thu, Sep 24 - Mon, Sep 28

3:34 pm - 9:52 pmSTL Lambert-St Louis-SEA Seattle/Tacoma Intl

8h 18m1 stop Dallas/Fort Worth

5:30 am - 2:44 pmSEA Seattle/Tacoma Intl-STL Lambert-St Louis

7h 14m1 stop Dallas/Fort Worth

$451American Airlines

Sat, Sep 26 - Sat, Oct 10

7:24 am - 9:15 amMCI Kansas City-SEA Seattle/Tacoma Intl

3h 51mnonstop

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

3h 36mnonstop

$492Delta

Wed, Sep 23 - Fri, Oct 9

7:24 am - 9:15 amMCI Kansas City-SEA Seattle/Tacoma Intl

3h 51mnonstop

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

3h 36mnonstop

$492Delta

Recent direct flight deals from Missouri to Seattle

Sat, Oct 10 - Wed, Oct 14

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

4h 28mnonstop

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

3h 56mnonstop

$281Alaska Airlines

Wed, Oct 28 - Wed, Nov 4

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

4h 33mnonstop

8:22 am - 2:25 pmSEA Seattle/Tacoma Intl-STL Lambert-St Louis

4h 03mnonstop

$281Alaska Airlines

Sat, Oct 17 - Tue, Oct 20

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

$281Alaska Airlines

Wed, Oct 14 - Wed, Oct 21

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

4h 33mnonstop

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

3h 56mnonstop

$281Alaska Airlines

Fri, Oct 23 - Sun, Nov 1

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

$327Delta

Fri, Oct 23 - Sun, Oct 25

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

$327Delta

Sat, Oct 10 - Wed, Oct 14

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

$329American 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

$329American Airlines

Sat, Dec 12 - Sat, Dec 12

7:00 am - 9:21 amMCI Kansas City-SEA Seattle/Tacoma Intl

4h 21mnonstop

5:54 pm - 11:23 pmSEA Seattle/Tacoma Intl-MCI Kansas City

3h 29mnonstop

$337Delta

Sat, Oct 10 - Wed, Oct 14

3:17 pm - 5:20 pmMCI Kansas City-SEA Seattle/Tacoma Intl

4h 03mnonstop

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

3h 32mnonstop

$367American Airlines

Useful Info

Low season	January
High season	July
Cheapest flight	$79

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

Most popular time to fly with an average 24% 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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$79 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