How many flights depart from Kansas City to Seattle on average per week?

48 flights are operational weekly from Kansas City to Seattle as of September 2026. The most popular departure day for this route is Tue, with 21% of flights per week taking off on this day.

How many flights depart from Kansas City to Seattle on average per day?

As of September 2026, there are 6 flights per day flying from Kansas City to Seattle. The most common time of day flights depart is 7:00, with 67% of flights taking off at midday.

What is the cheapest airline that flies from Kansas City to Seattle/Tacoma Intl?

Southwest and United Airlines are the most popular carriers operating from Kansas City to Seattle/Tacoma Intl

When did momondo last update prices for flights from Kansas City Airport to Seattle/Tacoma Intl Airport?

Prices for flights from Kansas City Airport to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

How old do you have to be to fly from Kansas City Airport to Seattle/Tacoma Intl Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Kansas City Airport to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

R3 373 Cheap Flights from Kansas City to Seattle in 2026/27

Find the cheapest flights from Kansas City to Seattle

Return

One-way

Last minute

Direct

Cheap return flights

Enter your travel dates to find the best prices.

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

4h 04mdirect

17:55 - 23:31SEA Seattle/Tacoma Intl-MCI Kansas City

3h 36mdirect

R6 468Delta

Sat, Oct 24 - Sat, Oct 31

8:05 - 14:19MCI Kansas City-SEA Seattle/Tacoma Intl

8h 14m1 stop Atlanta Hartsfield-Jackson

17:55 - 23:31SEA Seattle/Tacoma Intl-MCI Kansas City

3h 36mdirect

R6 631Delta

Sat, Oct 24 - Sat, Oct 31

17:06 - 22:56MCI Kansas City-SEA Seattle/Tacoma Intl

7h 50m1 stop Chicago O'Hare Intl

7:11 - 16:24SEA Seattle/Tacoma Intl-MCI Kansas City

7h 13m1 stop San Francisco

R6 648United Airlines

Tue, Oct 20 - Wed, Oct 21

7:00 - 12:20MCI Kansas City-SEA Seattle/Tacoma Intl

7h 20m1 stop San Francisco

9:05 - 17:50SEA Seattle/Tacoma Intl-MCI Kansas City

6h 45m1 stop San Francisco

R6 729United Airlines

Sat, Nov 7 - Sat, Nov 14

14:55 - 22:20MCI Kansas City-SEA Seattle/Tacoma Intl

9h 25m2 stops Dallas Love Field Las Vegas Harry Reid Intl

5:30 - 13:30SEA Seattle/Tacoma Intl-MCI Kansas City

6h 00m1 stop Chicago Midway

R6 745Southwest

Thu, Nov 19 - Mon, Nov 23

6:30 - 10:55MCI Kansas City-SEA Seattle/Tacoma Intl

6h 25m1 stop Minneapolis St Paul

13:30 - 21:06SEA Seattle/Tacoma Intl-MCI Kansas City

5h 36m1 stop Salt Lake City

R6 794Delta

Wed, Jan 13 - Sat, Jan 16

5:25 - 11:55MCI Kansas City-SEA Seattle/Tacoma Intl

8h 30m1 stop Las Vegas Harry Reid Intl

5:55 - 16:45SEA Seattle/Tacoma Intl-MCI Kansas City

8h 50m2 stops Sacramento Intl Denver Intl

R6 811Southwest

Sat, Oct 24 - Sat, Oct 31

15:30 - 21:45MCI Kansas City-SEA Seattle/Tacoma Intl

8h 15m2 stops Dallas Love Field Denver Intl

5:55 - 16:00SEA Seattle/Tacoma Intl-MCI Kansas City

8h 05m2 stops Sacramento Intl Phoenix Sky Harbor Intl

R6 892Southwest

Sat, Oct 24 - Sat, Oct 31

10:25 - 21:30MCI Kansas City-SEA Seattle/Tacoma Intl

13h 05m2 stops San Diego Oakland

0:15 - 11:05SEA Seattle/Tacoma Intl-MCI Kansas City

8h 50m1 stop Chicago Midway

R6 908Southwest

Thu, Dec 24 - Tue, Dec 29

17:13 - 23:16MCI Kansas City-SEA Seattle/Tacoma Intl

8h 03m1 stop Denver Intl

14:41 - 23:44SEA Seattle/Tacoma Intl-MCI Kansas City

7h 03m1 stop Denver Intl

R6 973United Airlines

Wed, Dec 23 - Wed, Dec 30

Cheap last-minute flights

Enter your travel dates to find the best prices.

17:24 - 14:56MCI Kansas City-SEA Seattle/Tacoma Intl

23h 32m2 stops Dallas/Fort Worth Sacramento Intl

18:27 - 23:59SEA Seattle/Tacoma Intl-MCI Kansas City

3h 32mdirect

R10 428American Airlines

Mon, Sep 28 - Tue, Sep 29

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

3h 51mdirect

17:40 - 23:16SEA Seattle/Tacoma Intl-MCI Kansas City

3h 36mdirect

R10 542Delta

Mon, Sep 28 - Mon, Oct 5

7:26 - 12:27MCI Kansas City-SEA Seattle/Tacoma Intl

7h 01m1 stop Los Angeles

17:40 - 23:16SEA Seattle/Tacoma Intl-MCI Kansas City

3h 36mdirect

R10 705Delta

Mon, Sep 28 - Sat, Oct 3

7:50 - 12:30MCI Kansas City-SEA Seattle/Tacoma Intl

6h 40m1 stop Chicago Midway

6:30 - 16:55SEA Seattle/Tacoma Intl-MCI Kansas City

8h 25m2 stops Las Vegas Harry Reid Intl Phoenix Sky Harbor Intl

R10 949Southwest

Sat, Sep 26 - Sat, Oct 3

17:35 - 1:15MCI Kansas City-SEA Seattle/Tacoma Intl

9h 40m1 stop San Francisco

5:00 - 17:43SEA Seattle/Tacoma Intl-MCI Kansas City

10h 43m2 stops Denver Intl Chicago O'Hare Intl

R11 177United Airlines

Mon, Sep 28 - Tue, Sep 29

17:24 - 1:15MCI Kansas City-SEA Seattle/Tacoma Intl

9h 51m2 stops Denver Intl San Francisco

5:00 - 17:43SEA Seattle/Tacoma Intl-MCI Kansas City

10h 43m2 stops Denver Intl Chicago O'Hare Intl

R11 259United Airlines

Mon, Sep 28 - Tue, Sep 29

19:11 - 22:59MCI Kansas City-SEA Seattle/Tacoma Intl

5h 48m1 stop Denver Intl

9:05 - 20:44SEA Seattle/Tacoma Intl-MCI Kansas City

9h 39m2 stops San Francisco Denver Intl

R11 438United Airlines

Mon, Sep 28 - Sat, Oct 3

13:34 - 15:29MCI Kansas City-SEA Seattle/Tacoma Intl

3h 55mdirect

8:42 - 14:21SEA Seattle/Tacoma Intl-MCI Kansas City

3h 39mdirect

R11 519Alaska Airlines

Mon, Sep 28 - Sat, Oct 3

7:26 - 12:27MCI Kansas City-SEA Seattle/Tacoma Intl

7h 01m1 stop Los Angeles

17:40 - 23:16SEA Seattle/Tacoma Intl-MCI Kansas City

3h 36mdirect

R11 682Delta

Mon, Sep 28 - Sat, Oct 3

19:11 - 22:59MCI Kansas City-SEA Seattle/Tacoma Intl

5h 48m1 stop Denver Intl

23:59 - 10:06SEA Seattle/Tacoma Intl-MCI Kansas City

8h 07m1 stop Houston George Bush Intcntl

R11 845United Airlines

Mon, Sep 28 - Wed, Sep 30

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Southwest flights from Kansas City to Seattle

Our best Southwest deals on Kansas City to Seattle flight tickets

Southwest

Nov 19

MCI14:55Kansas City

9h 25m

2 stops

SEA22:20Seattle/Tacoma Intl

Nov 23

SEA5:30Seattle/Tacoma Intl

6h 00m

1 stop

MCI13:30Kansas City

R6 745

Southwest

Oct 24

MCI5:25Kansas City

8h 30m

1 stop

SEA11:55Seattle/Tacoma Intl

Oct 31

SEA5:55Seattle/Tacoma Intl

8h 50m

2 stops

MCI16:45Kansas City

R6 811

Southwest

Oct 24

MCI15:30Kansas City

8h 15m

2 stops

SEA21:45Seattle/Tacoma Intl

Oct 31

SEA5:55Seattle/Tacoma Intl

8h 05m

2 stops

MCI16:00Kansas City

R6 892

Alaska Airlines flights from Kansas City to Seattle

Our best Alaska Airlines deals on Kansas City to Seattle flight tickets

Alaska Airlines

Oct 17

MCI18:14Kansas City

6h 11m

1 stop

SEA22:25Seattle/Tacoma Intl

Oct 20

SEA13:55Seattle/Tacoma Intl

25h 23m

2 stops

MCI17:18Kansas City

R7 006

Alaska Airlines

Oct 24

MCI6:17Kansas City

4h 03m

SEA8:20Seattle/Tacoma Intl

Oct 26

SEA18:27Seattle/Tacoma Intl

3h 32m

MCI23:59Kansas City

R7 593

Alaska Airlines

Dec 22

MCI6:00Kansas City

4h 20m

SEA8:20Seattle/Tacoma Intl

Dec 30

SEA18:33Seattle/Tacoma Intl

3h 26m

MCI23:59Kansas City

R7 935

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Sat 24/10

7:00-9:04

Nonstop4h 04m

Seattle/Tacoma Intl

Sat 31/10

17:55-23:31

Nonstop3h 36m

R6 468

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Sat 24/10

8:05-14:19

1 stop8h 14m

Seattle/Tacoma Intl

Sat 31/10

17:55-23:31

Nonstop3h 36m

R6 631

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Tue 20/10

17:06-22:56

1 stop7h 50m

Seattle/Tacoma Intl

Wed 21/10

7:11-16:24

1 stop7h 13m

R6 648

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Sat 7/11

7:00-12:20

1 stop7h 20m

Seattle/Tacoma Intl

Sat 14/11

9:05-17:50

1 stop6h 45m

R6 729

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Thu 19/11

14:55-22:20

2 stops9h 25m

Seattle/Tacoma Intl

Mon 23/11

5:30-13:30

1 stop6h 00m

R6 745

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Wed 13/1

6:30-10:55

1 stop6h 25m

Seattle/Tacoma Intl

Sat 16/1

13:30-21:06

1 stop5h 36m

R6 794

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Sat 24/10

5:25-11:55

1 stop8h 30m

Seattle/Tacoma Intl

Sat 31/10

5:55-16:45

2 stops8h 50m

R6 811

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Sat 24/10

15:30-21:45

2 stops8h 15m

Seattle/Tacoma Intl

Sat 31/10

5:55-16:00

2 stops8h 05m

R6 892

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Thu 24/12

10:25-21:30

2 stops13h 05m

Seattle/Tacoma Intl

Tue 29/12

0:15-11:05

1 stop8h 50m

R6 908

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Wed 23/12

17:13-23:16

1 stop8h 03m

Seattle/Tacoma Intl

Wed 30/12

14:41-23:44

1 stop7h 03m

R6 973

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Kansas City to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the typical price of a round-trip flight between Kansas City and Seattle?

Prices are currently typical for flights on this route.

Typical prices usually range from R5 890 to R8 831.
The lowest price recently found on this route was R6 468.

What is the cheapest month to fly to Seattle?

The cheapest month to fly to Seattle from Kansas City is in February. Flight prices, which tend to average around R3 715, are often lower during this time because this is during the off-season. If you aren’t able to travel to Seattle during the month of February, then flying in April is also cheap. Prices for this month can be found on momondo for an average of R3 878.

How far in advance should I book a flight from Kansas City to Seattle?

You are more likely to see cheaper flights to Seattle from Kansas City when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around R5 780 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Kansas City for as low as R5 328 on momondo.

How have Kansas City to Seattle flight prices changed over time?

As of September 2026, prices for Kansas City to Seattle flights are approximately 151% more expensive when compared to flights at the same time last year.

When to book flights from Kansas City to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Kansas City to Seattle according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Kansas City to Seattle (MCI to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Kansas City to Seattle

Best price found	R3 373
Direct flights	Every day
Airports in Seattle	1 airport

The best one-way flight to Seattle from Kansas City in the past 72 hours is R3 373. The best return flight deal from Kansas City to Seattle found on momondo in the last 72 hours is R6 468.

Direct flights go from Kansas City to Seattle every day.

There is 1 airport in Seattle. From Kansas City there are direct flights to Seattle/Tacoma Intl (SEA).

Search flight deals

Frequently asked questions about flying from Kansas City to Seattle

How far is Kansas City to Seattle/Tacoma Intl by plane?
There are 2419,8 km between Kansas City and Seattle/Tacoma Intl.
When did momondo last update prices for flights from Kansas City Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Kansas City Airport to Seattle/Tacoma Intl Airport are refreshed on a daily basis.
How old do you have to be to fly from Kansas City Airport to Seattle/Tacoma Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Kansas City Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Kansas City to Seattle?
Based on momondo bookings for flights between Kansas City and Seattle, the leading plane model is Boeing 737, making up 50,31% of the total bookings. Other popular models include Boeing 737 MAX 8 with 18,28%, Boeing 737-800 Passenger/BBJ2 (winglets) with 8,01%, and Boeing 737-900 Passenger/BBJ3 (winglets) with 7,19%.

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Why use momondo?

Why should I use momondo to find a flight deal from Kansas City to Seattle?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Kansas City to Seattle . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Kansas City to Seattle with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Seattle from Kansas City with this policy.

How can momondo help me find flights from Kansas City to Seattle?

momondo helps you find the best flight between Kansas City and Seattle by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Kansas City to Seattle right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from Kansas City and alert you when they change.