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

As of November 2026, there are 8 flights per day flying from Kansas City to Seattle. The most common time of day flights depart is 7:00, with 57% of flights taking off at midday.

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

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

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

58 flights are operational weekly from Kansas City to Seattle as of November 2026. The most popular departure day for this route is Fri, with 24% of flights per week taking off on this day.

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 115 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.

6:00 - 11:44MCI Kansas City-SEA Seattle/Tacoma Intl

7h 44m1 stop Chicago O'Hare Intl

5:05 - 12:30SEA Seattle/Tacoma Intl-MCI Kansas City

5h 25m1 stop Denver Intl

R6 214United Airlines

Thu, Dec 3 - Thu, Dec 10

15:50 - 23:35MCI Kansas City-SEA Seattle/Tacoma Intl

9h 45m1 stop Chicago Midway

6:10 - 16:55SEA Seattle/Tacoma Intl-MCI Kansas City

8h 45m2 stops Denver Intl Dallas Love Field

R6 297Southwest

Wed, Dec 2 - Wed, Dec 9

13:40 - 21:35MCI Kansas City-SEA Seattle/Tacoma Intl

9h 55m2 stops Denver Intl Phoenix Sky Harbor Intl

10:40 - 22:05SEA Seattle/Tacoma Intl-MCI Kansas City

9h 25m2 stops Sacramento Intl Dallas Love Field

R6 379Southwest

Wed, Jan 13 - Fri, Jan 15

11:50 - 18:40MCI Kansas City-SEA Seattle/Tacoma Intl

8h 50m2 stops Las Vegas Harry Reid Intl Sacramento Intl

20:40 - 7:50SEA Seattle/Tacoma Intl-MCI Kansas City

9h 10m1 stop Denver Intl

R6 395Southwest

Wed, Dec 16 - Tue, Dec 22

20:00 - 1:45MCI Kansas City-SEA Seattle/Tacoma Intl

7h 45m1 stop Las Vegas Harry Reid Intl

20:40 - 9:05SEA Seattle/Tacoma Intl-MCI Kansas City

10h 25m1 stop Denver Intl

R6 511Southwest

Wed, Dec 23 - Wed, Dec 30

11:40 - 20:05MCI Kansas City-SEA Seattle/Tacoma Intl

10h 25m2 stops Las Vegas Harry Reid Intl Long Beach Municipal

10:55 - 22:25SEA Seattle/Tacoma Intl-MCI Kansas City

9h 30m2 stops Oakland Las Vegas Harry Reid Intl

R6 593Southwest

Mon, Jan 4 - Mon, Jan 11

16:45 - 22:50MCI Kansas City-SEA Seattle/Tacoma Intl

8h 05m1 stop Denver Intl

14:35 - 1:05SEA Seattle/Tacoma Intl-MCI Kansas City

8h 30m1 stop Las Vegas Harry Reid Intl

R6 626Southwest

Mon, Dec 7 - Sun, Dec 13

20:00 - 1:45MCI Kansas City-SEA Seattle/Tacoma Intl

7h 45m1 stop Las Vegas Harry Reid Intl

0:15 - 9:05SEA Seattle/Tacoma Intl-MCI Kansas City

6h 50m1 stop Chicago Midway

R6 643Southwest

Wed, Dec 23 - Mon, Dec 28

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

4h 21mdirect

17:54 - 23:23SEA Seattle/Tacoma Intl-MCI Kansas City

3h 29mdirect

R6 709Delta

Thu, Dec 3 - Sun, Dec 6

20:00 - 1:45MCI Kansas City-SEA Seattle/Tacoma Intl

7h 45m1 stop Las Vegas Harry Reid Intl

13:45 - 1:55SEA Seattle/Tacoma Intl-MCI Kansas City

10h 10m2 stops Sacramento Intl Las Vegas Harry Reid Intl

R6 725Southwest

Wed, Dec 23 - Tue, Dec 29

Cheap last-minute flights

Enter your travel dates to find the best prices.

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

4h 11mdirect

17:54 - 23:27SEA Seattle/Tacoma Intl-MCI Kansas City

3h 33mdirect

R11 011Delta

Sat, Nov 14 - Sat, Nov 21

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

4h 11mdirect

17:54 - 23:27SEA Seattle/Tacoma Intl-MCI Kansas City

3h 33mdirect

R11 159Delta

Sun, Nov 15 - Fri, Nov 20

7:10 - 14:30MCI Kansas City-SEA Seattle/Tacoma Intl

9h 20m1 stop Atlanta Hartsfield-Jackson

17:54 - 23:27SEA Seattle/Tacoma Intl-MCI Kansas City

3h 33mdirect

R11 176Delta

Sat, Nov 14 - Sat, Nov 21

15:00 - 22:51MCI Kansas City-SEA Seattle/Tacoma Intl

9h 51m1 stop Houston George Bush Intcntl

15:49 - 23:52SEA Seattle/Tacoma Intl-MCI Kansas City

6h 03m1 stop Denver Intl

R11 258United Airlines

Sat, Nov 14 - Sat, Nov 21

5:40 - 16:50MCI Kansas City-SEA Seattle/Tacoma Intl

13h 10m2 stops Orlando Chicago Midway

11:40 - 0:45SEA Seattle/Tacoma Intl-MCI Kansas City

11h 05m2 stops Dallas Love Field Tampa

R11 505Southwest

Sat, Nov 14 - Sat, Nov 21

7:00 - 9:09MCI Kansas City-SEA Seattle/Tacoma Intl

4h 09mdirect

8:16 - 13:56SEA Seattle/Tacoma Intl-MCI Kansas City

3h 40mdirect

R11 522Alaska Airlines

Wed, Nov 11 - Sat, Nov 14

14:52 - 16:56MCI Kansas City-SEA Seattle/Tacoma Intl

4h 04mdirect

18:30 - 23:59SEA Seattle/Tacoma Intl-MCI Kansas City

3h 29mdirect

R11 571Alaska Airlines

Wed, Nov 11 - Wed, Nov 11

7:00 - 9:09MCI Kansas City-SEA Seattle/Tacoma Intl

4h 09mdirect

18:30 - 23:59SEA Seattle/Tacoma Intl-MCI Kansas City

3h 29mdirect

R11 687Alaska Airlines

Fri, Nov 13 - Mon, Nov 16

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

4h 11mdirect

17:54 - 23:27SEA Seattle/Tacoma Intl-MCI Kansas City

3h 33mdirect

R11 818Delta

Sat, Nov 14 - Mon, Nov 16

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

4h 11mdirect

23:40 - 11:05SEA Seattle/Tacoma Intl-MCI Kansas City

9h 25m1 stop Atlanta Hartsfield-Jackson

R11 851Delta

Fri, Nov 13 - Mon, Nov 16

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United Airlines flights from Kansas City to Seattle

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

United Airlines

Dec 3

MCI6:00Kansas City

7h 44m

1 stop

SEA11:44Seattle/Tacoma Intl

Dec 10

SEA5:05Seattle/Tacoma Intl

5h 25m

1 stop

MCI12:30Kansas City

R6 214

United Airlines

Dec 7

MCI17:19Kansas City

6h 02m

1 stop

SEA21:21Seattle/Tacoma Intl

Dec 13

SEA5:05Seattle/Tacoma Intl

9h 21m

2 stops

MCI16:26Kansas City

R6 939

United Airlines

Jan 27

MCI13:12Kansas City

8h 26m

1 stop

SEA19:38Seattle/Tacoma Intl

Jan 31

SEA12:30Seattle/Tacoma Intl

6h 05m

1 stop

MCI20:35Kansas City

R6 972

Southwest flights from Kansas City to Seattle

Our best Southwest deals on Kansas City to Seattle flight tickets

Southwest

Dec 2

MCI15:50Kansas City

9h 45m

1 stop

SEA23:35Seattle/Tacoma Intl

Dec 9

SEA6:10Seattle/Tacoma Intl

8h 45m

2 stops

MCI16:55Kansas City

R6 297

Southwest

Jan 13

MCI13:40Kansas City

9h 55m

2 stops

SEA21:35Seattle/Tacoma Intl

Jan 15

SEA10:40Seattle/Tacoma Intl

9h 25m

2 stops

MCI22:05Kansas City

R6 379

Southwest

Dec 16

MCI11:50Kansas City

8h 50m

2 stops

SEA18:40Seattle/Tacoma Intl

Dec 22

SEA20:40Seattle/Tacoma Intl

9h 10m

1 stop

MCI7:50Kansas City

R6 395

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Thu 3/12

6:00-11:44

1 stop7h 44m

Seattle/Tacoma Intl

Thu 10/12

5:05-12:30

1 stop5h 25m

R6 214

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Wed 2/12

15:50-23:35

1 stop9h 45m

Seattle/Tacoma Intl

Wed 9/12

6:10-16:55

2 stops8h 45m

R6 297

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Wed 13/1

13:40-21:35

2 stops9h 55m

Seattle/Tacoma Intl

Fri 15/1

10:40-22:05

2 stops9h 25m

R6 379

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Wed 16/12

11:50-18:40

2 stops8h 50m

Seattle/Tacoma Intl

Tue 22/12

20:40-7:50

1 stop9h 10m

R6 395

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Wed 23/12

20:00-1:45

1 stop7h 45m

Seattle/Tacoma Intl

Wed 30/12

20:40-9:05

1 stop10h 25m

R6 511

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Mon 4/1

11:40-20:05

2 stops10h 25m

Seattle/Tacoma Intl

Mon 11/1

10:55-22:25

2 stops9h 30m

R6 593

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Mon 7/12

16:45-22:50

1 stop8h 05m

Seattle/Tacoma Intl

Sun 13/12

14:35-1:05

1 stop8h 30m

R6 626

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Wed 23/12

20:00-1:45

1 stop7h 45m

Seattle/Tacoma Intl

Mon 28/12

0:15-9:05

1 stop6h 50m

R6 643

Fastest return journey

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Thu 3/12

7:00-9:21

Nonstop4h 21m

Seattle/Tacoma Intl

Sun 6/12

17:54-23:23

Nonstop3h 29m

R6 709

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Wed 23/12

20:00-1:45

1 stop7h 45m

Seattle/Tacoma Intl

Tue 29/12

13:45-1:55

2 stops10h 10m

R6 725

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 R6 214 to R8 110.
The lowest price recently found on this route was R6 214.

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 593, 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 857.

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 R6 350 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 753 on momondo.

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

As of November 2026, prices for Kansas City to Seattle flights are approximately 199% 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 115
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 115. The best return flight deal from Kansas City to Seattle found on momondo in the last 72 hours is R6 214.

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 46,82% of the total bookings. Other popular models include Boeing 737 MAX 8 with 19,43%, Boeing 737-900 Passenger/BBJ3 (winglets) with 10,51%, and Boeing 737-800 Passenger/BBJ2 (winglets) with 6,37%.

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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.