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Cheap flights from Kansas City to Seattle from £95

MCI — SEA
12 Oct — 19 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Kansas City to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Kansas City to Seattle

Wed 7/1019:00 -
1 stop6h 55m
Sat 10/1000:10 -
1 stop7h 00m
Deal found 7/9£235
Fri 27/1120:40 -
1 stop6h 35m
Thu 3/1208:05 -
2 stops9h 30m
Deal found 7/9£238
Wed 7/1006:30 -
2 stops9h 05m
Mon 12/1020:40 -
1 stop12h 55m
Deal found 7/9£239
Thu 12/1107:36 -
1 stop9h 56m
Tue 17/1112:20 -
2 stops9h 32m
Deal found 7/9£260
Mon 28/907:24 -
Nonstop3h 51m
Sat 3/1017:40 -
Nonstop3h 36m
Deal found 7/9£264
Fri 9/1015:35 -
2 stops11h 05m
Tue 13/1006:15 -
1 stop5h 05m
Deal found 7/9£268
Fri 2/1013:50 -
2 stops10h 40m
Thu 8/1020:40 -
1 stop12h 40m
Deal found 7/9£272
Sat 24/1007:00 -
Nonstop4h 04m
Wed 28/1017:55 -
Nonstop3h 36m
Deal found 9/9£279

Find flight deals from Kansas City to Seattle

Round-trip from

£235

One-way from

£95

Popular in

July

Cheapest in

February

Average price

£296
Southwest
  • Southwest
  • 7/10-10/10
  • 2 total stops
  • 13h 55m total
  • Kansas City to Seattle
Search Deals
Southwest
  • Southwest
  • 18/10-31/12
  • 1 total stop
  • 7h 00m total
  • Kansas City to Seattle
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£48 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Kansas City to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Sun 1/11

07:00-09:04

Nonstop4h 04m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£110

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Sat 7/11

07:00-09:09

Nonstop4h 09m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£110

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Wed 4/11

07:00-09:09

Nonstop4h 09m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£110

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Tue 6/10

07:00-09:04

Nonstop4h 04m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£110
Fastest return journey

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Wed 7/10

06:17-08:20

Nonstop4h 03m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£110

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Fri 6/11

06:34-14:45

1 stop10h 11m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£118

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Wed 3/3

17:20-22:55

1 stop7h 35m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£147

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Tue 13/10

13:20-21:45

2 stops10h 25m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£151

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Wed 7/10

06:55-13:35

2 stops8h 40m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£152

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Thu 1/10

06:00-15:50

2 stops11h 50m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£155

Flights are sorted by cheapest return flights first.

Deals found on 7/9

Showing 1-10 of 23 resultsSorted by cheapest first
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Best time to book a flight from Kansas City to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Kansas City with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Kansas City to Seattle

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

The best time to book flights from Kansas City to Seattle is 23 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Kansas City to Seattle?

Currently, February is the cheapest month in which you can book a flight from Kansas City to Seattle (average of £169). Flying from Kansas City to Seattle in July is currently the most expensive (average of £367). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MCI to SEA?

When flying from Kansas City to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Kansas City to Seattle?

Airfare is below average for this route at the moment.

Kansas City to Seattle flights typically cost between £269 and £357 in October.
The cheapest return price found within the last 5 days was £235 on Southwest (7 Oct–10 Oct).

Related info for your journey

  • How popular is this Kansas City to Seattle flight route?

    The Kansas City to Seattle/Tacoma Intl flight path was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Kansas City to Seattle?

    There are many flights that can get you from Kansas City to Seattle in 6h 55m. Fly via Southwest or Alaska Airlines to get the fastest option. The distance from Kansas City to Seattle is about 1485 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most reliable airlines from Kansas City to Seattle?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Kansas City to Seattle on time: Delta (97%), Korean Air (97%), Japan Airlines (95%).

  • Can I find deals for flights from Kansas City to Seattle that include hotel bookings?

    Yes. In addition to deals on Kansas City to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Kansas City to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kansas City to Seattle.

  • Can I find deals for business class flights from Kansas City to Seattle?

    Yes. Cheapflights offers flight deals from Kansas City to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Kansas City to Seattle?

    Currently, February is the cheapest month in which you can book a flight from Kansas City to Seattle (average of £169). Flying from Kansas City to Seattle in July is currently the most expensive (average of £367). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Federal Way
SeaTac

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Cheapflights makes it easy to find Kansas City to Seattle flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Kansas City to Seattle?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Seattle from Kansas City.

Can Cheapflights find flights from Kansas City to Seattle with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Kansas City to Seattle flexibly with Cheapflights today.

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