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Cheap flights from Kansas City to Seattle from £133

MCI — SEA
27 Nov — 4 Dec1
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

Sat 5/1218:00 -
1 stop5h 50m
Sat 12/1206:45 -
1 stop6h 45m
Deal found 23/10£252
Wed 2/1207:00 -
1 stop7h 20m
Mon 7/1206:15 -
1 stop7h 16m
Deal found 28/10£265
Thu 26/1111:00 -
2 stops9h 45m
Thu 3/1209:25 -
1 stop6h 20m
Deal found 27/10£269
Thu 26/1111:00 -
2 stops9h 45m
Wed 2/1211:35 -
2 stops8h 20m
Deal found 27/10£273
Fri 20/1105:45 -
1 stop6h 02m
Wed 2/1212:25 -
2 stops9h 19m
Deal found 27/10£284
Wed 2/1210:40 -
1 stop9h 55m
Sun 6/1206:15 -
1 stop5h 50m
Deal found 28/10£289
Sat 5/1218:00 -
1 stop5h 50m
Sat 19/1220:15 -
1 stop11h 30m
Deal found 24/10£291
Tue 8/1218:25 -
1 stop7h 10m
Wed 6/110:35 -
1 stop8h 45m
Deal found 27/10£293
Thu 10/1216:19 -
Nonstop4h 13m
Sun 13/1218:34 -
Nonstop3h 25m
Deal found 28/10£298
Thu 10/1210:25 -
2 stops13h 15m
Tue 15/1208:05 -
2 stops9h 35m
Deal found 28/10£301

Find flight deals from Kansas City to Seattle

Round-trip from

£252

One-way from

£133

Popular in

July

Cheapest in

February

Average price

£357
Southwest
  • Southwest
  • 5/12-12/12
  • 2 total stops
  • 12h 35m total
  • Kansas City to Seattle
Search Deals
Southwest
  • Southwest
  • 2/12-31/12
  • 1 total stop
  • 9h 45m total
  • Kansas City to Seattle
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£41 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 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.

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Route

Depart

Return

Price

Cheapest return flight

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Thu 10/12

15:50-23:35

1 stop9h 45m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£133

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Fri 20/11

16:00-21:50

1 stop7h 50m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£161

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Sat 19/12

19:20-23:05

1 stop5h 45m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£161

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Wed 2/12

14:25-22:20

1 stop9h 55m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£161

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Thu 19/11

10:25-21:40

2 stops13h 15m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£170

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Mon 7/12

16:12-21:58

1 stop7h 46m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£174

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Thu 10/12

19:59-09:00

1 stop15h 01m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£185

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Wed 18/11

11:31-18:33

2 stops9h 02m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£206

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Tue 12/1

06:00-21:17

3 stops17h 17m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£210

Kansas CitySeattle

MCI Kansas City - SEA Seattle/Tacoma Intl

MCISEA

Kansas City

Mon 16/11

07:00-09:09

Nonstop4h 09m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£213

Flights are sorted by cheapest return flights first.

Deals found on 25/10

Showing 1-10 of 22 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 £170). Flying from Kansas City to Seattle in July is currently the most expensive (average of £372). 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 typical for this route at the moment.

Kansas City to Seattle flights typically cost between £193 and £366 in December.
The cheapest return price found within the last 5 days was £252 on Southwest (5 Dec–12 Dec).

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 2 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 4h 21m. Fly via Delta, United Airlines, or Southwest 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: Japan Airlines (97%), Delta (92%), Korean Air (92%).

  • 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 £170). Flying from Kansas City to Seattle in July is currently the most expensive (average of £372). 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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Why should you use Cheapflights to find cheap flight tickets from Kansas City to Seattle?

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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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