MCI - SEA

£117 Find Cheap Flights from Kansas City to Seattle – Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
£260
Typical prices: £261-£395
Delta
Sun 2/12Wed 12/12
MCI - SEA • 1 stop
Cheapest direct flights
£296
Typical prices: £266-£401
Delta
Mon 3/12Sun 9/12
MCI - SEA • Direct
Direct flights
You can fly direct with Alaska Airlines and Delta. Average duration is 4h 13m
Direct flights
+1
Direct flights
+1
When to book
in advance
Our data shows that travellers who book at least 23 weeks in advance save around 49% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 48% price drop
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Cheapest • Avg £146 (return)
Shortest trip • 5h 39m (one-way)
Insights
Insights
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We hope you enjoy your trip to Seattle!
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Booking Insights
Flight Deals

Cheap Flights from Kansas City to Seattle (MCI-SEA)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Kansas City to Seattle

Wed, 2 Dec - Sat, 12 Dec
Delta Logo
09:59 - 20:49MCI  Kansas City-SEA Seattle/Tacoma Intl
12h 50m1 stop Austin Bergstrom
Delta Logo
17:45 - 09:19SEA  Seattle/Tacoma Intl-MCI Kansas City
13h 34m1 stop Austin Bergstrom
£260Delta
Wed, 2 Dec - Fri, 11 Dec
Delta Logo
09:59 - 20:49MCI  Kansas City-SEA Seattle/Tacoma Intl
12h 50m1 stop Austin Bergstrom
Delta Logo
17:54 - 23:23SEA  Seattle/Tacoma Intl-MCI Kansas City
3h 29mdirect
£261Delta
Thu, 3 Dec - Mon, 7 Dec
United Airlines Logo
05:45 - 12:20MCI  Kansas City-SEA Seattle/Tacoma Intl
8h 35m2 stops Denver Intl San Francisco
United Airlines Logo
14:05 - 23:07SEA  Seattle/Tacoma Intl-MCI Kansas City
7h 02m1 stop Chicago O'Hare Intl
£267United Airlines
Wed, 2 Dec - Tue, 8 Dec
Delta Logo
09:59 - 20:49MCI  Kansas City-SEA Seattle/Tacoma Intl
12h 50m1 stop Austin Bergstrom
Delta Logo
22:40 - 11:05SEA  Seattle/Tacoma Intl-MCI Kansas City
10h 25m1 stop Atlanta Hartsfield-Jackson
£268Delta
Fri, 12 Feb - Sat, 13 Feb
Delta Logo
18:25 - 08:49MCI  Kansas City-SEA Seattle/Tacoma Intl
16h 24m1 stop Austin Bergstrom
Delta Logo
17:50 - 09:35SEA  Seattle/Tacoma Intl-MCI Kansas City
13h 45m1 stop Austin Bergstrom
£274Delta
Fri, 4 Dec - Wed, 9 Dec
Delta Logo
19:59 - 09:00MCI  Kansas City-SEA Seattle/Tacoma Intl
15h 01m1 stop Austin Bergstrom
Delta Logo
17:54 - 23:23SEA  Seattle/Tacoma Intl-MCI Kansas City
3h 29mdirect
£276Delta
Sat, 6 Feb - Fri, 19 Feb
Delta Logo
10:05 - 19:04MCI  Kansas City-SEA Seattle/Tacoma Intl
10h 59m1 stop Austin Bergstrom
Delta Logo
17:50 - 09:35SEA  Seattle/Tacoma Intl-MCI Kansas City
13h 45m1 stop Austin Bergstrom
£278Delta
Thu, 26 Nov - Tue, 1 Dec
United Airlines Logo
05:45 - 09:47MCI  Kansas City-SEA Seattle/Tacoma Intl
6h 02m1 stop Denver Intl
United Airlines Logo
06:15 - 15:31SEA  Seattle/Tacoma Intl-MCI Kansas City
7h 16m1 stop Los Angeles
£281United Airlines
Fri, 4 Dec - Tue, 8 Dec
Delta Logo
19:59 - 09:00MCI  Kansas City-SEA Seattle/Tacoma Intl
15h 01m1 stop Austin Bergstrom
Delta Logo
08:30 - 19:09SEA  Seattle/Tacoma Intl-MCI Kansas City
8h 39m1 stop Atlanta Hartsfield-Jackson
£283Delta
Thu, 3 Dec - Wed, 9 Dec
Southwest Logo
16:45 - 22:50MCI  Kansas City-SEA Seattle/Tacoma Intl
8h 05m1 stop Denver Intl
Southwest Logo
05:40 - 16:35SEA  Seattle/Tacoma Intl-MCI Kansas City
8h 55m2 stops Phoenix Sky Harbor Intl Denver Intl
£285Southwest
Booking Insights

Price, demand, and travel trends for Kansas City to Seattle flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

How much is a return flight from Kansas City to Seattle?

Return flights from Kansas City to Seattle typically range from £261 to £395. The lowest price found in the past 5 days was £260 on Delta.

What's the cheapest day of the week to fly from Kansas City to Seattle?

Based on deals KAYAK users found in the last 12 months, Friday is the cheapest day of the week to fly from Kansas City to Seattle. It's 9% cheaper than the average day, while Sunday is the most expensive, with prices 10% higher.

What is the cheapest month to fly from Kansas City to Seattle?

•February is the cheapest month to fly from Kansas City to Seattle at £170 return.
•July (£372) and October (£356) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 118% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Kansas City to Seattle the cheapest?

Flights from Kansas City to Seattle are cheapest 23 weeks before departure. Booking in this window typically costs about 49% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Key details for Kansas City to Seattle flights

Low season

December

Cheapest flight

£117
Beat the crowds with an average 61% drop in traveller numbers.
The most popular month to fly with an average 97% increase in traveller numbers.
One-way flight from Kansas City to Seattle

When to book flights from Kansas City to Seattle

Are your dates flexible? Find out the best times to travel from Kansas City to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Kansas City to Seattle flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • What are the earliest and latest flights from Kansas City to Seattle?

    These are the earliest and latest flight times available from Kansas City to Seattle:

    • Earliest: departs at 06:00 and lands at 10:13
    • Latest: departs at 16:22 and lands at 20:35.

    The flight takes about 4h 13m.

  • Which cabin classes can I book on flights from Kansas City to Seattle?

    Only Economy class is available on flights from Kansas City to Seattle.

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

    A direct flight from Kansas City to Seattle takes 4h 13m, covering 1,485 miles.

  • Do I need a passport to fly from Kansas City to Seattle?

    No, a passport is not required for this domestic route, but you will need another form of identification, such as a driving licence.

  • How much should I expect to pay for a Kansas City to Seattle flight?

    Return flights from Kansas City to Seattle range from £261 to £395, with an average of £325 over the past 12 months. Anything below £261 counts as a good deal.

  • How expensive are last-minute Kansas City to Seattle flights?

    Last-minute fares on this route (booked within two weeks of departure) run 61% above the £325 route average. Book 23 weeks before departure for the lowest fares.

  • How much can I save by having a stopover when flying from Kansas City to Seattle?

    On this route, stopover flights are cheaper than direct options on average. Stopover fares average £146 return via Dallas/Fort Worth (DFW), compared with £329 for direct.

  • What is the standard checked bag allowance on flights from Kansas City to Seattle?

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge £26–£67 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Kansas City to Seattle?

    The Boeing 737 family is used most often on this route, operated mainly by American Airlines. Other aircraft seen on the route include Boeing 737 MAX 8 variants.

  • How are flight departures from Kansas City to Seattle spread across the day?

    Morning is the busiest departure period on Kansas City to Seattle flights, with 67% leaving in that window. Afternoon departures account for 33%, Evening flights for 0%, and Night flights for 0%.

  • Have flight prices from Kansas City to Seattle changed much recently?

    Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about £260 to £734. That means the highest observed fare was about 3x higher than the lowest one.

  • Which airlines offer Wi-Fi on Kansas City to Seattle flights?

    Three airlines offer in-flight Wi-Fi on Kansas City to Seattle flights:

    • Alaska Airlines
    • Delta
    • JetBlue

    Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty programme, while others are paid add-ons priced by flight length.

  • How are flight prices from Kansas City to Seattle looking right now?

    One-way fares from Kansas City to Seattle are currently lower than usual. Average one-way flight prices are about £155, which is 22% below the typical average for this route.

  • Which car hire options are available at Seattle/Tacoma Intl Airport (SEA)?

    Seattle/Tacoma Intl Airport (SEA) hosts 5 major car hire companies, with daily rates starting from around £46 for economy cars. Top options include:

    • Fox
    • Europcar
    • Thrifty
    • Budget
    • Hertz

  • Which airports can I use when flying from Kansas City to Seattle?

    Flights from Kansas City to Seattle usually depart from Kansas City (MCI) and arrive at Seattle/Tacoma Intl (SEA).

  • Which airports do connecting flights from Kansas City to Seattle pass through?

    One-stop flights from Kansas City to Seattle most commonly connect through:

    • Denver Intl (DEN) – 80% of one-stop connections
    • Las Vegas Harry Reid Intl (LAS) – 6% of one-stop connections
    • Dallas/Fort Worth (DFW) – 4% of one-stop connections
    • Los Angeles (LAX) – 4% of one-stop connections

  • Can I save money by using flexible dates for flights from Kansas City to Seattle?

    Yes. Flexible dates can save you up to 17% on flights from Kansas City to Seattle. Friday is the cheapest departure day at £299 return on average, while Sunday is the most expensive at £358, a difference of £59.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • Which airlines fly from Kansas City to Seattle?

    2 airlines operate flights between Kansas City and Seattle. The airlines offering direct flights on this route include:

    • Alaska Airlines
    • Delta

  • How much time can I save by choosing a different stopover airport from Kansas City to Seattle?

    Flying via Salt Lake City (SLC) gives the shortest average 1-stop total travel time of 5h 39m, compared to 6h 52m via Dallas/Fort Worth (DFW) and 7h 11m via Los Angeles (LAX).

  • What is the time difference between Kansas City and Seattle?

    Seattle is 2 hours behind Kansas City (Pacific Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Seattle?

    Some of the most popular sights in Seattle are The Westin Seattle, Seattle Center, and Seattle Marriott Waterfront. These are among the most viewed places in Seattle on KAYAK.

  • Which airlines offer extra legroom and free seat selection on Kansas City to Seattle flights?

    Among airlines operating Kansas City to Seattle flights:

    • Alaska Airlines: offers extra legroom; offers free seat selection
    • Delta: offers extra legroom; offers free seat selection
    • American Airlines: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on Kansas City to Seattle flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Alaska Airlines: a cabin bag and a checked bag in Economy class
    • Delta: a cabin bag and a checked bag in Economy class
    • American Airlines: a cabin bag and a checked bag in Business Class

    Baggage allowance can vary by ticket type, cabin class, route, and airline, so always check the fare details before booking.

Your guide to booking Kansas City to Seattle flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Friday departure and avoid flying on Sunday. On this route, Friday flights average £299, about £59 less than Sunday fares (16% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 23 weeks before you fly. On this route, that window historically saves about 49% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Kansas City to Seattle trip for February. Fares historically average £170 return in that month – typically £202 less than the most expensive month, which is July (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Dallas/Fort Worth Airport (DFW) can be cheaper than flying direct. The cheapest stopover option averages £146 return on this route – about £183 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Seattle/Tacoma Intl Airport.

    • Coast Gateway Hotel
    • Seattle Airport Marriott
    • Fairfield by Marriott Inn & Suites Seattle Sea-Tac Airport

Prefer to fly direct from Kansas City to Seattle?

 
Find which airlines fly direct from Kansas City Airport to Seattle/Tacoma Intl Airport, which days they fly and book direct flights.

Direct departures

Kansas City to Seattle/Tacoma Intl

Monday

Alaska Airlines,Delta

Alaska Airlines,Delta

Tuesday

Alaska Airlines,Delta

Alaska Airlines,Delta

Wednesday

Alaska Airlines,Delta

Alaska Airlines,Delta

Thursday

Alaska Airlines,Delta

Alaska Airlines,Delta

Friday

Alaska Airlines,Delta

Alaska Airlines,Delta

Saturday

Alaska Airlines,Delta

Alaska Airlines,Delta

Sunday

Alaska Airlines,Delta

Alaska Airlines,Delta

See more direct flights

Direct returns

Seattle/Tacoma Intl to Kansas City

Monday

Alaska Airlines,Delta

Alaska Airlines,Delta

Tuesday

Alaska Airlines,Delta

Alaska Airlines,Delta

Wednesday

Alaska Airlines,Delta

Alaska Airlines,Delta

Thursday

Alaska Airlines,Delta

Alaska Airlines,Delta

Friday

Alaska Airlines,Delta

Alaska Airlines,Delta

Saturday

Alaska Airlines,Delta

Alaska Airlines,Delta

Sunday

Alaska Airlines,Delta

Alaska Airlines,Delta

See more direct flights

More options for your flight from Kansas City to Seattle

Complete your trip to Seattle with a hotel stay or car hire