Southwest® flights from Kansas City to Seattle/Tacoma from $169

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Low fares from Kansas City to Seattle/Tacoma

$

Kansas City (MCI)to

Seattle/Tacoma (SEA)
Depart: 10/30/2026

One-way

Basic

From
$169
Seen: 21 hrs ago

Kansas City (MCI)to

Seattle/Tacoma (SEA)
Depart: 09/05/2026

One-way

Basic

From
$169
Seen: 4 hrs ago

Kansas City (MCI)to

Seattle/Tacoma (SEA)
Depart: 09/11/2026

One-way

Basic

From
$169
Seen: 4 hrs ago

Kansas City (MCI)to

Seattle/Tacoma (SEA)
Depart: 09/06/2026

One-way

Basic

From
$169
Seen: 4 hrs ago

Kansas City (MCI)to

Seattle/Tacoma (SEA)
Depart: 09/19/2026

One-way

Basic

From
$173
Seen: 9 hrs ago

Kansas City (MCI)to

Seattle/Tacoma (SEA)
Depart: 09/26/2026

One-way

Basic

From
$173
Seen: 9 hrs ago

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Explore flights from Kansas City to Seattle/Tacoma

Aug 2026
From$183*
Seen: 2 hrs ago
One Way/Basic
Sep 2026
From$169*
Seen: 4 hrs ago
One Way/Basic
Oct 2026
From$169*
Seen: 21 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $183
cmp-daily-histogram-bars-legend-max-price-aria-label $479
Displaying fares for August-2026
  • MCI–SEA, 08/02/2026: From $479
    02

    Sun

    AUG

  • MCI–SEA, 08/03/2026: From $479
    03

    Mon

  • MCI–SEA, 08/04/2026: From $479
    04

    Tue

  • MCI–SEA, 08/05/2026: From $479
    05

    Wed

  • MCI–SEA, 08/06/2026: From $479
    06

    Thu

  • MCI–SEA, 08/07/2026: From $354
    07

    Fri

  • MCI–SEA, 08/08/2026: From $344
    08

    Sat

  • MCI–SEA, 08/09/2026: From $354
    09

    Sun

  • MCI–SEA: cmp-view-offers-disclaimer. Find Offers
    10

    Mon

  • MCI–SEA: cmp-view-offers-disclaimer. Find Offers
    11

    Tue

  • MCI–SEA, 08/12/2026: From $354
    12

    Wed

  • MCI–SEA, 08/13/2026: From $354
    13

    Thu

  • MCI–SEA, 08/14/2026: From $284
    14

    Fri

  • MCI–SEA, 08/15/2026: From $274
    15

    Sat

  • MCI–SEA, 08/16/2026: From $284
    16

    Sun

  • MCI–SEA: cmp-view-offers-disclaimer. Find Offers
    17

    Mon

  • MCI–SEA: cmp-view-offers-disclaimer. Find Offers
    18

    Tue

  • MCI–SEA, 08/19/2026: From $284
    19

    Wed

  • MCI–SEA, 08/20/2026: From $284
    20

    Thu

  • MCI–SEA, 08/21/2026: From $216
    21

    Fri

  • MCI–SEA, 08/22/2026: From $183
    22

    Sat

  • MCI–SEA, 08/23/2026: From $219
    23

    Sun

  • MCI–SEA: cmp-view-offers-disclaimer. Find Offers
    24

    Mon

  • MCI–SEA, 08/25/2026: From $183
    25

    Tue

  • MCI–SEA, 08/26/2026: From $183
    26

    Wed

  • MCI–SEA, 08/27/2026: From $183
    27

    Thu

  • MCI–SEA, 08/28/2026: From $216
    28

    Fri

  • MCI–SEA, 08/29/2026: From $183
    29

    Sat

  • MCI–SEA, 08/30/2026: From $219
    30

    Sun

  • MCI–SEA, 08/31/2026: From $183
    31

    Mon

  • MCI–SEA, 09/01/2026: From $183
    01

    Tue

    SEP

    • Range$183-$479

    *Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Additional fees and charges for optional products and services may apply. Modifying this information may result in a different fare. To find the most updated fare, please visit Southwest.com. Fares listed are Basic, which are subject to additional terms and conditions.

    Flight Details

    Departing from:
    Kansas City International Airport
    Arriving at:
    Seattle/Tacoma International Airport
    Distance:
    1489 miles

    Route Information

    150† Weekly flights

    † Weekly flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025. Note: route may not operate every day of the week.

    ‡ Nonstop flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025.

    Questions we hear the most

    There are 150 weekly flights from Kansas City to Seattle/Tacoma on Southwest Airlines.
    To find the lowest fares by day and time to fly Kansas City to Seattle/Tacoma with Southwest, check out our Low Fare Calendar.
    You can rent a car at Seattle/Tacoma International Airport book yours with your flight.
    Yes! Flights from Kansas City to Seattle/Tacoma—or from here or there to anywhere—can be changed with no change fees. Fare difference may apply.
    Check the status of your upcoming Southwest flight.
    Check out the Southwest Airlines® Help Center for answers about everything Southwest.

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