Southwest® flights from Seattle/Tacoma to Kansas City from $159

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Low fares from Seattle/Tacoma to Kansas City

$

Seattle/Tacoma (SEA)to

Kansas City (MCI)
Depart: 09/05/2026

One-way

Basic

From
$159
Seen: 52 minutes ago

Seattle/Tacoma (SEA)to

Kansas City (MCI)
Depart: 09/11/2026

One-way

Basic

From
$169
Seen: 22 hrs ago

Seattle/Tacoma (SEA)to

Kansas City (MCI)
Depart: 08/29/2026

One-way

Basic

From
$173
Seen: 15 minutes ago

Seattle/Tacoma (SEA)to

Kansas City (MCI)
Depart: 09/26/2026

One-way

Basic

From
$173
Seen: 23 hrs ago

Seattle/Tacoma (SEA)to

Kansas City (MCI)
Depart: 11/02/2026

One-way

Basic

From
$178
Seen: 14 hrs ago

Seattle/Tacoma (SEA)to

Kansas City (MCI)
Depart: 10/10/2026

One-way

Basic

From
$183
Seen: 10 hrs ago

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Explore flights from Seattle/Tacoma to Kansas City

Aug 2026
From$173*
Seen: 15 minutes ago
One Way/Basic
Sep 2026
From$159*
Seen: 52 minutes ago
One Way/Basic
Oct 2026
From$183*
Seen: 14 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $173
cmp-daily-histogram-bars-legend-max-price-aria-label $479
Displaying fares for August-2026
  • SEA–MCI: cmp-view-offers-disclaimer. Find Offers
    01

    Sat

    AUG

  • SEA–MCI: cmp-view-offers-disclaimer. Find Offers
    02

    Sun

  • SEA–MCI: cmp-view-offers-disclaimer. Find Offers
    03

    Mon

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

    Tue

  • SEA–MCI: cmp-view-offers-disclaimer. Find Offers
    05

    Wed

  • SEA–MCI: cmp-view-offers-disclaimer. Find Offers
    06

    Thu

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

    Fri

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

    Sat

  • SEA–MCI, 08/09/2026: From $359
    09

    Sun

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

    Mon

  • SEA–MCI, 08/11/2026: From $354
    11

    Tue

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

    Wed

  • SEA–MCI: cmp-view-offers-disclaimer. Find Offers
    13

    Thu

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

    Fri

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

    Sat

  • SEA–MCI, 08/16/2026: From $305
    16

    Sun

  • SEA–MCI, 08/17/2026: From $284
    17

    Mon

  • SEA–MCI, 08/18/2026: From $284
    18

    Tue

  • SEA–MCI: cmp-view-offers-disclaimer. Find Offers
    19

    Wed

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

    Thu

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

    Fri

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

    Sat

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

    Sun

  • SEA–MCI, 08/24/2026: From $213
    24

    Mon

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

    Tue

  • SEA–MCI: cmp-view-offers-disclaimer. Find Offers
    26

    Wed

  • SEA–MCI: cmp-view-offers-disclaimer. Find Offers
    27

    Thu

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

    Fri

  • SEA–MCI, 08/29/2026: From $173
    29

    Sat

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

    Sun

  • SEA–MCI: cmp-view-offers-disclaimer. Find Offers
    31

    Mon

    • Range$173-$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:
    Seattle/Tacoma International Airport
    Arriving at:
    Kansas City International Airport
    Distance:
    1489 miles

    Route Information

    145† 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 145 weekly flights from Seattle/Tacoma to Kansas City on Southwest Airlines.
    To find the lowest fares by day and time to fly Seattle/Tacoma to Kansas City with Southwest, check out our Low Fare Calendar.
    You can rent a car at Kansas City International Airport book yours with your flight.
    Yes! Flights from Seattle/Tacoma to Kansas City—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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