Southwest® flights from Seattle/Tacoma to Des Moines from $178

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Low fares from Seattle/Tacoma to Des Moines

$

Seattle/Tacoma (SEA)to

Des Moines (DSM)
Depart: 12/07/2026

One-way

Basic

From
$178
Seen: 3 hrs ago

Seattle/Tacoma (SEA)to

Des Moines (DSM)
Depart: 10/06/2026

One-way

Basic

From
$189
Seen: 2 hrs ago

Seattle/Tacoma (SEA)to

Des Moines (DSM)
Depart: 10/10/2026

One-way

Basic

From
$192
Seen: 2 hrs ago

Seattle/Tacoma (SEA)to

Des Moines (DSM)
Depart: 10/07/2026

One-way

Basic

From
$216
Seen: 2 hrs ago

Seattle/Tacoma (SEA)to

Des Moines (DSM)
Depart: 10/13/2026

One-way

Basic

From
$216
Seen: 6 hrs ago

Seattle/Tacoma (SEA)to

Des Moines (DSM)
Depart: 10/15/2026

One-way

Basic

From
$221
Seen: 19 hrs ago

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Explore flights from Seattle/Tacoma to Des Moines

Sep 2026
From$269*
Seen: 6 hrs ago
One Way/Basic
Oct 2026
From$189*
Seen: 2 hrs ago
One Way/Basic
Nov 2026
No result for this month.
cmp-daily-histogram-bars-legend-min-price-aria-label $189
cmp-daily-histogram-bars-legend-max-price-aria-label $354
Displaying fares for September-2026
  • SEA–DSM, 09/11/2026: From $349
    11

    Fri

    SEP

  • SEA–DSM, 09/12/2026: From $283
    12

    Sat

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

    Sun

  • SEA–DSM: cmp-view-offers-disclaimer. Find Offers
    14

    Mon

  • SEA–DSM, 09/15/2026: From $269
    15

    Tue

  • SEA–DSM, 09/16/2026: From $269
    16

    Wed

  • SEA–DSM, 09/17/2026: From $354
    17

    Thu

  • SEA–DSM, 09/18/2026: From $354
    18

    Fri

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

    Sat

  • SEA–DSM, 09/20/2026: From $349
    20

    Sun

  • SEA–DSM, 09/21/2026: From $354
    21

    Mon

  • SEA–DSM, 09/22/2026: From $269
    22

    Tue

  • SEA–DSM, 09/23/2026: From $269
    23

    Wed

  • SEA–DSM, 09/24/2026: From $310
    24

    Thu

  • SEA–DSM, 09/25/2026: From $294
    25

    Fri

  • SEA–DSM, 09/26/2026: From $273
    26

    Sat

  • SEA–DSM, 09/27/2026: From $300
    27

    Sun

  • SEA–DSM, 09/28/2026: From $294
    28

    Mon

  • SEA–DSM, 09/29/2026: From $269
    29

    Tue

  • SEA–DSM, 09/30/2026: From $269
    30

    Wed

  • SEA–DSM, 10/01/2026: From $274
    01

    Thu

    OCT

  • SEA–DSM, 10/02/2026: From $259
    02

    Fri

  • SEA–DSM, 10/03/2026: From $235
    03

    Sat

  • SEA–DSM: cmp-view-offers-disclaimer. Find Offers
    04

    Sun

  • SEA–DSM, 10/05/2026: From $259
    05

    Mon

  • SEA–DSM, 10/06/2026: From $189
    06

    Tue

  • SEA–DSM, 10/07/2026: From $216
    07

    Wed

  • SEA–DSM: cmp-view-offers-disclaimer. Find Offers
    08

    Thu

  • SEA–DSM: cmp-view-offers-disclaimer. Find Offers
    09

    Fri

  • SEA–DSM, 10/10/2026: From $192
    10

    Sat

    • Range$189-$354

    *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:
    Des Moines Airport
    Distance:
    1465 miles

    Route Information

    55† 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 55 weekly flights from Seattle/Tacoma to Des Moines on Southwest Airlines.
    To find the lowest fares by day and time to fly Seattle/Tacoma to Des Moines with Southwest, check out our Low Fare Calendar.
    You can rent a car at Des Moines Airport book yours with your flight.
    Yes! Flights from Seattle/Tacoma to Des Moines—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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