Southwest® flights from Salt Lake City to Seattle/Tacoma from $139

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Low fares from Salt Lake City to Seattle/Tacoma

$

Salt Lake City (SLC)to

Seattle/Tacoma (SEA)
Depart: 09/30/2026

One-way

Basic

From
$139
Seen: 21 hrs ago

Salt Lake City (SLC)to

Seattle/Tacoma (SEA)
Depart: 10/17/2026

One-way

Basic

From
$139
Seen: 3 hrs ago

Salt Lake City (SLC)to

Seattle/Tacoma (SEA)
Depart: 11/17/2026

One-way

Basic

From
$139
Seen: 19 hrs ago

Salt Lake City (SLC)to

Seattle/Tacoma (SEA)
Depart: 11/18/2026

One-way

Basic

From
$139
Seen: 4 hrs ago

Salt Lake City (SLC)to

Seattle/Tacoma (SEA)
Depart: 10/13/2026

One-way

Basic

From
$139
Seen: 4 hrs ago

Salt Lake City (SLC)to

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

One-way

Basic

From
$139
Seen: 8 hrs ago

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Explore flights from Salt Lake City to Seattle/Tacoma

Aug 2026
From$324*
Seen: 25 minutes ago
One Way/Basic
Sep 2026
From$139*
Seen: 21 hrs ago
One Way/Basic
Oct 2026
From$139*
Seen: 4 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $139
cmp-daily-histogram-bars-legend-max-price-aria-label $395
Displaying fares for August-2026
  • SLC–SEA, 08/20/2026: From $394
    20

    Thu

    AUG

  • SLC–SEA, 08/21/2026: From $394
    21

    Fri

  • SLC–SEA, 08/22/2026: From $395
    22

    Sat

  • SLC–SEA, 08/23/2026: From $394
    23

    Sun

  • SLC–SEA, 08/24/2026: From $394
    24

    Mon

  • SLC–SEA: cmp-view-offers-disclaimer. Find Offers
    25

    Tue

  • SLC–SEA, 08/26/2026: From $324
    26

    Wed

  • SLC–SEA, 08/27/2026: From $324
    27

    Thu

  • SLC–SEA: cmp-view-offers-disclaimer. Find Offers
    28

    Fri

  • SLC–SEA: cmp-view-offers-disclaimer. Find Offers
    29

    Sat

  • SLC–SEA: cmp-view-offers-disclaimer. Find Offers
    30

    Sun

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

    Mon

  • SLC–SEA, 09/01/2026: From $324
    01

    Tue

    SEP

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

    Wed

  • SLC–SEA, 09/03/2026: From $264
    03

    Thu

  • SLC–SEA, 09/04/2026: From $239
    04

    Fri

  • SLC–SEA, 09/05/2026: From $234
    05

    Sat

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

    Sun

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    07

    Mon

  • SLC–SEA, 09/08/2026: From $234
    08

    Tue

  • SLC–SEA, 09/09/2026: From $234
    09

    Wed

  • SLC–SEA, 09/10/2026: From $179
    10

    Thu

  • SLC–SEA, 09/11/2026: From $179
    11

    Fri

  • SLC–SEA, 09/12/2026: From $179
    12

    Sat

  • SLC–SEA, 09/13/2026: From $179
    13

    Sun

  • SLC–SEA, 09/14/2026: From $179
    14

    Mon

  • SLC–SEA: cmp-view-offers-disclaimer. Find Offers
    15

    Tue

  • SLC–SEA: cmp-view-offers-disclaimer. Find Offers
    16

    Wed

  • SLC–SEA, 09/17/2026: From $179
    17

    Thu

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

    Fri

  • SLC–SEA, 09/19/2026: From $139
    19

    Sat

    • Range$139-$395

    *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:
    Salt Lake City International Airport
    Arriving at:
    Seattle/Tacoma International Airport
    Distance:
    689 miles

    Route Information

    155† 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 155 weekly flights from Salt Lake City to Seattle/Tacoma on Southwest Airlines.
    To find the lowest fares by day and time to fly Salt Lake 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 Salt Lake 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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