Southwest® flights from San Diego to Seattle/Tacoma from $59

Promo Code

Low fares from San Diego to Seattle/Tacoma

$

San Diego (SAN)to

Seattle/Tacoma (SEA)
Depart: 11/12/2026

One-way

Basic

From
$59
Seen: 7 hrs ago

San Diego (SAN)to

Seattle/Tacoma (SEA)
Depart: 09/12/2026

One-way

Basic

From
$59
Seen: 8 hrs ago

San Diego (SAN)to

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

One-way

Basic

From
$59
Seen: 8 hrs ago

San Diego (SAN)to

Seattle/Tacoma (SEA)
Depart: 11/02/2026

One-way

Basic

From
$59
Seen: 7 hrs ago

San Diego (SAN)to

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

One-way

Basic

From
$59
Seen: 8 hrs ago

San Diego (SAN)to

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

One-way

Basic

From
$59
Seen: 6 hrs ago

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Explore flights from San Diego to Seattle/Tacoma

Aug 2026
From$269*
Seen: 23 hrs ago
One Way/Basic
Sep 2026
From$59*
Seen: 6 hrs ago
One Way/Basic
Oct 2026
From$59*
Seen: 7 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $59
cmp-daily-histogram-bars-legend-max-price-aria-label $294
Displaying fares for August-2026
  • SAN–SEA, 08/23/2026: From $294
    23

    Sun

    AUG

  • SAN–SEA, 08/24/2026: From $294
    24

    Mon

  • SAN–SEA, 08/25/2026: From $294
    25

    Tue

  • SAN–SEA, 08/26/2026: From $294
    26

    Wed

  • SAN–SEA, 08/27/2026: From $294
    27

    Thu

  • SAN–SEA, 08/28/2026: From $294
    28

    Fri

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

    Sat

  • SAN–SEA, 08/30/2026: From $269
    30

    Sun

  • SAN–SEA, 08/31/2026: From $269
    31

    Mon

  • SAN–SEA, 09/01/2026: From $269
    01

    Tue

    SEP

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

    Wed

  • SAN–SEA, 09/03/2026: From $269
    03

    Thu

  • SAN–SEA, 09/04/2026: From $269
    04

    Fri

  • SAN–SEA, 09/05/2026: From $194
    05

    Sat

  • SAN–SEA, 09/06/2026: From $194
    06

    Sun

  • SAN–SEA, 09/07/2026: From $256
    07

    Mon

  • SAN–SEA, 09/08/2026: From $194
    08

    Tue

  • SAN–SEA, 09/09/2026: From $194
    09

    Wed

  • SAN–SEA, 09/10/2026: From $194
    10

    Thu

  • SAN–SEA, 09/11/2026: From $194
    11

    Fri

  • SAN–SEA, 09/12/2026: From $59
    12

    Sat

  • SAN–SEA, 09/13/2026: From $79
    13

    Sun

  • SAN–SEA, 09/14/2026: From $64
    14

    Mon

  • SAN–SEA, 09/15/2026: From $59
    15

    Tue

  • SAN–SEA, 09/16/2026: From $59
    16

    Wed

  • SAN–SEA, 09/17/2026: From $59
    17

    Thu

  • SAN–SEA, 09/18/2026: From $86
    18

    Fri

  • SAN–SEA, 09/19/2026: From $59
    19

    Sat

  • SAN–SEA, 09/20/2026: From $134
    20

    Sun

  • SAN–SEA, 09/21/2026: From $59
    21

    Mon

  • SAN–SEA, 09/22/2026: From $79
    22

    Tue

    • Range$59-$294

    *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:
    San Diego International Airport
    Arriving at:
    Seattle/Tacoma International Airport
    Distance:
    1050 miles

    Route Information

    152† 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 152 weekly flights from San Diego to Seattle/Tacoma on Southwest Airlines.
    To find the lowest fares by day and time to fly San Diego 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 San Diego 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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