Southwest® flights from San Diego to Seattle/Tacoma from $69

Promo Code

Low fares from San Diego to Seattle/Tacoma

$

San Diego (SAN)to

Seattle/Tacoma (SEA)
Depart: 11/05/2026

One-way

Basic

From
$69
Seen: 18 hrs ago

San Diego (SAN)to

Seattle/Tacoma (SEA)
Depart: 09/29/2026

One-way

Basic

From
$69
Seen: 21 hrs ago

San Diego (SAN)to

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

One-way

Basic

From
$69
Seen: 22 hrs ago

San Diego (SAN)to

Seattle/Tacoma (SEA)
Depart: 10/15/2026

One-way

Basic

From
$69
Seen: 23 hrs ago

San Diego (SAN)to

Seattle/Tacoma (SEA)
Depart: 10/18/2026

One-way

Basic

From
$69
Seen: 15 hrs ago

San Diego (SAN)to

Seattle/Tacoma (SEA)
Depart: 10/14/2026

One-way

Basic

From
$69
Seen: 8 hrs ago

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Explore flights from San Diego to Seattle/Tacoma

Aug 2026
From$69*
Seen: 10 minutes ago
One Way/Basic
Sep 2026
From$69*
Seen: 22 hrs ago
One Way/Basic
Oct 2026
From$69*
Seen: 55 minutes ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $69
cmp-daily-histogram-bars-legend-max-price-aria-label $364
Displaying fares for August-2026
  • SAN–SEA, 08/03/2026: From $364
    03

    Mon

    AUG

  • SAN–SEA, 08/04/2026: From $364
    04

    Tue

  • SAN–SEA, 08/05/2026: From $364
    05

    Wed

  • SAN–SEA, 08/06/2026: From $364
    06

    Thu

  • SAN–SEA, 08/07/2026: From $364
    07

    Fri

  • SAN–SEA, 08/08/2026: From $364
    08

    Sat

  • SAN–SEA, 08/09/2026: From $269
    09

    Sun

  • SAN–SEA, 08/10/2026: From $269
    10

    Mon

  • SAN–SEA, 08/11/2026: From $269
    11

    Tue

  • SAN–SEA, 08/12/2026: From $269
    12

    Wed

  • SAN–SEA, 08/13/2026: From $269
    13

    Thu

  • SAN–SEA, 08/14/2026: From $269
    14

    Fri

  • SAN–SEA, 08/15/2026: From $194
    15

    Sat

  • SAN–SEA, 08/16/2026: From $194
    16

    Sun

  • SAN–SEA, 08/17/2026: From $194
    17

    Mon

  • SAN–SEA, 08/18/2026: From $194
    18

    Tue

  • SAN–SEA, 08/19/2026: From $194
    19

    Wed

  • SAN–SEA, 08/20/2026: From $194
    20

    Thu

  • SAN–SEA, 08/21/2026: From $194
    21

    Fri

  • SAN–SEA, 08/22/2026: From $194
    22

    Sat

  • SAN–SEA: cmp-view-offers-disclaimer. Find Offers
    23

    Sun

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

    Mon

  • SAN–SEA, 08/25/2026: From $119
    25

    Tue

  • SAN–SEA, 08/26/2026: From $69
    26

    Wed

  • SAN–SEA, 08/27/2026: From $69
    27

    Thu

  • SAN–SEA, 08/28/2026: From $79
    28

    Fri

  • SAN–SEA, 08/29/2026: From $79
    29

    Sat

  • SAN–SEA, 08/30/2026: From $69
    30

    Sun

  • SAN–SEA, 08/31/2026: From $69
    31

    Mon

  • SAN–SEA, 09/01/2026: From $69
    01

    Tue

    SEP

  • SAN–SEA, 09/02/2026: From $69
    02

    Wed

    • Range$69-$364

    *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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