Southwest® flights from San Diego to Seattle/Tacoma from $49

Promo Code

Low fares from San Diego to Seattle/Tacoma

$

San Diego (SAN)to

Seattle/Tacoma (SEA)
Depart: 12/08/2026

One-way

Basic

From
$49
Seen: 15 hrs ago

San Diego (SAN)to

Seattle/Tacoma (SEA)
Depart: 12/02/2026

One-way

Basic

From
$49
Seen: 15 hrs ago

San Diego (SAN)to

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

One-way

Basic

From
$49
Seen: 19 hrs ago

San Diego (SAN)to

Seattle/Tacoma (SEA)
Depart: 12/04/2026

One-way

Basic

From
$49
Seen: 13 hrs ago

San Diego (SAN)to

Seattle/Tacoma (SEA)
Depart: 12/13/2026

One-way

Basic

From
$49
Seen: 5 hrs ago

San Diego (SAN)to

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

One-way

Basic

From
$49
Seen: 22 hrs ago

Looking for more low-fare flights?

Check out the Low Fare Calendar to find a fare that works for you. Just choose the month you want to depart and return, and we’ll show you the best fares available.

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Explore flights from San Diego to Seattle/Tacoma

Nov 2026
From$229*
Seen: 17 hrs ago
One Way/Basic
Dec 2026
From$49*
Seen: 17 hrs ago
One Way/Basic
Jan 2027
From$85*
Seen: 16 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $49
cmp-daily-histogram-bars-legend-max-price-aria-label $429
Displaying fares for November-2026
  • SAN–SEA, 11/13/2026: From $291
    13

    Fri

    NOV

  • SAN–SEA, 11/14/2026: From $291
    14

    Sat

  • SAN–SEA, 11/15/2026: From $291
    15

    Sun

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

    Mon

  • SAN–SEA, 11/17/2026: From $291
    17

    Tue

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

    Wed

  • SAN–SEA, 11/19/2026: From $269
    19

    Thu

  • SAN–SEA, 11/20/2026: From $269
    20

    Fri

  • SAN–SEA, 11/21/2026: From $269
    21

    Sat

  • SAN–SEA, 11/22/2026: From $269
    22

    Sun

  • SAN–SEA, 11/23/2026: From $269
    23

    Mon

  • SAN–SEA, 11/24/2026: From $269
    24

    Tue

  • SAN–SEA, 11/25/2026: From $229
    25

    Wed

  • SAN–SEA, 11/26/2026: From $229
    26

    Thu

  • SAN–SEA, 11/27/2026: From $229
    27

    Fri

  • SAN–SEA, 11/28/2026: From $371
    28

    Sat

  • SAN–SEA, 11/29/2026: From $429
    29

    Sun

  • SAN–SEA, 11/30/2026: From $239
    30

    Mon

  • SAN–SEA, 12/01/2026: From $229
    01

    Tue

    DEC

  • SAN–SEA, 12/02/2026: From $49
    02

    Wed

  • SAN–SEA, 12/03/2026: From $49
    03

    Thu

  • SAN–SEA, 12/04/2026: From $49
    04

    Fri

  • SAN–SEA, 12/05/2026: From $49
    05

    Sat

  • SAN–SEA, 12/06/2026: From $169
    06

    Sun

  • SAN–SEA, 12/07/2026: From $59
    07

    Mon

  • SAN–SEA, 12/08/2026: From $49
    08

    Tue

  • SAN–SEA, 12/09/2026: From $49
    09

    Wed

  • SAN–SEA, 12/10/2026: From $49
    10

    Thu

  • SAN–SEA, 12/11/2026: From $49
    11

    Fri

  • SAN–SEA, 12/12/2026: From $49
    12

    Sat

    • Range$49-$429

    *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

    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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