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

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Low fares from Seattle/Tacoma to San Diego

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Seattle/Tacoma (SEA)to

San Diego (SAN)
Depart: 12/10/2026

One-way

Basic

From
$49
Seen: 12 hrs ago

Seattle/Tacoma (SEA)to

San Diego (SAN)
Depart: 12/08/2026

One-way

Basic

From
$49
Seen: 22 hrs ago

Seattle/Tacoma (SEA)to

San Diego (SAN)
Depart: 12/09/2026

One-way

Basic

From
$49
Seen: 21 hrs ago

Seattle/Tacoma (SEA)to

San Diego (SAN)
Depart: 12/06/2026

One-way

Basic

From
$49
Seen: 25 minutes ago

Seattle/Tacoma (SEA)to

San Diego (SAN)
Depart: 12/07/2026

One-way

Basic

From
$49
Seen: 20 hrs ago

Seattle/Tacoma (SEA)to

San Diego (SAN)
Depart: 12/14/2026

One-way

Basic

From
$54
Seen: 9 hrs ago
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Explore flights from Seattle/Tacoma to San Diego

cmp-daily-histogram-bars-legend-min-price-aria-label $49
cmp-daily-histogram-bars-legend-max-price-aria-label $376
Displaying fares for November-2026
  • SEA–SAN: cmp-view-offers-disclaimer. Find Offers
    13

    Fri

    NOV

  • SEA–SAN, 11/14/2026: From $296
    14

    Sat

  • SEA–SAN, 11/15/2026: From $296
    15

    Sun

  • SEA–SAN, 11/16/2026: From $296
    16

    Mon

  • SEA–SAN: cmp-view-offers-disclaimer. Find Offers
    17

    Tue

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

    Wed

  • SEA–SAN, 11/19/2026: From $274
    19

    Thu

  • SEA–SAN, 11/20/2026: From $274
    20

    Fri

  • SEA–SAN, 11/21/2026: From $274
    21

    Sat

  • SEA–SAN: cmp-view-offers-disclaimer. Find Offers
    22

    Sun

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

    Mon

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

    Tue

  • SEA–SAN, 11/25/2026: From $284
    25

    Wed

  • SEA–SAN, 11/26/2026: From $274
    26

    Thu

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

    Fri

  • SEA–SAN, 11/28/2026: From $295
    28

    Sat

  • SEA–SAN, 11/29/2026: From $376
    29

    Sun

  • SEA–SAN, 11/30/2026: From $229
    30

    Mon

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

    Tue

    DEC

  • SEA–SAN, 12/02/2026: From $234
    02

    Wed

  • SEA–SAN, 12/03/2026: From $149
    03

    Thu

  • SEA–SAN, 12/04/2026: From $149
    04

    Fri

  • SEA–SAN: cmp-view-offers-disclaimer. Find Offers
    05

    Sat

  • SEA–SAN, 12/06/2026: From $49
    06

    Sun

  • SEA–SAN, 12/07/2026: From $49
    07

    Mon

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

    Tue

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

    Wed

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

    Thu

  • SEA–SAN, 12/11/2026: From $125
    11

    Fri

  • SEA–SAN: cmp-view-offers-disclaimer. Find Offers
    12

    Sat

  • Range$49-$376

    Flight Details

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

    Explore San Diego

    Imagine yourself in San Diego, California—and then make it happen! Whether you’re visiting for business, pleasure, or a mix of both, Southwest offers a variety of travel options to help you transform your California dream into a reality. San Diego is located in the southernmost region of the state along the bucolic, surfer-friendly Pacific coastline. The weather here is warm and inviting, with temperatures averaging in the 70s year round. But believe it or not, San Diego holds a few gems that outshine the sunshine. From stunning beaches with breathtaking views to an exceptional restaurant scene and more, San Diego delights visitors and residents alike with its irresistible charm, making it hard to ever leave.

    Explore San Diego’s top sites during your trip. For starters, this city is home to the world-famous San Diego Zoo. See the zoo during your trip, and learn the stories of more than 3,700 animals. If you’re an ocean and/or history lover, San Diego’s Maritime Museum is a must see. At the museum, you can explore the decks of The Star of India, the world’s oldest active sailing ship.

    Questions we hear the most

    There are 151 weekly flights from Seattle/Tacoma to San Diego on Southwest Airlines.
    To find the lowest fares by day and time to fly Seattle/Tacoma to San Diego with Southwest, check out our Low Fare Calendar.
    You can rent a car at San Diego International Airport book yours with your flight.
    Yes! Flights from Seattle/Tacoma to San Diego—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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