Southwest® flights from Seattle/Tacoma to San Francisco from $89

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Low fares from Seattle/Tacoma to San Francisco

$

Seattle/Tacoma (SEA)to

San Francisco (SFO)
Depart: 11/18/2026

One-way

Basic

From
$89
Seen: 14 hrs ago

Seattle/Tacoma (SEA)to

San Francisco (SFO)
Depart: 12/05/2026

One-way

Basic

From
$89
Seen: 23 hrs ago

Seattle/Tacoma (SEA)to

San Francisco (SFO)
Depart: 10/26/2026

One-way

Basic

From
$89
Seen: 10 hrs ago

Seattle/Tacoma (SEA)to

San Francisco (SFO)
Depart: 01/09/2027

One-way

Basic

From
$89
Seen: 15 hrs ago

Seattle/Tacoma (SEA)to

San Francisco (SFO)
Depart: 11/09/2026

One-way

Basic

From
$89
Seen: 21 hrs ago

Seattle/Tacoma (SEA)to

San Francisco (SFO)
Depart: 10/29/2026

One-way

Basic

From
$89
Seen: 15 hrs ago

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Explore flights from Seattle/Tacoma to San Francisco

Oct 2026
From$89*
Seen: 10 hrs ago
One Way/Basic
Nov 2026
From$89*
Seen: 21 hrs ago
One Way/Basic
Dec 2026
From$89*
Seen: 23 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $89
cmp-daily-histogram-bars-legend-max-price-aria-label $389
Displaying fares for October-2026
  • SEA–SFO, 10/03/2026: From $389
    03

    Sat

    OCT

  • SEA–SFO: cmp-view-offers-disclaimer. Find Offers
    04

    Sun

  • SEA–SFO, 10/05/2026: From $389
    05

    Mon

  • SEA–SFO, 10/06/2026: From $389
    06

    Tue

  • SEA–SFO: cmp-view-offers-disclaimer. Find Offers
    07

    Wed

  • SEA–SFO: cmp-view-offers-disclaimer. Find Offers
    08

    Thu

  • SEA–SFO, 10/09/2026: From $347
    09

    Fri

  • SEA–SFO, 10/10/2026: From $307
    10

    Sat

  • SEA–SFO, 10/11/2026: From $307
    11

    Sun

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

    Mon

  • SEA–SFO: cmp-view-offers-disclaimer. Find Offers
    13

    Tue

  • SEA–SFO, 10/14/2026: From $307
    14

    Wed

  • SEA–SFO, 10/15/2026: From $307
    15

    Thu

  • SEA–SFO, 10/16/2026: From $237
    16

    Fri

  • SEA–SFO, 10/17/2026: From $237
    17

    Sat

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

    Sun

  • SEA–SFO, 10/19/2026: From $237
    19

    Mon

  • SEA–SFO, 10/20/2026: From $237
    20

    Tue

  • SEA–SFO: cmp-view-offers-disclaimer. Find Offers
    21

    Wed

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

    Thu

  • SEA–SFO, 10/23/2026: From $152
    23

    Fri

  • SEA–SFO, 10/24/2026: From $152
    24

    Sat

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

    Sun

  • SEA–SFO, 10/26/2026: From $89
    26

    Mon

  • SEA–SFO: cmp-view-offers-disclaimer. Find Offers
    27

    Tue

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

    Wed

  • SEA–SFO, 10/29/2026: From $89
    29

    Thu

  • SEA–SFO, 10/30/2026: From $152
    30

    Fri

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

    Sat

  • SEA–SFO, 11/01/2026: From $187
    01

    Sun

    NOV

  • SEA–SFO, 11/02/2026: From $119
    02

    Mon

    • Range$89-$389

    *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:
    Seattle/Tacoma International Airport
    Arriving at:
    San Francisco International Airport
    Distance:
    679 miles

    Route Information

    115† 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 115 weekly flights from Seattle/Tacoma to San Francisco on Southwest Airlines.
    To find the lowest fares by day and time to fly Seattle/Tacoma to San Francisco with Southwest, check out our Low Fare Calendar.
    You can rent a car at San Francisco International Airport book yours with your flight.
    Yes! Flights from Seattle/Tacoma to San Francisco—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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