Southwest® flights from San Francisco to Seattle/Tacoma from $76

Promo Code

Low fares from San Francisco to Seattle/Tacoma

$

San Francisco (SFO)to

Seattle/Tacoma (SEA)
Depart: 11/04/2026

One-way

Basic

From
$76
Seen: 12 hrs ago

San Francisco (SFO)to

Seattle/Tacoma (SEA)
Depart: 10/13/2026

One-way

Basic

From
$76
Seen: 7 hrs ago

San Francisco (SFO)to

Seattle/Tacoma (SEA)
Depart: 10/01/2026

One-way

Basic

From
$76
Seen: 1 hour ago

San Francisco (SFO)to

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

One-way

Basic

From
$76
Seen: 2 hrs ago

San Francisco (SFO)to

Seattle/Tacoma (SEA)
Depart: 10/06/2026

One-way

Basic

From
$76
Seen: 19 hrs ago

San Francisco (SFO)to

Seattle/Tacoma (SEA)
Depart: 10/24/2026

One-way

Basic

From
$76
Seen: 23 hrs ago

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Explore flights from San Francisco to Seattle/Tacoma

Sep 2026
From$89*
Seen: 14 hrs ago
One Way/Basic
Oct 2026
From$76*
Seen: 23 hrs ago
One Way/Basic
Nov 2026
From$76*
Seen: 4 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $76
cmp-daily-histogram-bars-legend-max-price-aria-label $389
Displaying fares for September-2026
  • SFO–SEA, 09/11/2026: From $379
    11

    Fri

    SEP

  • SFO–SEA, 09/12/2026: From $379
    12

    Sat

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

    Sun

  • SFO–SEA, 09/14/2026: From $379
    14

    Mon

  • SFO–SEA: cmp-view-offers-disclaimer. Find Offers
    15

    Tue

  • SFO–SEA, 09/16/2026: From $389
    16

    Wed

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

    Thu

  • SFO–SEA, 09/18/2026: From $297
    18

    Fri

  • SFO–SEA, 09/19/2026: From $297
    19

    Sat

  • SFO–SEA, 09/20/2026: From $297
    20

    Sun

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

    Mon

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

    Tue

  • SFO–SEA, 09/23/2026: From $227
    23

    Wed

  • SFO–SEA, 09/24/2026: From $227
    24

    Thu

  • SFO–SEA, 09/25/2026: From $227
    25

    Fri

  • SFO–SEA, 09/26/2026: From $227
    26

    Sat

  • SFO–SEA, 09/27/2026: From $227
    27

    Sun

  • SFO–SEA, 09/28/2026: From $227
    28

    Mon

  • SFO–SEA, 09/29/2026: From $227
    29

    Tue

  • SFO–SEA, 09/30/2026: From $89
    30

    Wed

  • SFO–SEA, 10/01/2026: From $76
    01

    Thu

    OCT

  • SFO–SEA, 10/02/2026: From $169
    02

    Fri

  • SFO–SEA, 10/03/2026: From $164
    03

    Sat

  • SFO–SEA, 10/04/2026: From $177
    04

    Sun

  • SFO–SEA, 10/05/2026: From $76
    05

    Mon

  • SFO–SEA, 10/06/2026: From $76
    06

    Tue

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

    Wed

  • SFO–SEA, 10/08/2026: From $169
    08

    Thu

  • SFO–SEA, 10/09/2026: From $227
    09

    Fri

  • SFO–SEA, 10/10/2026: From $81
    10

    Sat

    • Range$76-$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:
    San Francisco International Airport
    Arriving at:
    Seattle/Tacoma International Airport
    Distance:
    679 miles

    Route Information

    80† 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 80 weekly flights from San Francisco to Seattle/Tacoma on Southwest Airlines.
    To find the lowest fares by day and time to fly San Francisco 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 Francisco 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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