Alaska Airlines Flights from San Francisco to Seattle

Lowest fares from San Francisco to Seattle

Aug 2026
From$96*
Seen: 2 hours ago
Flight Type One Way|Saver
Sep 2026
From$79*
Seen: 2 hours ago
Flight Type One Way|Saver
Oct 2026
From$79*
Seen: 2 hours ago
Flight Type One Way|Saver
cmp-daily-histogram-bars-legend-min-price-aria-label $79
cmp-daily-histogram-bars-legend-max-price-aria-label $434
Displaying fares for August-2026
  • SFO–SEA, Aug 8, 2026: From $434
    08

    Sa

    AUG

  • SFO–SEA, Aug 9, 2026: From $359
    09

    Su

  • SFO–SEA, Aug 10, 2026: From $359
    10

    Mo

  • SFO–SEA, Aug 11, 2026: From $359
    11

    Tu

  • SFO–SEA, Aug 12, 2026: From $359
    12

    We

  • SFO–SEA, Aug 13, 2026: From $359
    13

    Th

  • SFO–SEA, Aug 14, 2026: From $277
    14

    Fr

  • SFO–SEA, Aug 15, 2026: From $277
    15

    Sa

  • SFO–SEA, Aug 16, 2026: From $277
    16

    Su

  • SFO–SEA, Aug 17, 2026: From $277
    17

    Mo

  • SFO–SEA, Aug 18, 2026: From $277
    18

    Tu

  • SFO–SEA, Aug 19, 2026: From $277
    19

    We

  • SFO–SEA, Aug 20, 2026: From $269
    20

    Th

  • SFO–SEA, Aug 21, 2026: From $217
    21

    Fr

  • SFO–SEA, Aug 22, 2026: From $217
    22

    Sa

  • SFO–SEA, Aug 23, 2026: From $217
    23

    Su

  • SFO–SEA, Aug 24, 2026: From $217
    24

    Mo

  • SFO–SEA, Aug 25, 2026: From $217
    25

    Tu

  • SFO–SEA, Aug 26, 2026: From $217
    26

    We

  • SFO–SEA, Aug 27, 2026: From $217
    27

    Th

  • SFO–SEA, Aug 28, 2026: From $128
    28

    Fr

  • SFO–SEA, Aug 29, 2026: From $96
    29

    Sa

  • SFO–SEA, Aug 30, 2026: From $149
    30

    Su

  • SFO–SEA, Aug 31, 2026: From $119
    31

    Mo

  • SFO–SEA, Sep 1, 2026: From $96
    01

    Tu

    SEP

  • SFO–SEA, Sep 2, 2026: From $96
    02

    We

  • SFO–SEA, Sep 3, 2026: From $141
    03

    Th

  • SFO–SEA, Sep 4, 2026: From $234
    04

    Fr

  • SFO–SEA, Sep 5, 2026: From $79
    05

    Sa

  • SFO–SEA, Sep 6, 2026: From $79
    06

    Su

  • SFO–SEA, Sep 7, 2026: From $119
    07

    Mo

    • Range$79-$434

    *Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.

    One-way low-fare flights San Francisco to Seattle.*

    $
    keyboard_arrow_down
    One-way low-fare flights San Francisco to Seattle.*
    From
    To
    Fare Type
    Dates
    Price
    San Francisco (SFO)Seattle (SEA)One-way
    |
    Saver    		Depart: Sep 5, 2026

    From

    $79

    Seen: 2 hours ago

    San Francisco (SFO)Seattle (SEA)One-way
    |
    Saver    		Depart: Nov 26, 2026

    From

    $79

    Seen: 2 hours ago

    San Francisco (SFO)Seattle (SEA)One-way
    |
    Saver    		Depart: Sep 6, 2026

    From

    $79

    Seen: 2 hours ago

    San Francisco (SFO)Seattle (SEA)One-way
    |
    Saver    		Depart: Oct 30, 2026

    From

    $79

    Seen: 2 hours ago

    San Francisco (SFO)Seattle (SEA)One-way
    |
    Saver    		Depart: Sep 8, 2026

    From

    $96

    Seen: 2 hours ago

    San Francisco (SFO)Seattle (SEA)One-way
    |
    Saver    		Depart: Sep 12, 2026

    From

    $96

    Seen: 2 hours ago

    San Francisco (SFO)Seattle (SEA)One-way
    |
    Saver    		Depart: Sep 15, 2026

    From

    $96

    Seen: 2 hours ago

    San Francisco (SFO)Seattle (SEA)One-way
    |
    Saver    		Depart: Sep 19, 2026

    From

    $96

    Seen: 2 hours ago

    *Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.

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