Alaska Airlines Flights from Seattle to San Francisco

Lowest fares from Seattle to San Francisco

Aug 2026
From$137*
Seen: 15 hours ago
Flight Type One Way|Saver
Sep 2026
From$79*
Seen: 53 minutes ago
Flight Type One Way|Saver
Oct 2026
From$79*
Seen: 15 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
  • SEA–SFO, Aug 11, 2026: From $434
    11

    Tu

    AUG

  • SEA–SFO, Aug 12, 2026: From $434
    12

    We

  • SEA–SFO, Aug 13, 2026: From $434
    13

    Th

  • SEA–SFO, Aug 14, 2026: From $434
    14

    Fr

  • SEA–SFO, Aug 15, 2026: From $434
    15

    Sa

  • SEA–SFO, Aug 16, 2026: From $273
    16

    Su

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

    Mo

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

    Tu

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

    We

  • SEA–SFO, Aug 20, 2026: From $277
    20

    Th

  • SEA–SFO, Aug 21, 2026: From $277
    21

    Fr

  • SEA–SFO, Aug 22, 2026: From $277
    22

    Sa

  • SEA–SFO, Aug 23, 2026: From $277
    23

    Su

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

    Mo

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

    Tu

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

    We

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

    Th

  • SEA–SFO, Aug 28, 2026: From $217
    28

    Fr

  • SEA–SFO, Aug 29, 2026: From $217
    29

    Sa

  • SEA–SFO, Aug 30, 2026: From $217
    30

    Su

  • SEA–SFO, Aug 31, 2026: From $137
    31

    Mo

  • SEA–SFO, Sep 1, 2026: From $137
    01

    Tu

    SEP

  • SEA–SFO, Sep 2, 2026: From $137
    02

    We

  • SEA–SFO, Sep 3, 2026: From $137
    03

    Th

  • SEA–SFO, Sep 4, 2026: From $103
    04

    Fr

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

    Sa

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

    Su

  • SEA–SFO, Sep 7, 2026: From $209
    07

    Mo

  • SEA–SFO, Sep 8, 2026: From $177
    08

    Tu

  • SEA–SFO, Sep 9, 2026: From $99
    09

    We

  • SEA–SFO, Sep 10, 2026: From $104
    10

    Th

    • 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 Seattle to San Francisco.*

    $
    keyboard_arrow_down
    One-way low-fare flights Seattle to San Francisco.*
    From
    To
    Fare Type
    Dates
    Price
    Seattle (SEA)San Francisco (SFO)One-way
    |
    Saver    		Depart: Oct 30, 2026

    From

    $79

    Seen: 15 hours ago

    Seattle (SEA)San Francisco (SFO)One-way
    |
    Saver    		Depart: Sep 11, 2026

    From

    $79

    Seen: 4 hours ago

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

    From

    $79

    Seen: 17 minutes ago

    Seattle (SEA)San Francisco (SFO)One-way
    |
    Saver    		Depart: Sep 5, 2026

    From

    $79

    Seen: 53 minutes ago

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

    From

    $88

    Seen: 1 hour ago

    Seattle (SEA)San Francisco (SFO)One-way
    |
    Saver    		Depart: Nov 10, 2026

    From

    $88

    Seen: 30 minutes ago

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

    From

    $88

    Seen: 5 hours ago

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

    From

    $88

    Seen: 5 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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