Alaska Airlines Flights from San Jose to Seattle

Lowest fares from San Jose to Seattle

Aug 2026
From$136*
Seen: 12 hours ago
Flight Type One Way|Saver
Sep 2026
From$79*
Seen: 13 minutes ago
Flight Type One Way|Saver
Oct 2026
From$79*
Seen: 12 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 $419
Displaying fares for August-2026
  • SJC–SEA, Aug 12, 2026: From $419
    12

    We

    AUG

  • SJC–SEA, Aug 13, 2026: From $419
    13

    Th

  • SJC–SEA, Aug 14, 2026: From $364
    14

    Fr

  • SJC–SEA, Aug 15, 2026: From $419
    15

    Sa

  • SJC–SEA, Aug 16, 2026: From $364
    16

    Su

  • SJC–SEA, Aug 17, 2026: From $364
    17

    Mo

  • SJC–SEA, Aug 18, 2026: From $319
    18

    Tu

  • SJC–SEA, Aug 19, 2026: From $329
    19

    We

  • SJC–SEA, Aug 20, 2026: From $329
    20

    Th

  • SJC–SEA, Aug 21, 2026: From $329
    21

    Fr

  • SJC–SEA, Aug 22, 2026: From $319
    22

    Sa

  • SJC–SEA, Aug 23, 2026: From $329
    23

    Su

  • SJC–SEA, Aug 24, 2026: From $319
    24

    Mo

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

    Tu

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

    We

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

    Th

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

    Fr

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

    Sa

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

    Su

  • SJC–SEA, Aug 31, 2026: From $136
    31

    Mo

  • SJC–SEA, Sep 1, 2026: From $136
    01

    Tu

    SEP

  • SJC–SEA, Sep 2, 2026: From $95
    02

    We

  • SJC–SEA, Sep 3, 2026: From $159
    03

    Th

  • SJC–SEA, Sep 4, 2026: From $244
    04

    Fr

  • SJC–SEA, Sep 5, 2026: From $159
    05

    Sa

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

    Su

  • SJC–SEA, Sep 7, 2026: From $95
    07

    Mo

  • SJC–SEA, Sep 8, 2026: From $95
    08

    Tu

  • SJC–SEA, Sep 9, 2026: From $95
    09

    We

  • SJC–SEA, Sep 10, 2026: From $95
    10

    Th

  • SJC–SEA, Sep 11, 2026: From $119
    11

    Fr

    • Range$79-$419

    *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 Jose to Seattle.*

    $
    keyboard_arrow_down
    One-way low-fare flights San Jose to Seattle.*
    From
    To
    Fare Type
    Dates
    Price
    San Jose (SJC)Seattle (SEA)One-way
    |
    Saver    		Depart: Sep 6, 2026

    From

    $79

    Seen: 13 minutes ago

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

    From

    $79

    Seen: 12 hours ago

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

    From

    $79

    Seen: 12 hours ago

    San Jose (SJC)Seattle (SEA)One-way
    |
    Saver    		Depart: Jan 20, 2027

    From

    $95

    Seen: 12 hours ago

    San Jose (SJC)Seattle (SEA)One-way
    |
    Saver    		Depart: Feb 4, 2027

    From

    $95

    Seen: 12 hours ago

    San Jose (SJC)Seattle (SEA)One-way
    |
    Saver    		Depart: Nov 11, 2026

    From

    $95

    Seen: 12 hours ago

    San Jose (SJC)Seattle (SEA)One-way
    |
    Saver    		Depart: Dec 2, 2026

    From

    $95

    Seen: 12 hours ago

    San Jose (SJC)Seattle (SEA)One-way
    |
    Saver    		Depart: Dec 10, 2026

    From

    $95

    Seen: 12 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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