Alaska Airlines Flights from San Jose to Seattle

Lowest fares from San Jose to Seattle

Aug 2026
From$217*
Seen: 15 hours ago
Flight Type One Way|Saver
Sep 2026
From$79*
Seen: 15 hours 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 $419
Displaying fares for August-2026
  • SJC–SEA, Aug 16, 2026: From $419
    16

    Su

    AUG

  • SJC–SEA, Aug 17, 2026: From $419
    17

    Mo

  • SJC–SEA, Aug 18, 2026: From $364
    18

    Tu

  • SJC–SEA, Aug 19, 2026: From $419
    19

    We

  • SJC–SEA, Aug 20, 2026: From $364
    20

    Th

  • SJC–SEA, Aug 21, 2026: From $419
    21

    Fr

  • SJC–SEA, Aug 22, 2026: From $329
    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 $319
    25

    Tu

  • SJC–SEA, Aug 26, 2026: From $329
    26

    We

  • SJC–SEA, Aug 27, 2026: From $319
    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 $217
    31

    Mo

  • SJC–SEA, Sep 1, 2026: From $217
    01

    Tu

    SEP

  • SJC–SEA, Sep 2, 2026: From $217
    02

    We

  • SJC–SEA, Sep 3, 2026: From $217
    03

    Th

  • SJC–SEA, Sep 4, 2026: From $267
    04

    Fr

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

    Sa

  • SJC–SEA, Sep 6, 2026: From $149
    06

    Su

  • SJC–SEA, Sep 7, 2026: From $79
    07

    Mo

  • SJC–SEA, Sep 8, 2026: From $79
    08

    Tu

  • SJC–SEA, Sep 9, 2026: From $79
    09

    We

  • SJC–SEA, Sep 10, 2026: From $79
    10

    Th

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

    Fr

  • SJC–SEA, Sep 12, 2026: From $79
    12

    Sa

  • SJC–SEA, Sep 13, 2026: From $149
    13

    Su

  • SJC–SEA, Sep 14, 2026: From $79
    14

    Mo

  • SJC–SEA, Sep 15, 2026: From $79
    15

    Tu

    • 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 12, 2026

    From

    $79

    Seen: 15 hours ago

    San Jose (SJC)Seattle (SEA)One-way
    |
    Saver    		Depart: Sep 16, 2026

    From

    $79

    Seen: 15 hours ago

    San Jose (SJC)Seattle (SEA)One-way
    |
    Saver    		Depart: Sep 29, 2026

    From

    $79

    Seen: 15 hours ago

    San Jose (SJC)Seattle (SEA)One-way
    |
    Saver    		Depart: Oct 7, 2026

    From

    $79

    Seen: 15 hours ago

    San Jose (SJC)Seattle (SEA)One-way
    |
    Saver    		Depart: Oct 13, 2026

    From

    $79

    Seen: 15 hours ago

    San Jose (SJC)Seattle (SEA)One-way
    |
    Saver    		Depart: Oct 31, 2026

    From

    $79

    Seen: 15 hours ago

    San Jose (SJC)Seattle (SEA)One-way
    |
    Saver    		Depart: Nov 4, 2026

    From

    $79

    Seen: 15 hours ago

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

    From

    $79

    Seen: 15 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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