Flights from Seattle (SEA) to San Jose (SJC) on Alaska Airlines

Lowest fares from Seattle to San Jose

Sep 2026
From$237*
Seen: 18 hours ago
Flight Type One Way|Saver
Oct 2026
From$149*
Seen: 18 hours ago
Flight Type One Way|Saver
Nov 2026
From$149*
Seen: 18 hours ago
Flight Type One Way|Saver
cmp-daily-histogram-bars-legend-min-price-aria-label $159
cmp-daily-histogram-bars-legend-max-price-aria-label $429
Displaying fares for September-2026
  • SEA–SJC, Sep 13, 2026: From $429
    13

    Su

    SEP

  • SEA–SJC, Sep 14, 2026: From $384
    14

    Mo

  • SEA–SJC, Sep 15, 2026: From $429
    15

    Tu

  • SEA–SJC, Sep 16, 2026: From $429
    16

    We

  • SEA–SJC, Sep 17, 2026: From $429
    17

    Th

  • SEA–SJC, Sep 18, 2026: From $429
    18

    Fr

  • SEA–SJC, Sep 19, 2026: From $339
    19

    Sa

  • SEA–SJC, Sep 20, 2026: From $339
    20

    Su

  • SEA–SJC, Sep 21, 2026: From $339
    21

    Mo

  • SEA–SJC, Sep 22, 2026: From $329
    22

    Tu

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

    We

  • SEA–SJC, Sep 24, 2026: From $339
    24

    Th

  • SEA–SJC, Sep 25, 2026: From $237
    25

    Fr

  • SEA–SJC, Sep 26, 2026: From $237
    26

    Sa

  • SEA–SJC, Sep 27, 2026: From $237
    27

    Su

  • SEA–SJC, Sep 28, 2026: From $237
    28

    Mo

  • SEA–SJC, Sep 29, 2026: From $237
    29

    Tu

  • SEA–SJC, Sep 30, 2026: From $237
    30

    We

  • SEA–SJC, Oct 1, 2026: From $237
    01

    Th

    OCT

  • SEA–SJC, Oct 2, 2026: From $159
    02

    Fr

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

    Sa

  • SEA–SJC, Oct 4, 2026: From $159
    04

    Su

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

    Mo

  • SEA–SJC, Oct 6, 2026: From $159
    06

    Tu

  • SEA–SJC, Oct 7, 2026: From $159
    07

    We

  • SEA–SJC, Oct 8, 2026: From $159
    08

    Th

  • SEA–SJC, Oct 9, 2026: From $159
    09

    Fr

  • SEA–SJC, Oct 10, 2026: From $159
    10

    Sa

  • SEA–SJC, Oct 11, 2026: From $189
    11

    Su

  • SEA–SJC, Oct 12, 2026: From $283
    12

    Mo

    • Range$159-$429

    *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 Jose.*

    $
    keyboard_arrow_down
    One-way low-fare flights Seattle to San Jose.*
    From
    To
    Fare Type
    Dates
    Price
    Seattle (SEA)San Jose (SJC)One-way
    |
    Saver    		Depart: Feb 2, 2027

    From

    $149

    Seen: 18 hours ago

    Seattle (SEA)San Jose (SJC)One-way
    |
    Saver    		Depart: Feb 9, 2027

    From

    $149

    Seen: 18 hours ago

    Seattle (SEA)San Jose (SJC)One-way
    |
    Saver    		Depart: Mar 3, 2027

    From

    $149

    Seen: 18 hours ago

    Seattle (SEA)San Jose (SJC)One-way
    |
    Saver    		Depart: Oct 17, 2026

    From

    $149

    Seen: 18 hours ago

    Seattle (SEA)San Jose (SJC)One-way
    |
    Saver    		Depart: Nov 3, 2026

    From

    $149

    Seen: 18 hours ago

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

    From

    $149

    Seen: 18 hours ago

    Seattle (SEA)San Jose (SJC)One-way
    |
    Saver    		Depart: Nov 14, 2026

    From

    $149

    Seen: 18 hours ago

    Seattle (SEA)San Jose (SJC)One-way
    |
    Saver    		Depart: Nov 17, 2026

    From

    $149

    Seen: 18 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.

    Frequently Asked Questions on flights from Seattle (SEA) to San Jose (SJC)

    When is the best time to book a flight from Seattle to San Jose?

    Want to find the lowest fares by day and time flying from Seattle to San Jose on Alaska Airlines or Hawaiian Airlines? Check out our flight search widget.Frequently Asked Questions on flights from Seattle (SEA) to San Jose (SJC)

    Can I earn points on my flight to San Jose?

    Yes, with Atmosâ„¢ Rewards you can earn points on flights to 1000+ destinations worldwide through the growing network of Alaska and Hawaiian Airlines. Not an Atmosâ„¢ Rewards member yet? Learn more and join today.

    Can I rent a car when I arrive at Norman Y. Mineta San José International Airport?

    Yes, you can rent a car at Norman Y. Mineta San José International Airport. Check availability and book now

    Where can I find the status of my flight to San Jose

    You can check the status of your upcoming Alaska Airlines on our flight schedule page.

    Where can I find answers to questions about flying with Alaska Airlines?

    Visit the Alaska Airlines Help Center to quickly browse our help pages by category to find the information you need.

    Can I change or cancel my Alaska Airlines flight to San Jose?

    Yes, you can review, modify, or cancel a reservation from our Manage Your Reservation tool. You can learn more about our policy for changing or cancelling a reservation here. 

    Explore Alaska Airlines's Flights to Top-Pick Destinations