Flights from San Francisco (SFO) to Seattle (SEA) on Alaska Airlines

Lowest fares from San Francisco to Seattle

Nov 2026
From$172*
Seen: 18 hours ago
Flight Type One Way|Saver
Dec 2026
From$80*
Seen: 18 hours ago
Flight Type One Way|Saver
Jan 2027
From$80*
Seen: 18 hours ago
Flight Type One Way|Saver
cmp-daily-histogram-bars-legend-min-price-aria-label $80
cmp-daily-histogram-bars-legend-max-price-aria-label $394
Displaying fares for November-2026
  • SFO–SEA, Nov 11, 2026: From $377
    11

    We

    NOV

  • SFO–SEA, Nov 12, 2026: From $394
    12

    Th

  • SFO–SEA, Nov 13, 2026: From $394
    13

    Fr

  • SFO–SEA, Nov 14, 2026: From $377
    14

    Sa

  • SFO–SEA, Nov 15, 2026: From $394
    15

    Su

  • SFO–SEA, Nov 16, 2026: From $312
    16

    Mo

  • SFO–SEA, Nov 17, 2026: From $312
    17

    Tu

  • SFO–SEA, Nov 18, 2026: From $312
    18

    We

  • SFO–SEA, Nov 19, 2026: From $312
    19

    Th

  • SFO–SEA, Nov 20, 2026: From $374
    20

    Fr

  • SFO–SEA, Nov 21, 2026: From $344
    21

    Sa

  • SFO–SEA, Nov 22, 2026: From $312
    22

    Su

  • SFO–SEA, Nov 23, 2026: From $252
    23

    Mo

  • SFO–SEA, Nov 24, 2026: From $252
    24

    Tu

  • SFO–SEA, Nov 25, 2026: From $252
    25

    We

  • SFO–SEA, Nov 26, 2026: From $252
    26

    Th

  • SFO–SEA, Nov 27, 2026: From $252
    27

    Fr

  • SFO–SEA, Nov 28, 2026: From $252
    28

    Sa

  • SFO–SEA, Nov 29, 2026: From $302
    29

    Su

  • SFO–SEA, Nov 30, 2026: From $172
    30

    Mo

  • SFO–SEA, Dec 1, 2026: From $80
    01

    Tu

    DEC

  • SFO–SEA, Dec 2, 2026: From $80
    02

    We

  • SFO–SEA, Dec 3, 2026: From $80
    03

    Th

  • SFO–SEA, Dec 4, 2026: From $105
    04

    Fr

  • SFO–SEA, Dec 5, 2026: From $80
    05

    Sa

  • SFO–SEA, Dec 6, 2026: From $174
    06

    Su

  • SFO–SEA, Dec 7, 2026: From $80
    07

    Mo

  • SFO–SEA, Dec 8, 2026: From $80
    08

    Tu

  • SFO–SEA, Dec 9, 2026: From $80
    09

    We

  • SFO–SEA, Dec 10, 2026: From $80
    10

    Th

    • Range$80-$394

    *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: Dec 7, 2026

    From

    $80

    Seen: 18 hours ago

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

    From

    $80

    Seen: 18 hours ago

    San Francisco (SFO)Seattle (SEA)One-way
    |
    Saver    		Depart: Dec 14, 2026

    From

    $80

    Seen: 18 hours ago

    San Francisco (SFO)Seattle (SEA)One-way
    |
    Saver    		Depart: Jan 13, 2027

    From

    $80

    Seen: 18 hours ago

    San Francisco (SFO)Seattle (SEA)One-way
    |
    Saver    		Depart: Jan 21, 2027

    From

    $80

    Seen: 18 hours ago

    San Francisco (SFO)Seattle (SEA)One-way
    |
    Saver    		Depart: Jan 30, 2027

    From

    $80

    Seen: 18 hours ago

    San Francisco (SFO)Seattle (SEA)One-way
    |
    Saver    		Depart: Feb 3, 2027

    From

    $80

    Seen: 18 hours ago

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

    From

    $80

    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 San Francisco (SFO) to Seattle (SEA)

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

    Want to find the lowest fares by day and time flying from San Francisco to Seattle on Alaska Airlines or Hawaiian Airlines? Check out our flight search widget.

    Can I earn points on my flight to Seattle?

    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 Seattle/Tacoma International Airport?

    Yes, you can rent a car at Seattle/Tacoma International Airport. Check availability and book now

    Where can I find the status of my flight to Seattle?

    You can check the status of your upcoming Alaska Airlines flight 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 Seattle?

    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. 

    Looking for more? See other routes

    Explore Alaska Airlines's Flights to Top-Pick Destinations