Flights from Seattle (SEA) to Boise (BOI) on Alaska Airlines

Lowest fares from Seattle to Boise

Sep 2026
From$259*
Seen: 16 hours ago
Flight Type One Way|Saver
Oct 2026
From$124*
Seen: 16 hours ago
Flight Type One Way|Saver
Nov 2026
From$124*
Seen: 16 hours ago
Flight Type One Way|Saver
cmp-daily-histogram-bars-legend-min-price-aria-label $144
cmp-daily-histogram-bars-legend-max-price-aria-label $439
Displaying fares for September-2026
  • SEA–BOI, Sep 14, 2026: From $439
    14

    Mo

    SEP

  • SEA–BOI, Sep 15, 2026: From $359
    15

    Tu

  • SEA–BOI, Sep 16, 2026: From $359
    16

    We

  • SEA–BOI, Sep 17, 2026: From $359
    17

    Th

  • SEA–BOI, Sep 18, 2026: From $359
    18

    Fr

  • SEA–BOI, Sep 19, 2026: From $309
    19

    Sa

  • SEA–BOI, Sep 20, 2026: From $309
    20

    Su

  • SEA–BOI, Sep 21, 2026: From $309
    21

    Mo

  • SEA–BOI, Sep 22, 2026: From $309
    22

    Tu

  • SEA–BOI, Sep 23, 2026: From $309
    23

    We

  • SEA–BOI, Sep 24, 2026: From $309
    24

    Th

  • SEA–BOI, Sep 25, 2026: From $309
    25

    Fr

  • SEA–BOI, Sep 26, 2026: From $259
    26

    Sa

  • SEA–BOI, Sep 27, 2026: From $259
    27

    Su

  • SEA–BOI, Sep 28, 2026: From $259
    28

    Mo

  • SEA–BOI, Sep 29, 2026: From $259
    29

    Tu

  • SEA–BOI, Sep 30, 2026: From $259
    30

    We

  • SEA–BOI, Oct 1, 2026: From $259
    01

    Th

    OCT

  • SEA–BOI, Oct 2, 2026: From $259
    02

    Fr

  • SEA–BOI, Oct 3, 2026: From $214
    03

    Sa

  • SEA–BOI, Oct 4, 2026: From $214
    04

    Su

  • SEA–BOI, Oct 5, 2026: From $214
    05

    Mo

  • SEA–BOI, Oct 6, 2026: From $214
    06

    Tu

  • SEA–BOI, Oct 7, 2026: From $214
    07

    We

  • SEA–BOI, Oct 8, 2026: From $214
    08

    Th

  • SEA–BOI, Oct 9, 2026: From $214
    09

    Fr

  • SEA–BOI, Oct 10, 2026: From $214
    10

    Sa

  • SEA–BOI, Oct 11, 2026: From $214
    11

    Su

  • SEA–BOI, Oct 12, 2026: From $214
    12

    Mo

  • SEA–BOI, Oct 13, 2026: From $144
    13

    Tu

    • Range$144-$439

    *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 Boise.*

    $
    keyboard_arrow_down
    One-way low-fare flights Seattle to Boise.*
    From
    To
    Fare Type
    Dates
    Price
    Seattle (SEA)Boise (BOI)One-way
    |
    Saver    		Depart: Dec 15, 2026

    From

    $124

    Seen: 16 hours ago

    Seattle (SEA)Boise (BOI)One-way
    |
    Saver    		Depart: Jan 12, 2027

    From

    $124

    Seen: 16 hours ago

    Seattle (SEA)Boise (BOI)One-way
    |
    Saver    		Depart: Jan 13, 2027

    From

    $124

    Seen: 16 hours ago

    Seattle (SEA)Boise (BOI)One-way
    |
    Saver    		Depart: Oct 31, 2026

    From

    $124

    Seen: 16 hours ago

    Seattle (SEA)Boise (BOI)One-way
    |
    Saver    		Depart: Nov 3, 2026

    From

    $124

    Seen: 16 hours ago

    Seattle (SEA)Boise (BOI)One-way
    |
    Saver    		Depart: Nov 10, 2026

    From

    $124

    Seen: 16 hours ago

    Seattle (SEA)Boise (BOI)One-way
    |
    Saver    		Depart: Nov 11, 2026

    From

    $124

    Seen: 16 hours ago

    Seattle (SEA)Boise (BOI)One-way
    |
    Saver    		Depart: Jan 9, 2027

    From

    $124

    Seen: 16 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 Boise (BOI)

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

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

    Can I earn points on my flight to Boise?

    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 Boise Airport?

    Yes, you can rent a car at Boise Airport. Check availability and book now

    Where can I find the status of my flight to Boise

    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 Boise?

    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. 

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