Alaska Airlines Flights from Seattle to Boise

Lowest fares from Seattle to Boise

Aug 2026
From$239*
Seen: 13 hours ago
Flight Type One Way|Saver
Sep 2026
From$114*
Seen: 13 hours ago
Flight Type One Way|Saver
Oct 2026
From$114*
Seen: 13 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 $419
Displaying fares for August-2026
  • SEA–BOI, Aug 12, 2026: From $419
    12

    We

    AUG

  • SEA–BOI, Aug 13, 2026: From $339
    13

    Th

  • SEA–BOI, Aug 14, 2026: From $419
    14

    Fr

  • SEA–BOI, Aug 15, 2026: From $339
    15

    Sa

  • SEA–BOI, Aug 16, 2026: From $339
    16

    Su

  • SEA–BOI, Aug 17, 2026: From $339
    17

    Mo

  • SEA–BOI, Aug 18, 2026: From $419
    18

    Tu

  • SEA–BOI, Aug 19, 2026: From $289
    19

    We

  • SEA–BOI, Aug 20, 2026: From $289
    20

    Th

  • SEA–BOI, Aug 21, 2026: From $289
    21

    Fr

  • SEA–BOI, Aug 22, 2026: From $289
    22

    Sa

  • SEA–BOI, Aug 23, 2026: From $289
    23

    Su

  • SEA–BOI, Aug 24, 2026: From $289
    24

    Mo

  • SEA–BOI, Aug 25, 2026: From $289
    25

    Tu

  • SEA–BOI, Aug 26, 2026: From $239
    26

    We

  • SEA–BOI, Aug 27, 2026: From $239
    27

    Th

  • SEA–BOI, Aug 28, 2026: From $239
    28

    Fr

  • SEA–BOI, Aug 29, 2026: From $239
    29

    Sa

  • SEA–BOI, Aug 30, 2026: From $239
    30

    Su

  • SEA–BOI, Aug 31, 2026: From $239
    31

    Mo

  • SEA–BOI, Sep 1, 2026: From $194
    01

    Tu

    SEP

  • SEA–BOI, Sep 2, 2026: From $194
    02

    We

  • SEA–BOI, Sep 3, 2026: From $194
    03

    Th

  • SEA–BOI, Sep 4, 2026: From $194
    04

    Fr

  • SEA–BOI, Sep 5, 2026: From $194
    05

    Sa

  • SEA–BOI, Sep 6, 2026: From $194
    06

    Su

  • SEA–BOI, Sep 7, 2026: From $194
    07

    Mo

  • SEA–BOI, Sep 8, 2026: From $194
    08

    Tu

  • SEA–BOI, Sep 9, 2026: From $194
    09

    We

  • SEA–BOI, Sep 10, 2026: From $194
    10

    Th

  • SEA–BOI, Sep 11, 2026: From $144
    11

    Fr

    • Range$144-$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 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: Nov 11, 2026

    From

    $114

    Seen: 13 hours ago

    Seattle (SEA)Boise (BOI)One-way
    |
    Saver    		Depart: Dec 2, 2026

    From

    $114

    Seen: 13 hours ago

    Seattle (SEA)Boise (BOI)One-way
    |
    Saver    		Depart: Dec 5, 2026

    From

    $114

    Seen: 13 hours ago

    Seattle (SEA)Boise (BOI)One-way
    |
    Saver    		Depart: Dec 9, 2026

    From

    $114

    Seen: 13 hours ago

    Seattle (SEA)Boise (BOI)One-way
    |
    Saver    		Depart: Dec 15, 2026

    From

    $114

    Seen: 13 hours ago

    Seattle (SEA)Boise (BOI)One-way
    |
    Saver    		Depart: Sep 15, 2026

    From

    $114

    Seen: 13 hours ago

    Seattle (SEA)Boise (BOI)One-way
    |
    Saver    		Depart: Sep 23, 2026

    From

    $114

    Seen: 13 hours ago

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

    From

    $114

    Seen: 13 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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