Alaska Airlines Flights from Boise to Seattle

Lowest fares from Boise to Seattle

Aug 2026
From$194*
Seen: 18 hours ago
Flight Type One Way|Saver
Sep 2026
From$114*
Seen: 18 hours ago
Flight Type One Way|Saver
Oct 2026
From$114*
Seen: 18 hours ago
Flight Type One Way|Saver
cmp-daily-histogram-bars-legend-min-price-aria-label $134
cmp-daily-histogram-bars-legend-max-price-aria-label $419
Displaying fares for August-2026
  • BOI–SEA, Aug 9, 2026: From $419
    09

    Su

    AUG

  • BOI–SEA, Aug 10, 2026: From $419
    10

    Mo

  • BOI–SEA, Aug 11, 2026: From $419
    11

    Tu

  • BOI–SEA, Aug 12, 2026: From $419
    12

    We

  • BOI–SEA, Aug 13, 2026: From $419
    13

    Th

  • BOI–SEA, Aug 14, 2026: From $339
    14

    Fr

  • BOI–SEA, Aug 15, 2026: From $289
    15

    Sa

  • BOI–SEA, Aug 16, 2026: From $289
    16

    Su

  • BOI–SEA, Aug 17, 2026: From $289
    17

    Mo

  • BOI–SEA, Aug 18, 2026: From $289
    18

    Tu

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

    We

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

    Th

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

    Fr

  • BOI–SEA, Aug 22, 2026: From $239
    22

    Sa

  • BOI–SEA, Aug 23, 2026: From $239
    23

    Su

  • BOI–SEA, Aug 24, 2026: From $239
    24

    Mo

  • BOI–SEA, Aug 25, 2026: From $239
    25

    Tu

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

    We

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

    Th

  • BOI–SEA, Aug 28, 2026: From $194
    28

    Fr

  • BOI–SEA, Aug 29, 2026: From $194
    29

    Sa

  • BOI–SEA, Aug 30, 2026: From $194
    30

    Su

  • BOI–SEA, Aug 31, 2026: From $194
    31

    Mo

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

    Tu

    SEP

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

    We

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

    Th

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

    Fr

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

    Sa

  • BOI–SEA, Sep 6, 2026: From $177
    06

    Su

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

    Mo

  • BOI–SEA, Sep 8, 2026: From $134
    08

    Tu

    • Range$134-$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 Boise to Seattle.*

    $
    keyboard_arrow_down
    One-way low-fare flights Boise to Seattle.*
    From
    To
    Fare Type
    Dates
    Price
    Boise (BOI)Seattle (SEA)One-way
    |
    Saver    		Depart: Nov 7, 2026

    From

    $114

    Seen: 18 hours ago

    Boise (BOI)Seattle (SEA)One-way
    |
    Saver    		Depart: Nov 18, 2026

    From

    $114

    Seen: 18 hours ago

    Boise (BOI)Seattle (SEA)One-way
    |
    Saver    		Depart: Sep 12, 2026

    From

    $114

    Seen: 18 hours ago

    Boise (BOI)Seattle (SEA)One-way
    |
    Saver    		Depart: Sep 29, 2026

    From

    $114

    Seen: 18 hours ago

    Boise (BOI)Seattle (SEA)One-way
    |
    Saver    		Depart: Sep 30, 2026

    From

    $114

    Seen: 18 hours ago

    Boise (BOI)Seattle (SEA)One-way
    |
    Saver    		Depart: Oct 20, 2026

    From

    $114

    Seen: 18 hours ago

    Boise (BOI)Seattle (SEA)One-way
    |
    Saver    		Depart: Oct 21, 2026

    From

    $114

    Seen: 18 hours ago

    Boise (BOI)Seattle (SEA)One-way
    |
    Saver    		Depart: Oct 24, 2026

    From

    $114

    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.

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