Alaska Airlines Flights from Boise to Seattle

Lowest fares from Boise to Seattle

Sep 2026
From$249*
Seen: 9 hours ago
Flight Type One Way|Saver
Oct 2026
From$89*
Seen: 9 hours ago
Flight Type One Way|Saver
Nov 2026
From$89*
Seen: 9 hours ago
Flight Type One Way|Saver
cmp-daily-histogram-bars-legend-min-price-aria-label $89
cmp-daily-histogram-bars-legend-max-price-aria-label $429
Displaying fares for September-2026
  • BOI–SEA, Sep 10, 2026: From $429
    10

    Th

    SEP

  • BOI–SEA, Sep 11, 2026: From $429
    11

    Fr

  • BOI–SEA, Sep 12, 2026: From $349
    12

    Sa

  • BOI–SEA, Sep 13, 2026: From $349
    13

    Su

  • BOI–SEA, Sep 14, 2026: From $349
    14

    Mo

  • BOI–SEA, Sep 15, 2026: From $349
    15

    Tu

  • BOI–SEA, Sep 16, 2026: From $299
    16

    We

  • BOI–SEA, Sep 17, 2026: From $299
    17

    Th

  • BOI–SEA, Sep 18, 2026: From $299
    18

    Fr

  • BOI–SEA, Sep 19, 2026: From $299
    19

    Sa

  • BOI–SEA, Sep 20, 2026: From $299
    20

    Su

  • BOI–SEA, Sep 21, 2026: From $299
    21

    Mo

  • BOI–SEA, Sep 22, 2026: From $299
    22

    Tu

  • BOI–SEA, Sep 23, 2026: From $249
    23

    We

  • BOI–SEA, Sep 24, 2026: From $249
    24

    Th

  • BOI–SEA, Sep 25, 2026: From $249
    25

    Fr

  • BOI–SEA, Sep 26, 2026: From $249
    26

    Sa

  • BOI–SEA, Sep 27, 2026: From $249
    27

    Su

  • BOI–SEA, Sep 28, 2026: From $249
    28

    Mo

  • BOI–SEA, Sep 29, 2026: From $249
    29

    Tu

  • BOI–SEA, Sep 30, 2026: From $249
    30

    We

  • BOI–SEA, Oct 1, 2026: From $89
    01

    Th

    OCT

  • BOI–SEA, Oct 2, 2026: From $89
    02

    Fr

  • BOI–SEA, Oct 3, 2026: From $89
    03

    Sa

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

    Su

  • BOI–SEA, Oct 5, 2026: From $89
    05

    Mo

  • BOI–SEA, Oct 6, 2026: From $89
    06

    Tu

  • BOI–SEA, Oct 7, 2026: From $89
    07

    We

  • BOI–SEA, Oct 8, 2026: From $202
    08

    Th

  • BOI–SEA, Oct 9, 2026: From $89
    09

    Fr

    • Range$89-$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 Boise to Seattle.*

    $
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    One-way low-fare flights Boise to Seattle.*
    From
    To
    Fare Type
    Dates
    Price
    Boise (BOI)Seattle (SEA)One-way
    |
    Saver    		Depart: Jan 13, 2027

    From

    $89

    Seen: 9 hours ago

    Boise (BOI)Seattle (SEA)One-way
    |
    Saver    		Depart: Jan 24, 2027

    From

    $89

    Seen: 9 hours ago

    Boise (BOI)Seattle (SEA)One-way
    |
    Saver    		Depart: Jan 30, 2027

    From

    $89

    Seen: 9 hours ago

    Boise (BOI)Seattle (SEA)One-way
    |
    Saver    		Depart: Feb 1, 2027

    From

    $89

    Seen: 9 hours ago

    Boise (BOI)Seattle (SEA)One-way
    |
    Saver    		Depart: Mar 7, 2027

    From

    $89

    Seen: 9 hours ago

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

    From

    $89

    Seen: 9 hours ago

    Boise (BOI)Seattle (SEA)One-way
    |
    Saver    		Depart: Mar 3, 2027

    From

    $89

    Seen: 9 hours ago

    Boise (BOI)Seattle (SEA)One-way
    |
    Saver    		Depart: Dec 13, 2026

    From

    $89

    Seen: 9 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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