Alaska Airlines Flights from Seattle to Idaho Falls

Lowest fares from Seattle to Idaho Falls

May 2026
From$209*
Seen: 21 hours ago
Flight Type One Way|Saver
Jun 2026
From$184*
Seen: 21 hours ago
Flight Type One Way|Saver
Jul 2026
From$184*
Seen: 21 hours ago
Flight Type One Way|Saver
cmp-daily-histogram-bars-legend-min-price-aria-label $184
cmp-daily-histogram-bars-legend-max-price-aria-label $394
Displaying fares for May-2026
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    • Range$184-$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 Seattle to Idaho Falls.*

    $
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    One-way low-fare flights Seattle to Idaho Falls.*
    From
    To
    Fare Type
    Dates
    Price
    Seattle (SEA)Idaho Falls (IDA)One-way
    |
    Saver    		Depart: Jun 6, 2026

    From

    $184

    Seen: 21 hours ago

    Seattle (SEA)Idaho Falls (IDA)One-way
    |
    Saver    		Depart: Jun 19, 2026

    From

    $184

    Seen: 21 hours ago

    Seattle (SEA)Idaho Falls (IDA)One-way
    |
    Saver    		Depart: Jun 23, 2026

    From

    $184

    Seen: 21 hours ago

    Seattle (SEA)Idaho Falls (IDA)One-way
    |
    Saver    		Depart: Jul 4, 2026

    From

    $184

    Seen: 21 hours ago

    Seattle (SEA)Idaho Falls (IDA)One-way
    |
    Saver    		Depart: Jul 9, 2026

    From

    $184

    Seen: 21 hours ago

    Seattle (SEA)Idaho Falls (IDA)One-way
    |
    Saver    		Depart: Jul 11, 2026

    From

    $184

    Seen: 21 hours ago

    Seattle (SEA)Idaho Falls (IDA)One-way
    |
    Saver    		Depart: Jul 15, 2026

    From

    $184

    Seen: 21 hours ago

    Seattle (SEA)Idaho Falls (IDA)One-way
    |
    Saver    		Depart: Jul 29, 2026

    From

    $184

    Seen: 21 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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