Alaska Airlines Flights from Idaho Falls to Seattle

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Lowest fares from Idaho Falls to Seattle

Jun 2025
From$324*
Seen: 11 hours ago
Flight Type One Way|Saver
$139
$344
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    • Range$139-$344

    *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 Idaho Falls to Seattle.*

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    One-way low-fare flights Idaho Falls to Seattle.*
    From
    To
    Fare Type
    Dates
    Price
    Idaho Falls (IDA)Seattle (SEA)One-way
    |
    Saver    		Depart: Sep 27, 2025

    From

    $99

    Seen: 11 hours ago

    Idaho Falls (IDA)Seattle (SEA)One-way
    |
    Saver    		Depart: Oct 4, 2025

    From

    $99

    Seen: 11 hours ago

    Idaho Falls (IDA)Seattle (SEA)One-way
    |
    Saver    		Depart: Aug 23, 2025

    From

    $99

    Seen: 11 hours ago

    Idaho Falls (IDA)Seattle (SEA)One-way
    |
    Saver    		Depart: Sep 2, 2025

    From

    $99

    Seen: 11 hours ago

    Idaho Falls (IDA)Seattle (SEA)One-way
    |
    Saver    		Depart: Sep 23, 2025

    From

    $99

    Seen: 11 hours ago

    Idaho Falls (IDA)Seattle (SEA)One-way
    |
    Saver    		Depart: Sep 30, 2025

    From

    $99

    Seen: 11 hours ago

    Idaho Falls (IDA)Seattle (SEA)One-way
    |
    Saver    		Depart: Nov 1, 2025

    From

    $99

    Seen: 11 hours ago

    Idaho Falls (IDA)Seattle (SEA)One-way
    |
    Saver    		Depart: Nov 4, 2025

    From

    $99

    Seen: 11 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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