Alaska Airlines Flights from Idaho Falls to Seattle

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Lowest fares from Idaho Falls to Seattle

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: Aug 26, 2025

From

$109

Seen: 16 hours ago

Idaho Falls (IDA)Seattle (SEA)One-way
|
Saver
Depart: Sep 24, 2025

From

$109

Seen: 16 hours ago

Idaho Falls (IDA)Seattle (SEA)One-way
|
Saver
Depart: Sep 27, 2025

From

$109

Seen: 16 hours ago

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

From

$109

Seen: 16 hours ago

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

From

$109

Seen: 16 hours ago

Idaho Falls (IDA)Seattle (SEA)One-way
|
Saver
Depart: Oct 8, 2025

From

$109

Seen: 16 hours ago

Idaho Falls (IDA)Seattle (SEA)One-way
|
Saver
Depart: Oct 11, 2025

From

$109

Seen: 16 hours ago

Idaho Falls (IDA)Seattle (SEA)One-way
|
Saver
Depart: Oct 21, 2025

From

$109

Seen: 16 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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