Flights from Seattle (SEA) to Idaho Falls (IDA) on Alaska Airlines

Lowest fares from Seattle to Idaho Falls

Nov 2026
From$249*
Seen: 18 hours ago
Flight Type One Way|Saver
Dec 2026
From$164*
Seen: 18 hours ago
Flight Type One Way|Saver
Jan 2027
From$184*
Seen: 18 hours ago
Flight Type One Way|Saver
cmp-daily-histogram-bars-legend-min-price-aria-label $164
cmp-daily-histogram-bars-legend-max-price-aria-label $499
Displaying fares for November-2026
  • SEA–IDA, Nov 11, 2026: From $374
    11

    We

    NOV

  • SEA–IDA, Nov 12, 2026: From $374
    12

    Th

  • SEA–IDA, Nov 13, 2026: From $374
    13

    Fr

  • SEA–IDA, Nov 14, 2026: From $374
    14

    Sa

  • SEA–IDA, Nov 15, 2026: From $374
    15

    Su

  • SEA–IDA, Nov 16, 2026: From $339
    16

    Mo

  • SEA–IDA, Nov 17, 2026: From $339
    17

    Tu

  • SEA–IDA, Nov 18, 2026: From $339
    18

    We

  • SEA–IDA, Nov 19, 2026: From $339
    19

    Th

  • SEA–IDA, Nov 20, 2026: From $339
    20

    Fr

  • SEA–IDA, Nov 21, 2026: From $339
    21

    Sa

  • SEA–IDA, Nov 22, 2026: From $339
    22

    Su

  • SEA–IDA, Nov 23, 2026: From $249
    23

    Mo

  • SEA–IDA, Nov 24, 2026: From $259
    24

    Tu

  • SEA–IDA, Nov 25, 2026: From $339
    25

    We

  • SEA–IDA, Nov 26, 2026: From $249
    26

    Th

  • SEA–IDA, Nov 27, 2026: From $249
    27

    Fr

  • SEA–IDA, Nov 28, 2026: From $374
    28

    Sa

  • SEA–IDA, Nov 29, 2026: From $499
    29

    Su

  • SEA–IDA, Nov 30, 2026: From $249
    30

    Mo

  • SEA–IDA, Dec 1, 2026: From $224
    01

    Tu

    DEC

  • SEA–IDA, Dec 2, 2026: From $224
    02

    We

  • SEA–IDA, Dec 3, 2026: From $224
    03

    Th

  • SEA–IDA, Dec 4, 2026: From $224
    04

    Fr

  • SEA–IDA, Dec 5, 2026: From $224
    05

    Sa

  • SEA–IDA, Dec 6, 2026: From $224
    06

    Su

  • SEA–IDA, Dec 7, 2026: From $224
    07

    Mo

  • SEA–IDA, Dec 8, 2026: From $234
    08

    Tu

  • SEA–IDA, Dec 9, 2026: From $164
    09

    We

  • SEA–IDA, Dec 10, 2026: From $184
    10

    Th

    • Range$164-$499

    *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.*

    $
    keyboard_arrow_down
    One-way low-fare flights Seattle to Idaho Falls.*
    From
    To
    Fare Type
    Dates
    Price
    Seattle (SEA)Idaho Falls (IDA)One-way
    |
    Saver    		Depart: Dec 9, 2026

    From

    $164

    Seen: 18 hours ago

    Seattle (SEA)Idaho Falls (IDA)One-way
    |
    Saver    		Depart: Dec 10, 2026

    From

    $184

    Seen: 18 hours ago

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

    From

    $184

    Seen: 18 hours ago

    Seattle (SEA)Idaho Falls (IDA)One-way
    |
    Saver    		Depart: Dec 12, 2026

    From

    $184

    Seen: 18 hours ago

    Seattle (SEA)Idaho Falls (IDA)One-way
    |
    Saver    		Depart: Jan 16, 2027

    From

    $184

    Seen: 18 hours ago

    Seattle (SEA)Idaho Falls (IDA)One-way
    |
    Saver    		Depart: Jan 20, 2027

    From

    $184

    Seen: 18 hours ago

    Seattle (SEA)Idaho Falls (IDA)One-way
    |
    Saver    		Depart: Jan 23, 2027

    From

    $184

    Seen: 18 hours ago

    Seattle (SEA)Idaho Falls (IDA)One-way
    |
    Saver    		Depart: Feb 2, 2027

    From

    $184

    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.

    Frequently Asked Questions on flights from Seattle (SEA) to Idaho Falls (IDA)

    When is the best time to book a flight from Seattle to Idaho Falls?

    Want to find the lowest fares by day and time flying from Seattle to Idaho Falls on Alaska Airlines or Hawaiian Airlines? Check out our flight search widget.

    Can I earn points on my flight to Idaho Falls?

    Yes, with Atmosâ„¢ Rewards you can earn points on flights to 1000+ destinations worldwide through the growing network of Alaska and Hawaiian Airlines. Not an Atmosâ„¢ Rewards member yet? Learn more and join today.

    Can I rent a car when I arrive at Idaho Falls Regional Airport?

    Yes, you can rent a car at Idaho Falls Regional Airport. Check availability and book now

    Where can I find the status of my flight to Idaho Falls?

    You can check the status of your upcoming Alaska Airlines flight on our flight schedule page.

    Where can I find answers to questions about flying with Alaska Airlines?

    Visit the Alaska Airlines Help Center to quickly browse our help pages by category to find the information you need.

    Can I change or cancel my Alaska Airlines flight to Idaho Falls?

    Yes, you can review, modify, or cancel a reservation from our Manage Your Reservation tool. You can learn more about our policy for changing or cancelling a reservation here. 

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