Flights from Seattle (SEA) to Helena (HLN) on Alaska Airlines

Lowest fares from Seattle to Helena

Nov 2026
From$254*
Seen: 17 hours ago
Flight Type One Way|Saver
Dec 2026
From$144*
Seen: 17 hours ago
Flight Type One Way|Saver
Jan 2027
From$144*
Seen: 17 hours ago
Flight Type One Way|Saver
cmp-daily-histogram-bars-legend-min-price-aria-label $144
cmp-daily-histogram-bars-legend-max-price-aria-label $800
Displaying fares for November-2026
  • SEA–HLN, Nov 14, 2026: From $429
    14

    Sa

    NOV

  • SEA–HLN, Nov 15, 2026: From $429
    15

    Su

  • SEA–HLN, Nov 16, 2026: From $429
    16

    Mo

  • SEA–HLN, Nov 17, 2026: From $429
    17

    Tu

  • SEA–HLN, Nov 18, 2026: From $429
    18

    We

  • SEA–HLN, Nov 19, 2026: From $349
    19

    Th

  • SEA–HLN, Nov 20, 2026: From $349
    20

    Fr

  • SEA–HLN, Nov 21, 2026: From $349
    21

    Sa

  • SEA–HLN, Nov 22, 2026: From $349
    22

    Su

  • SEA–HLN, Nov 23, 2026: From $349
    23

    Mo

  • SEA–HLN, Nov 24, 2026: From $349
    24

    Tu

  • SEA–HLN, Nov 25, 2026: From $419
    25

    We

  • SEA–HLN: cmp-view-offers-disclaimer. Find Offers
    26

    Th

  • SEA–HLN, Nov 27, 2026: From $254
    27

    Fr

  • SEA–HLN, Nov 28, 2026: From $349
    28

    Sa

  • SEA–HLN, Nov 29, 2026: From $800
    29

    Su

  • SEA–HLN, Nov 30, 2026: From $349
    30

    Mo

  • SEA–HLN, Dec 1, 2026: From $254
    01

    Tu

    DEC

  • SEA–HLN, Dec 2, 2026: From $254
    02

    We

  • SEA–HLN, Dec 3, 2026: From $229
    03

    Th

  • SEA–HLN, Dec 4, 2026: From $229
    04

    Fr

  • SEA–HLN, Dec 5, 2026: From $229
    05

    Sa

  • SEA–HLN, Dec 6, 2026: From $229
    06

    Su

  • SEA–HLN, Dec 7, 2026: From $229
    07

    Mo

  • SEA–HLN, Dec 8, 2026: From $289
    08

    Tu

  • SEA–HLN, Dec 9, 2026: From $229
    09

    We

  • SEA–HLN, Dec 10, 2026: From $229
    10

    Th

  • SEA–HLN, Dec 11, 2026: From $229
    11

    Fr

  • SEA–HLN, Dec 12, 2026: From $144
    12

    Sa

  • SEA–HLN, Dec 13, 2026: From $159
    13

    Su

    • Range$144-$800

    *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 Helena.*

    $
    keyboard_arrow_down
    One-way low-fare flights Seattle to Helena.*
    From
    To
    Fare Type
    Dates
    Price
    Seattle (SEA)Helena (HLN)One-way
    |
    Saver    		Depart: Jan 12, 2027

    From

    $144

    Seen: 17 hours ago

    Seattle (SEA)Helena (HLN)One-way
    |
    Saver    		Depart: Jan 5, 2027

    From

    $144

    Seen: 17 hours ago

    Seattle (SEA)Helena (HLN)One-way
    |
    Saver    		Depart: Jan 23, 2027

    From

    $144

    Seen: 17 hours ago

    Seattle (SEA)Helena (HLN)One-way
    |
    Saver    		Depart: Feb 10, 2027

    From

    $144

    Seen: 17 hours ago

    Seattle (SEA)Helena (HLN)One-way
    |
    Saver    		Depart: Feb 13, 2027

    From

    $144

    Seen: 17 hours ago

    Seattle (SEA)Helena (HLN)One-way
    |
    Saver    		Depart: Feb 20, 2027

    From

    $144

    Seen: 17 hours ago

    Seattle (SEA)Helena (HLN)One-way
    |
    Saver    		Depart: Feb 24, 2027

    From

    $144

    Seen: 17 hours ago

    Seattle (SEA)Helena (HLN)One-way
    |
    Saver    		Depart: Mar 2, 2027

    From

    $144

    Seen: 17 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 Helena (HLN)

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

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

    Can I earn points on my flight to Helena?

    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 Helena Regional Airport?

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

    Where can I find the status of my flight to Helena?

    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 Helena?

    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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