Alaska Airlines Flights from Helena to Portland

Lowest fares from Helena to Portland

Sep 2026
From$450*
Seen: 17 hours ago
Flight Type One Way|Saver
Oct 2026
From$233*
Seen: 11 hours ago
Flight Type One Way|Saver
Nov 2026
Try another month to see offers
cmp-daily-histogram-bars-legend-min-price-aria-label $284
Displaying fares for September-2026
  • HLN–PDX: cmp-view-offers-disclaimer. Find Offers
    07

    Mo

    SEP

  • HLN–PDX: cmp-view-offers-disclaimer. Find Offers
    08

    Tu

  • HLN–PDX: cmp-view-offers-disclaimer. Find Offers
    09

    We

  • HLN–PDX: cmp-view-offers-disclaimer. Find Offers
    10

    Th

  • HLN–PDX: cmp-view-offers-disclaimer. Find Offers
    11

    Fr

  • HLN–PDX: cmp-view-offers-disclaimer. Find Offers
    12

    Sa

  • HLN–PDX: cmp-view-offers-disclaimer. Find Offers
    13

    Su

  • HLN–PDX, Sep 14, 2026: From $450
    14

    Mo

  • HLN–PDX: cmp-view-offers-disclaimer. Find Offers
    15

    Tu

  • HLN–PDX: cmp-view-offers-disclaimer. Find Offers
    16

    We

  • HLN–PDX: cmp-view-offers-disclaimer. Find Offers
    17

    Th

  • HLN–PDX: cmp-view-offers-disclaimer. Find Offers
    18

    Fr

  • HLN–PDX: cmp-view-offers-disclaimer. Find Offers
    19

    Sa

  • HLN–PDX: cmp-view-offers-disclaimer. Find Offers
    20

    Su

  • HLN–PDX: cmp-view-offers-disclaimer. Find Offers
    21

    Mo

  • HLN–PDX: cmp-view-offers-disclaimer. Find Offers
    22

    Tu

  • HLN–PDX: cmp-view-offers-disclaimer. Find Offers
    23

    We

  • HLN–PDX: cmp-view-offers-disclaimer. Find Offers
    24

    Th

  • HLN–PDX: cmp-view-offers-disclaimer. Find Offers
    25

    Fr

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

    Sa

  • HLN–PDX: cmp-view-offers-disclaimer. Find Offers
    27

    Su

  • HLN–PDX: cmp-view-offers-disclaimer. Find Offers
    28

    Mo

  • HLN–PDX: cmp-view-offers-disclaimer. Find Offers
    29

    Tu

  • HLN–PDX: cmp-view-offers-disclaimer. Find Offers
    30

    We

  • HLN–PDX: cmp-view-offers-disclaimer. Find Offers
    01

    Th

    OCT

  • HLN–PDX: cmp-view-offers-disclaimer. Find Offers
    02

    Fr

  • HLN–PDX, Oct 3, 2026: From $284
    03

    Sa

  • HLN–PDX: cmp-view-offers-disclaimer. Find Offers
    04

    Su

  • HLN–PDX: cmp-view-offers-disclaimer. Find Offers
    05

    Mo

  • HLN–PDX: cmp-view-offers-disclaimer. Find Offers
    06

    Tu

    • Range$284-$450

    *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 Helena to Portland.*

    $
    keyboard_arrow_down
    One-way low-fare flights Helena to Portland.*
    From
    To
    Fare Type
    Dates
    Price
    Helena (HLN)Portland (PDX)One-way
    |
    Saver    		Depart: Oct 22, 2026

    From

    $233

    Seen: 11 hours ago

    Helena (HLN)Portland (PDX)One-way
    |
    Saver    		Depart: Oct 3, 2026

    From

    $284

    Seen: 5 hours ago

    Helena (HLN)Portland (PDX)One-way
    |
    Saver    		Depart: Sep 14, 2026

    From

    $450

    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.

    Looking for more? See other routes

    Explore Alaska Airlines's Flights to Top-Pick Destinations