Alaska Airlines Flights from Portland to Billings

Lowest fares from Portland to Billings

Sep 2026
From$219*
Seen: 6 hours ago
Flight Type One Way|Saver
Oct 2026
From$134*
Seen: 6 hours ago
Flight Type One Way|Saver
Nov 2026
From$134*
Seen: 6 hours ago
Flight Type One Way|Saver
cmp-daily-histogram-bars-legend-min-price-aria-label $154
cmp-daily-histogram-bars-legend-max-price-aria-label $434
Displaying fares for September-2026
  • PDX–BIL, Sep 8, 2026: From $409
    08

    Tu

    SEP

  • PDX–BIL, Sep 9, 2026: From $399
    09

    We

  • PDX–BIL, Sep 10, 2026: From $409
    10

    Th

  • PDX–BIL, Sep 11, 2026: From $409
    11

    Fr

  • PDX–BIL, Sep 12, 2026: From $399
    12

    Sa

  • PDX–BIL, Sep 13, 2026: From $399
    13

    Su

  • PDX–BIL, Sep 14, 2026: From $334
    14

    Mo

  • PDX–BIL, Sep 15, 2026: From $334
    15

    Tu

  • PDX–BIL, Sep 16, 2026: From $334
    16

    We

  • PDX–BIL, Sep 17, 2026: From $336
    17

    Th

  • PDX–BIL, Sep 18, 2026: From $334
    18

    Fr

  • PDX–BIL, Sep 19, 2026: From $334
    19

    Sa

  • PDX–BIL, Sep 20, 2026: From $434
    20

    Su

  • PDX–BIL, Sep 21, 2026: From $340
    21

    Mo

  • PDX–BIL, Sep 22, 2026: From $244
    22

    Tu

  • PDX–BIL, Sep 23, 2026: From $244
    23

    We

  • PDX–BIL, Sep 24, 2026: From $289
    24

    Th

  • PDX–BIL, Sep 25, 2026: From $254
    25

    Fr

  • PDX–BIL, Sep 26, 2026: From $244
    26

    Sa

  • PDX–BIL, Sep 27, 2026: From $434
    27

    Su

  • PDX–BIL, Sep 28, 2026: From $279
    28

    Mo

  • PDX–BIL, Sep 29, 2026: From $219
    29

    Tu

  • PDX–BIL, Sep 30, 2026: From $229
    30

    We

  • PDX–BIL, Oct 1, 2026: From $244
    01

    Th

    OCT

  • PDX–BIL, Oct 2, 2026: From $244
    02

    Fr

  • PDX–BIL, Oct 3, 2026: From $219
    03

    Sa

  • PDX–BIL, Oct 4, 2026: From $344
    04

    Su

  • PDX–BIL, Oct 5, 2026: From $289
    05

    Mo

  • PDX–BIL, Oct 6, 2026: From $244
    06

    Tu

  • PDX–BIL, Oct 7, 2026: From $154
    07

    We

    • Range$154-$434

    *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 Portland to Billings.*

    $
    keyboard_arrow_down
    One-way low-fare flights Portland to Billings.*
    From
    To
    Fare Type
    Dates
    Price
    Portland (PDX)Billings (BIL)One-way
    |
    Saver    		Depart: Dec 9, 2026

    From

    $134

    Seen: 6 hours ago

    Portland (PDX)Billings (BIL)One-way
    |
    Saver    		Depart: Jan 6, 2027

    From

    $134

    Seen: 6 hours ago

    Portland (PDX)Billings (BIL)One-way
    |
    Saver    		Depart: Feb 2, 2027

    From

    $134

    Seen: 6 hours ago

    Portland (PDX)Billings (BIL)One-way
    |
    Saver    		Depart: Feb 3, 2027

    From

    $134

    Seen: 6 hours ago

    Portland (PDX)Billings (BIL)One-way
    |
    Saver    		Depart: Feb 10, 2027

    From

    $134

    Seen: 6 hours ago

    Portland (PDX)Billings (BIL)One-way
    |
    Saver    		Depart: Nov 11, 2026

    From

    $134

    Seen: 6 hours ago

    Portland (PDX)Billings (BIL)One-way
    |
    Saver    		Depart: Nov 18, 2026

    From

    $134

    Seen: 6 hours ago

    Portland (PDX)Billings (BIL)One-way
    |
    Saver    		Depart: Nov 3, 2026

    From

    $134

    Seen: 6 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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