Southwest® flights from Portland, OR to Boise from $94

Promo Code

Low fares from Portland, OR to Boise

$

Portland, OR (PDX)to

Boise (BOI)
Depart: 09/22/2026

One-way

Basic

From
$94
Seen: 18 hrs ago

Portland, OR (PDX)to

Boise (BOI)
Depart: 10/07/2026

One-way

Basic

From
$94
Seen: 20 hrs ago

Portland, OR (PDX)to

Boise (BOI)
Depart: 09/05/2026

One-way

Basic

From
$94
Seen: 16 hrs ago

Portland, OR (PDX)to

Boise (BOI)
Depart: 09/09/2026

One-way

Basic

From
$94
Seen: 8 hrs ago

Portland, OR (PDX)to

Boise (BOI)
Depart: 09/08/2026

One-way

Basic

From
$99
Seen: 9 hrs ago

Portland, OR (PDX)to

Boise (BOI)
Depart: 09/10/2026

One-way

Basic

From
$104
Seen: 13 hrs ago

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Explore flights from Portland, OR to Boise

Jul 2026
From$319*
Seen: 19 hrs ago
One Way/Basic
Aug 2026
From$127*
Seen: 11 hrs ago
One Way/Basic
Sep 2026
From$94*
Seen: 16 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $127
cmp-daily-histogram-bars-legend-max-price-aria-label $319
Displaying fares for July-2026
  • PDX–BOI, 07/31/2026: From $319
    31

    Fri

    JUL

  • PDX–BOI, 08/01/2026: From $319
    01

    Sat

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

    Sun

  • PDX–BOI, 08/03/2026: From $285
    03

    Mon

  • PDX–BOI, 08/04/2026: From $285
    04

    Tue

  • PDX–BOI, 08/05/2026: From $285
    05

    Wed

  • PDX–BOI, 08/06/2026: From $274
    06

    Thu

  • PDX–BOI, 08/07/2026: From $274
    07

    Fri

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

    Sat

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

    Sun

  • PDX–BOI, 08/10/2026: From $274
    10

    Mon

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

    Tue

  • PDX–BOI, 08/12/2026: From $274
    12

    Wed

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

    Thu

  • PDX–BOI, 08/14/2026: From $219
    14

    Fri

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

    Sat

  • PDX–BOI, 08/16/2026: From $219
    16

    Sun

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

    Mon

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

    Tue

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

    Wed

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

    Thu

  • PDX–BOI, 08/21/2026: From $127
    21

    Fri

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

    Sat

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

    Sun

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

    Mon

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

    Tue

  • PDX–BOI, 08/26/2026: From $127
    26

    Wed

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

    Thu

  • PDX–BOI, 08/28/2026: From $127
    28

    Fri

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

    Sat

  • PDX–BOI, 08/30/2026: From $154
    30

    Sun

    • Range$127-$319

    *Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Additional fees and charges for optional products and services may apply. Modifying this information may result in a different fare. To find the most updated fare, please visit Southwest.com. Fares listed are Basic, which are subject to additional terms and conditions.

    Flight Details

    Departing from:
    Portland International Airport
    Arriving at:
    Boise Airport
    Distance:
    344 miles

    Route Information

    98† Weekly flights

    † Weekly flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025. Note: route may not operate every day of the week.

    ‡ Nonstop flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025.

    Questions we hear the most

    There are 98 weekly flights from Portland, OR to Boise on Southwest Airlines.
    To find the lowest fares by day and time to fly Portland, OR to Boise with Southwest, check out our Low Fare Calendar.
    You can rent a car at Boise Airport book yours with your flight.
    Yes! Flights from Portland, OR to Boise—or from here or there to anywhere—can be changed with no change fees. Fare difference may apply.
    Check the status of your upcoming Southwest flight.
    Check out the Southwest Airlines® Help Center for answers about everything Southwest.

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