Southwest® flights from Phoenix to Boise from $129

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Low fares from Phoenix to Boise

$

Phoenix (PHX)to

Boise (BOI)
Depart: 10/31/2026

One-way

Basic

From
$129
Seen: 19 hrs ago

Phoenix (PHX)to

Boise (BOI)
Depart: 11/03/2026

One-way

Basic

From
$129
Seen: 6 hrs ago

Phoenix (PHX)to

Boise (BOI)
Depart: 12/08/2026

One-way

Basic

From
$129
Seen: 22 hrs ago

Phoenix (PHX)to

Boise (BOI)
Depart: 11/17/2026

One-way

Basic

From
$129
Seen: 15 hrs ago

Phoenix (PHX)to

Boise (BOI)
Depart: 11/04/2026

One-way

Basic

From
$129
Seen: 9 hrs ago

Phoenix (PHX)to

Boise (BOI)
Depart: 11/11/2026

One-way

Basic

From
$129
Seen: 8 hrs ago

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Explore flights from Phoenix to Boise

Oct 2026
From$129*
Seen: 19 hrs ago
One Way/Basic
Nov 2026
From$129*
Seen: 15 hrs ago
One Way/Basic
Dec 2026
From$129*
Seen: 15 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $129
cmp-daily-histogram-bars-legend-max-price-aria-label $234
Displaying fares for October-2026
  • PHX–BOI, 10/01/2026: From $190
    01

    Thu

    OCT

  • PHX–BOI, 10/02/2026: From $234
    02

    Fri

  • PHX–BOI, 10/03/2026: From $234
    03

    Sat

  • PHX–BOI, 10/04/2026: From $234
    04

    Sun

  • PHX–BOI, 10/05/2026: From $234
    05

    Mon

  • PHX–BOI, 10/06/2026: From $234
    06

    Tue

  • PHX–BOI, 10/07/2026: From $234
    07

    Wed

  • PHX–BOI, 10/08/2026: From $234
    08

    Thu

  • PHX–BOI, 10/09/2026: From $234
    09

    Fri

  • PHX–BOI, 10/10/2026: From $234
    10

    Sat

  • PHX–BOI, 10/11/2026: From $234
    11

    Sun

  • PHX–BOI, 10/12/2026: From $234
    12

    Mon

  • PHX–BOI, 10/13/2026: From $234
    13

    Tue

  • PHX–BOI, 10/14/2026: From $194
    14

    Wed

  • PHX–BOI, 10/15/2026: From $194
    15

    Thu

  • PHX–BOI, 10/16/2026: From $194
    16

    Fri

  • PHX–BOI, 10/17/2026: From $194
    17

    Sat

  • PHX–BOI, 10/18/2026: From $194
    18

    Sun

  • PHX–BOI, 10/19/2026: From $194
    19

    Mon

  • PHX–BOI, 10/20/2026: From $194
    20

    Tue

  • PHX–BOI, 10/21/2026: From $169
    21

    Wed

  • PHX–BOI, 10/22/2026: From $169
    22

    Thu

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

    Fri

  • PHX–BOI, 10/24/2026: From $169
    24

    Sat

  • PHX–BOI, 10/25/2026: From $169
    25

    Sun

  • PHX–BOI, 10/26/2026: From $169
    26

    Mon

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

    Tue

  • PHX–BOI, 10/28/2026: From $169
    28

    Wed

  • PHX–BOI, 10/29/2026: From $169
    29

    Thu

  • PHX–BOI, 10/30/2026: From $139
    30

    Fri

  • PHX–BOI, 10/31/2026: From $129
    31

    Sat

    • Range$129-$234

    *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:
    Sky Harbor International Airport
    Arriving at:
    Boise Airport
    Average flight time:
    2 hours 7 minutes
    Distance:
    735 miles

    Route Information

    134† Weekly flights
    • 2‡ Nonstop flights per day Monday through Friday
    • 1‡ Nonstop flight on Saturday
    • 2‡ Nonstop flights on Sunday

    † 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

    The average flight time from Phoenix to Boise is 2 hours 7 minutes.
    There are 134 weekly flights from Phoenix to Boise on Southwest Airlines.
    Yes, Southwest flies nonstop from Phoenix to Boise 2 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from Phoenix to Boise once per day on Saturdays and 2 times per day on Sundays.
    To find the lowest fares by day and time to fly Phoenix 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 Phoenix 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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