Southwest® flights from Phoenix to Boise from $129

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Low fares from Phoenix to Boise

$

Phoenix (PHX)to

Boise (BOI)
Depart: 11/07/2026

One-way

Basic

From
$129
Seen: 11 hrs ago

Phoenix (PHX)to

Boise (BOI)
Depart: 10/28/2026

One-way

Basic

From
$129
Seen: 8 hrs ago

Phoenix (PHX)to

Boise (BOI)
Depart: 10/17/2026

One-way

Basic

From
$129
Seen: 42 minutes ago

Phoenix (PHX)to

Boise (BOI)
Depart: 12/08/2026

One-way

Basic

From
$129
Seen: 13 hrs ago

Phoenix (PHX)to

Boise (BOI)
Depart: 10/10/2026

One-way

Basic

From
$129
Seen: 14 hrs ago

Phoenix (PHX)to

Boise (BOI)
Depart: 11/17/2026

One-way

Basic

From
$129
Seen: 10 hrs ago

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Explore flights from Phoenix to Boise

Sep 2026
From$184*
Seen: 1 hour ago
One Way/Basic
Oct 2026
From$129*
Seen: 8 hrs ago
One Way/Basic
Nov 2026
From$129*
Seen: 1 hour 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 September-2026
  • PHX–BOI, 09/11/2026: From $224
    11

    Fri

    SEP

  • PHX–BOI, 09/12/2026: From $234
    12

    Sat

  • PHX–BOI, 09/13/2026: From $224
    13

    Sun

  • PHX–BOI, 09/14/2026: From $224
    14

    Mon

  • PHX–BOI, 09/15/2026: From $224
    15

    Tue

  • PHX–BOI, 09/16/2026: From $224
    16

    Wed

  • PHX–BOI, 09/17/2026: From $224
    17

    Thu

  • PHX–BOI, 09/18/2026: From $224
    18

    Fri

  • PHX–BOI, 09/19/2026: From $224
    19

    Sat

  • PHX–BOI, 09/20/2026: From $234
    20

    Sun

  • PHX–BOI, 09/21/2026: From $224
    21

    Mon

  • PHX–BOI, 09/22/2026: From $224
    22

    Tue

  • PHX–BOI, 09/23/2026: From $184
    23

    Wed

  • PHX–BOI, 09/24/2026: From $184
    24

    Thu

  • PHX–BOI, 09/25/2026: From $184
    25

    Fri

  • PHX–BOI, 09/26/2026: From $184
    26

    Sat

  • PHX–BOI, 09/27/2026: From $184
    27

    Sun

  • PHX–BOI, 09/28/2026: From $184
    28

    Mon

  • PHX–BOI, 09/29/2026: From $184
    29

    Tue

  • PHX–BOI, 09/30/2026: From $184
    30

    Wed

  • PHX–BOI: cmp-view-offers-disclaimer. Find Offers
    01

    Thu

    OCT

  • PHX–BOI, 10/02/2026: From $159
    02

    Fri

  • PHX–BOI, 10/03/2026: From $159
    03

    Sat

  • PHX–BOI, 10/04/2026: From $159
    04

    Sun

  • PHX–BOI, 10/05/2026: From $159
    05

    Mon

  • PHX–BOI, 10/06/2026: From $159
    06

    Tue

  • PHX–BOI: cmp-view-offers-disclaimer. Find Offers
    07

    Wed

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

    Thu

  • PHX–BOI, 10/09/2026: From $159
    09

    Fri

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

    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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