Southwest® flights from Boise to Phoenix from $129

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Low fares from Boise to Phoenix

$

Boise (BOI)to

Phoenix (PHX)
Depart: 11/10/2026

One-way

Basic

From
$129
Seen: 12 hrs ago

Boise (BOI)to

Phoenix (PHX)
Depart: 11/14/2026

One-way

Basic

From
$129
Seen: 20 hrs ago

Boise (BOI)to

Phoenix (PHX)
Depart: 01/05/2027

One-way

Basic

From
$129
Seen: 9 hrs ago

Boise (BOI)to

Phoenix (PHX)
Depart: 11/03/2026

One-way

Basic

From
$129
Seen: 4 hrs ago

Boise (BOI)to

Phoenix (PHX)
Depart: 11/04/2026

One-way

Basic

From
$129
Seen: 19 hrs ago

Boise (BOI)to

Phoenix (PHX)
Depart: 11/18/2026

One-way

Basic

From
$129
Seen: 11 hrs ago

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Explore flights from Boise to Phoenix

Oct 2026
From$169*
Seen: 7 hrs ago
One Way/Basic
Nov 2026
From$129*
Seen: 19 hrs ago
One Way/Basic
Dec 2026
From$129*
Seen: 22 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $139
cmp-daily-histogram-bars-legend-max-price-aria-label $244
Displaying fares for October-2026
  • BOI–PHX, 10/03/2026: From $234
    03

    Sat

    OCT

  • BOI–PHX, 10/04/2026: From $244
    04

    Sun

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

    Mon

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

    Tue

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

    Wed

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

    Thu

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

    Fri

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

    Sat

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

    Sun

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

    Mon

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

    Tue

  • BOI–PHX, 10/14/2026: From $234
    14

    Wed

  • BOI–PHX, 10/15/2026: From $234
    15

    Thu

  • BOI–PHX: cmp-view-offers-disclaimer. Find Offers
    16

    Fri

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

    Sat

  • BOI–PHX, 10/18/2026: From $204
    18

    Sun

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

    Mon

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

    Tue

  • BOI–PHX, 10/21/2026: From $194
    21

    Wed

  • BOI–PHX, 10/22/2026: From $194
    22

    Thu

  • BOI–PHX, 10/23/2026: From $189
    23

    Fri

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

    Sat

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

    Sun

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

    Mon

  • BOI–PHX, 10/27/2026: From $169
    27

    Tue

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

    Wed

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

    Thu

  • BOI–PHX, 10/30/2026: From $169
    30

    Fri

  • BOI–PHX: cmp-view-offers-disclaimer. Find Offers
    31

    Sat

  • BOI–PHX, 11/01/2026: From $139
    01

    Sun

    NOV

  • BOI–PHX, 11/02/2026: From $179
    02

    Mon

    • Range$139-$244

    *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:
    Boise Airport
    Arriving at:
    Sky Harbor International Airport
    Average flight time:
    2 hours 3 minutes
    Distance:
    735 miles

    Route Information

    153† 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 Boise to Phoenix is 2 hours 3 minutes.
    There are 153 weekly flights from Boise to Phoenix on Southwest Airlines.
    Yes, Southwest flies nonstop from Boise to Phoenix 2 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from Boise to Phoenix once per day on Saturdays and 2 times per day on Sundays.
    To find the lowest fares by day and time to fly Boise to Phoenix with Southwest, check out our Low Fare Calendar.
    You can rent a car at Sky Harbor International Airport book yours with your flight.
    Yes! Flights from Boise to Phoenix—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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