Southwest® flights from Boston to Phoenix from $195

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Low fares from Boston to Phoenix

$

Boston (BOS)to

Phoenix (PHX)
Depart: 10/24/2026

One-way

Basic

From
$195
Seen: 7 hrs ago

Boston (BOS)to

Phoenix (PHX)
Depart: 09/17/2026

One-way

Basic

From
$200
Seen: 19 hrs ago

Boston (BOS)to

Phoenix (PHX)
Depart: 09/12/2026

One-way

Basic

From
$200
Seen: 20 hrs ago

Boston (BOS)to

Phoenix (PHX)
Depart: 10/31/2026

One-way

Basic

From
$200
Seen: 17 hrs ago

Boston (BOS)to

Phoenix (PHX)
Depart: 11/09/2026

One-way

Basic

From
$200
Seen: 9 hrs ago

Boston (BOS)to

Phoenix (PHX)
Depart: 11/12/2026

One-way

Basic

From
$200
Seen: 8 hrs ago

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Explore flights from Boston to Phoenix

Aug 2026
From$315*
Seen: 4 hrs ago
One Way/Basic
Sep 2026
From$200*
Seen: 4 hrs ago
One Way/Basic
Oct 2026
From$195*
Seen: 7 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $200
cmp-daily-histogram-bars-legend-max-price-aria-label $349
Displaying fares for August-2026
  • BOS–PHX, 08/21/2026: From $349
    21

    Fri

    AUG

  • BOS–PHX, 08/22/2026: From $315
    22

    Sat

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

    Sun

  • BOS–PHX, 08/24/2026: From $349
    24

    Mon

  • BOS–PHX, 08/25/2026: From $315
    25

    Tue

  • BOS–PHX, 08/26/2026: From $315
    26

    Wed

  • BOS–PHX, 08/27/2026: From $344
    27

    Thu

  • BOS–PHX: cmp-view-offers-disclaimer. Find Offers
    28

    Fri

  • BOS–PHX, 08/29/2026: From $315
    29

    Sat

  • BOS–PHX, 08/30/2026: From $344
    30

    Sun

  • BOS–PHX, 08/31/2026: From $344
    31

    Mon

  • BOS–PHX, 09/01/2026: From $315
    01

    Tue

    SEP

  • BOS–PHX, 09/02/2026: From $315
    02

    Wed

  • BOS–PHX, 09/03/2026: From $234
    03

    Thu

  • BOS–PHX, 09/04/2026: From $234
    04

    Fri

  • BOS–PHX: cmp-view-offers-disclaimer. Find Offers
    05

    Sat

  • BOS–PHX: cmp-view-offers-disclaimer. Find Offers
    06

    Sun

  • BOS–PHX, 09/07/2026: From $346
    07

    Mon

  • BOS–PHX, 09/08/2026: From $234
    08

    Tue

  • BOS–PHX, 09/09/2026: From $212
    09

    Wed

  • BOS–PHX, 09/10/2026: From $200
    10

    Thu

  • BOS–PHX: cmp-view-offers-disclaimer. Find Offers
    11

    Fri

  • BOS–PHX, 09/12/2026: From $200
    12

    Sat

  • BOS–PHX, 09/13/2026: From $269
    13

    Sun

  • BOS–PHX: cmp-view-offers-disclaimer. Find Offers
    14

    Mon

  • BOS–PHX: cmp-view-offers-disclaimer. Find Offers
    15

    Tue

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

    Wed

  • BOS–PHX, 09/17/2026: From $200
    17

    Thu

  • BOS–PHX, 09/18/2026: From $214
    18

    Fri

  • BOS–PHX: cmp-view-offers-disclaimer. Find Offers
    19

    Sat

  • BOS–PHX, 09/20/2026: From $259
    20

    Sun

    • Range$200-$349

    *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:
    Logan International Airport
    Arriving at:
    Sky Harbor International Airport
    Distance:
    2300 miles

    Route Information

    155† 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 155 weekly flights from Boston to Phoenix on Southwest Airlines.
    To find the lowest fares by day and time to fly Boston 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 Boston 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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