Southwest® flights from Phoenix to Boston from $162

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Low fares from Phoenix to Boston

$

Phoenix (PHX)to

Boston (BOS)
Depart: 10/23/2026

One-way

Basic

From
$162
Seen: 20 minutes ago

Phoenix (PHX)to

Boston (BOS)
Depart: 10/22/2026

One-way

Basic

From
$162
Seen: 38 minutes ago

Phoenix (PHX)to

Boston (BOS)
Depart: 10/28/2026

One-way

Basic

From
$174
Seen: 3 hrs ago

Phoenix (PHX)to

Boston (BOS)
Depart: 10/20/2026

One-way

Basic

From
$174
Seen: 13 hrs ago

Phoenix (PHX)to

Boston (BOS)
Depart: 09/22/2026

One-way

Basic

From
$179
Seen: 12 hrs ago

Phoenix (PHX)to

Boston (BOS)
Depart: 09/15/2026

One-way

Basic

From
$179
Seen: 14 hrs ago

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Explore flights from Phoenix to Boston

Aug 2026
From$315*
Seen: 23 hrs ago
One Way/Basic
Sep 2026
From$179*
Seen: 13 hrs ago
One Way/Basic
Oct 2026
From$162*
Seen: 38 minutes ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $179
cmp-daily-histogram-bars-legend-max-price-aria-label $349
Displaying fares for August-2026
  • PHX–BOS: cmp-view-offers-disclaimer. Find Offers
    22

    Sat

    AUG

  • PHX–BOS, 08/23/2026: From $349
    23

    Sun

  • PHX–BOS: cmp-view-offers-disclaimer. Find Offers
    24

    Mon

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

    Tue

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

    Wed

  • PHX–BOS, 08/27/2026: From $349
    27

    Thu

  • PHX–BOS, 08/28/2026: From $344
    28

    Fri

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

    Sat

  • PHX–BOS: cmp-view-offers-disclaimer. Find Offers
    30

    Sun

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

    Mon

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

    Tue

    SEP

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

    Wed

  • PHX–BOS, 09/03/2026: From $344
    03

    Thu

  • PHX–BOS, 09/04/2026: From $249
    04

    Fri

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

    Sat

  • PHX–BOS, 09/06/2026: From $212
    06

    Sun

  • PHX–BOS, 09/07/2026: From $270
    07

    Mon

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

    Tue

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

    Wed

  • PHX–BOS, 09/10/2026: From $212
    10

    Thu

  • PHX–BOS, 09/11/2026: From $196
    11

    Fri

  • PHX–BOS, 09/12/2026: From $179
    12

    Sat

  • PHX–BOS: cmp-view-offers-disclaimer. Find Offers
    13

    Sun

  • PHX–BOS, 09/14/2026: From $179
    14

    Mon

  • PHX–BOS, 09/15/2026: From $179
    15

    Tue

  • PHX–BOS, 09/16/2026: From $179
    16

    Wed

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

    Thu

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

    Fri

  • PHX–BOS, 09/19/2026: From $179
    19

    Sat

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

    Sun

  • PHX–BOS: cmp-view-offers-disclaimer. Find Offers
    21

    Mon

    • Range$179-$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:
    Sky Harbor International Airport
    Arriving at:
    Logan International Airport
    Distance:
    2300 miles

    Route Information

    152† 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 152 weekly flights from Phoenix to Boston on Southwest Airlines.
    To find the lowest fares by day and time to fly Phoenix to Boston with Southwest, check out our Low Fare Calendar.
    You can rent a car at Logan International Airport book yours with your flight.
    Yes! Flights from Phoenix to Boston—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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