Southwest® flights from Phoenix to Boston from $159

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Low fares from Phoenix to Boston

$

Phoenix (PHX)to

Boston (BOS)
Depart: 12/10/2026

One-way

Basic

From
$159
Seen: 23 hrs ago

Phoenix (PHX)to

Boston (BOS)
Depart: 12/01/2026

One-way

Basic

From
$159
Seen: 19 hrs ago

Phoenix (PHX)to

Boston (BOS)
Depart: 12/16/2026

One-way

Basic

From
$159
Seen: 8 hrs ago

Phoenix (PHX)to

Boston (BOS)
Depart: 12/09/2026

One-way

Basic

From
$159
Seen: 14 hrs ago

Phoenix (PHX)to

Boston (BOS)
Depart: 12/07/2026

One-way

Basic

From
$159
Seen: 10 hrs ago

Phoenix (PHX)to

Boston (BOS)
Depart: 12/08/2026

One-way

Basic

From
$159
Seen: 22 hrs ago

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Explore flights from Phoenix to Boston

Nov 2026
From$205*
Seen: 7 hrs ago
One Way/Basic
Dec 2026
From$159*
Seen: 14 hrs ago
One Way/Basic
Jan 2027
From$174*
Seen: 18 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $159
cmp-daily-histogram-bars-legend-max-price-aria-label $531
Displaying fares for November-2026
  • PHX–BOS, 11/11/2026: From $355
    11

    Wed

    NOV

  • PHX–BOS, 11/12/2026: From $404
    12

    Thu

  • PHX–BOS, 11/13/2026: From $399
    13

    Fri

  • PHX–BOS, 11/14/2026: From $355
    14

    Sat

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

    Sun

  • PHX–BOS, 11/16/2026: From $399
    16

    Mon

  • PHX–BOS, 11/17/2026: From $314
    17

    Tue

  • PHX–BOS, 11/18/2026: From $314
    18

    Wed

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

    Thu

  • PHX–BOS, 11/20/2026: From $276
    20

    Fri

  • PHX–BOS, 11/21/2026: From $276
    21

    Sat

  • PHX–BOS, 11/22/2026: From $276
    22

    Sun

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

    Mon

  • PHX–BOS, 11/24/2026: From $205
    24

    Tue

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

    Wed

  • PHX–BOS: cmp-view-offers-disclaimer. Find Offers
    26

    Thu

  • PHX–BOS, 11/27/2026: From $238
    27

    Fri

  • PHX–BOS, 11/28/2026: From $485
    28

    Sat

  • PHX–BOS, 11/29/2026: From $531
    29

    Sun

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

    Mon

  • PHX–BOS, 12/01/2026: From $159
    01

    Tue

    DEC

  • PHX–BOS: cmp-view-offers-disclaimer. Find Offers
    02

    Wed

  • PHX–BOS: cmp-view-offers-disclaimer. Find Offers
    03

    Thu

  • PHX–BOS: cmp-view-offers-disclaimer. Find Offers
    04

    Fri

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

    Sat

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

    Sun

  • PHX–BOS, 12/07/2026: From $159
    07

    Mon

  • PHX–BOS, 12/08/2026: From $159
    08

    Tue

  • PHX–BOS, 12/09/2026: From $159
    09

    Wed

  • PHX–BOS, 12/10/2026: From $159
    10

    Thu

    • Range$159-$531

    *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

    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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