Southwest® flights from Boston to Philadelphia from $111

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Low fares from Boston to Philadelphia

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Boston (BOS)to

Philadelphia (PHL)
Depart: 10/31/2026

One-way

Basic

From
$111
Seen: 19 hrs ago

Boston (BOS)to

Philadelphia (PHL)
Depart: 10/26/2026

One-way

Basic

From
$116
Seen: 10 hrs ago

Boston (BOS)to

Philadelphia (PHL)
Depart: 01/15/2027

One-way

Basic

From
$145
Seen: 44 minutes ago

Boston (BOS)to

Philadelphia (PHL)
Depart: 10/31/2026

One-way

Choice

From
$148
Seen: 19 hrs ago

Boston (BOS)to

Philadelphia (PHL)
Depart: 10/26/2026

One-way

Choice

From
$153
Seen: 10 hrs ago

Boston (BOS)to

Philadelphia (PHL)
Depart: 11/27/2026

One-way

Basic

From
$162
Seen: 4 hrs ago

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Explore flights from Boston to Philadelphia

Oct 2026
From$111*
Seen: 19 hrs ago
One Way/Basic
Nov 2026
From$162*
Seen: 4 hrs ago
One Way/Basic
Dec 2026
From$283*
Seen: 3 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $111
cmp-daily-histogram-bars-legend-max-price-aria-label $567
Displaying fares for October-2026
  • BOS–PHL, 10/08/2026: From $428
    08

    Thu

    OCT

  • BOS–PHL, 10/09/2026: From $567
    09

    Fri

  • BOS–PHL, 10/10/2026: From $446
    10

    Sat

  • BOS–PHL, 10/11/2026: From $446
    11

    Sun

  • BOS–PHL, 10/12/2026: From $542
    12

    Mon

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

    Tue

  • BOS–PHL, 10/14/2026: From $342
    14

    Wed

  • BOS–PHL, 10/15/2026: From $324
    15

    Thu

  • BOS–PHL, 10/16/2026: From $353
    16

    Fri

  • BOS–PHL, 10/17/2026: From $319
    17

    Sat

  • BOS–PHL, 10/18/2026: From $567
    18

    Sun

  • BOS–PHL, 10/19/2026: From $353
    19

    Mon

  • BOS–PHL, 10/20/2026: From $319
    20

    Tue

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

    Wed

  • BOS–PHL: cmp-view-offers-disclaimer. Find Offers
    22

    Thu

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

    Fri

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

    Sat

  • BOS–PHL, 10/25/2026: From $408
    25

    Sun

  • BOS–PHL, 10/26/2026: From $116
    26

    Mon

  • BOS–PHL: cmp-view-offers-disclaimer. Find Offers
    27

    Tue

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

    Wed

  • BOS–PHL: cmp-view-offers-disclaimer. Find Offers
    29

    Thu

  • BOS–PHL, 10/30/2026: From $189
    30

    Fri

  • BOS–PHL, 10/31/2026: From $111
    31

    Sat

  • BOS–PHL: cmp-view-offers-disclaimer. Find Offers
    01

    Sun

    NOV

  • BOS–PHL, 11/02/2026: From $216
    02

    Mon

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

    Tue

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

    Wed

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

    Thu

  • BOS–PHL, 11/06/2026: From $216
    06

    Fri

  • BOS–PHL: cmp-view-offers-disclaimer. Find Offers
    07

    Sat

    • Range$111-$567

    *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:
    Philadelphia International Airport
    Distance:
    280 miles

    Questions we hear the most

    There are 33 weekly flights from Boston to Philadelphia on Southwest Airlines.
    To find the lowest fares by day and time to fly Boston to Philadelphia with Southwest, check out our Low Fare Calendar.
    You can rent a car at Philadelphia International Airport book yours with your flight.
    Yes! Flights from Boston to Philadelphia—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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