Southwest® flights from Boston to Philadelphia from $140

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Low fares from Boston to Philadelphia

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Boston (BOS)to

Philadelphia (PHL)
Depart: 12/14/2026

One-way

Basic

From
$140
Seen: 3 hrs ago

Boston (BOS)to

Philadelphia (PHL)
Depart: 12/04/2026

One-way

Basic

From
$160
Seen: 19 hrs ago

Boston (BOS)to

Philadelphia (PHL)
Depart: 12/14/2026

One-way

Choice

From
$175
Seen: 3 hrs ago

Boston (BOS)to

Philadelphia (PHL)
Depart: 11/12/2026

One-way

Basic

From
$188
Seen: 8 hrs ago

Boston (BOS)to

Philadelphia (PHL)
Depart: 12/13/2026

One-way

Basic

From
$188
Seen: 1 hour ago

Boston (BOS)to

Philadelphia (PHL)
Depart: 12/04/2026

One-way

Choice

From
$195
Seen: 19 hrs ago

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Explore flights from Boston to Philadelphia

Oct 2026
From$362*
Seen: 15 hrs ago
One Way/Basic
Nov 2026
From$188*
Seen: 8 hrs ago
One Way/Basic
Dec 2026
From$140*
Seen: 3 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $188
cmp-daily-histogram-bars-legend-max-price-aria-label $577
Displaying fares for October-2026
  • BOS–PHL, 10/28/2026: From $362
    28

    Wed

    OCT

  • BOS–PHL, 10/29/2026: From $372
    29

    Thu

  • BOS–PHL, 10/30/2026: From $377
    30

    Fri

  • BOS–PHL: cmp-view-offers-disclaimer. Find Offers
    31

    Sat

  • BOS–PHL, 11/01/2026: From $422
    01

    Sun

    NOV

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

    Mon

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

    Tue

  • BOS–PHL, 11/04/2026: From $339
    04

    Wed

  • BOS–PHL, 11/05/2026: From $339
    05

    Thu

  • BOS–PHL, 11/06/2026: From $394
    06

    Fri

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

    Sat

  • BOS–PHL, 11/08/2026: From $577
    08

    Sun

  • BOS–PHL, 11/09/2026: From $339
    09

    Mon

  • BOS–PHL: cmp-view-offers-disclaimer. Find Offers
    10

    Tue

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

    Wed

  • BOS–PHL, 11/12/2026: From $188
    12

    Thu

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

    Fri

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

    Sat

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

    Sun

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

    Mon

  • BOS–PHL: cmp-view-offers-disclaimer. Find Offers
    17

    Tue

  • BOS–PHL, 11/18/2026: From $268
    18

    Wed

  • BOS–PHL, 11/19/2026: From $364
    19

    Thu

  • BOS–PHL, 11/20/2026: From $417
    20

    Fri

  • BOS–PHL, 11/21/2026: From $377
    21

    Sat

  • BOS–PHL, 11/22/2026: From $209
    22

    Sun

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

    Mon

  • BOS–PHL, 11/24/2026: From $377
    24

    Tue

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

    Wed

  • BOS–PHL, 11/26/2026: From $214
    26

    Thu

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

    Fri

    • Range$188-$577

    *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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