Southwest® flights from Boston to Philadelphia from $158

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Low fares from Boston to Philadelphia

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Boston (BOS)to

Philadelphia (PHL)
Depart: 11/13/2026

One-way

Basic

From
$158
Seen: 18 hrs ago

Boston (BOS)to

Philadelphia (PHL)
Depart: 11/22/2026

One-way

Basic

From
$158
Seen: 19 hrs ago

Boston (BOS)to

Philadelphia (PHL)
Depart: 11/12/2026

One-way

Basic

From
$158
Seen: 6 hrs ago

Boston (BOS)to

Philadelphia (PHL)
Depart: 12/09/2026

One-way

Basic

From
$158
Seen: 11 hrs ago

Boston (BOS)to

Philadelphia (PHL)
Depart: 11/10/2026

One-way

Basic

From
$158
Seen: 6 hrs ago

Boston (BOS)to

Philadelphia (PHL)
Depart: 11/25/2026

One-way

Basic

From
$163
Seen: 21 hrs ago

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Explore flights from Boston to Philadelphia

Sep 2026
From$309*
Seen: 14 hrs ago
One Way/Basic
Oct 2026
From$168*
Seen: 14 hrs ago
One Way/Basic
Nov 2026
From$158*
Seen: 6 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $218
cmp-daily-histogram-bars-legend-max-price-aria-label $670
Displaying fares for September-2026
  • BOS–PHL: cmp-view-offers-disclaimer. Find Offers
    20

    Sun

    SEP

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

    Mon

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

    Tue

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

    Wed

  • BOS–PHL, 09/24/2026: From $419
    24

    Thu

  • BOS–PHL, 09/25/2026: From $369
    25

    Fri

  • BOS–PHL, 09/26/2026: From $309
    26

    Sat

  • BOS–PHL, 09/27/2026: From $670
    27

    Sun

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

    Mon

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

    Tue

  • BOS–PHL, 09/30/2026: From $309
    30

    Wed

  • BOS–PHL, 10/01/2026: From $309
    01

    Thu

    OCT

  • BOS–PHL, 10/02/2026: From $309
    02

    Fri

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

    Sat

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

    Sun

  • BOS–PHL, 10/05/2026: From $244
    05

    Mon

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

    Tue

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

    Wed

  • BOS–PHL, 10/08/2026: From $303
    08

    Thu

  • BOS–PHL, 10/09/2026: From $537
    09

    Fri

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

    Sat

  • BOS–PHL, 10/11/2026: From $300
    11

    Sun

  • BOS–PHL: cmp-view-offers-disclaimer. Find Offers
    12

    Mon

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

    Tue

  • BOS–PHL, 10/14/2026: From $218
    14

    Wed

  • BOS–PHL, 10/15/2026: From $218
    15

    Thu

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

    Fri

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

    Sat

  • BOS–PHL, 10/18/2026: From $419
    18

    Sun

  • BOS–PHL, 10/19/2026: From $290
    19

    Mon

    • Range$218-$670

    *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

    Route Information

    33† 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 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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