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Find low faresSouthwest® flights from Boston to Philadelphia from $216
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1 Passenger
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Low fares from Boston to Philadelphia
$
Boston (BOS)to
Philadelphia (PHL)
Depart: 04/10/2026
One-way
Basic
From
$216
Seen: 42 minutes ago
Boston (BOS)to
Philadelphia (PHL)
Depart: 03/12/2026
One-way
Basic
From
$216
Seen: 5 hrs ago
Boston (BOS)to
Philadelphia (PHL)
Depart: 04/30/2026
One-way
Basic
From
$216
Seen: 22 hrs ago
Boston (BOS)to
Philadelphia (PHL)
Depart: 03/16/2026
One-way
Basic
From
$216
Seen: 19 hrs ago
Boston (BOS)to
Philadelphia (PHL)
Depart: 04/25/2026
One-way
Basic
From
$216
Seen: 8 hrs ago
Boston (BOS)to
Philadelphia (PHL)
Depart: 02/27/2026
One-way
Basic
From
$227
Seen: 33 minutes ago
Explore flights from Boston to Philadelphia
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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.