Earn point on your loyalty program!arrow arc left

Cheap flights from Boston (BOS) to Philadelphia (PHL)

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

How to find the cheapest flight from Boston (BOS) to Philadelphia (PHL)

How to find the cheapest flight from Boston (BOS) to Philadelphia (PHL)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Boston (BOS) to Philadelphia (PHL)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Boston (BOS) to Philadelphia (PHL)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.

Cheap flights from Boston to Philadelphia in April , May 2026

30 Apr - 05 May $ 255.00
BOS
Boston
United Airlines
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
United Airlines
1 STOPS
BOS
Boston
Pick dates
09 Apr - 09 May $ 868.00
BOS
Boston
Spirit Airlines
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Spirit Airlines
1 STOPS
BOS
Boston
Pick dates
11 Apr - 07 May $ 890.00
BOS
Boston
Spirit Airlines
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Spirit Airlines
1 STOPS
BOS
Boston
Pick dates

Last minute flights from Boston to Philadelphia

23 Apr - 30 Apr $ 255.00
BOS
Boston
United Airlines
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
United Airlines
1 STOPS
BOS
Boston
Pick dates
11 Apr - 30 Apr $ 1,088.00
BOS
Boston
Alaska Airlines
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Alaska Airlines
1 STOPS
BOS
Boston
Pick dates
11 Apr - 30 Apr $ 1,149.00
BOS
Boston
Alaska Airlines
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Alaska Airlines
1 STOPS
BOS
Boston
Pick dates

One-way flights to Philadelphia from Boston

5:45 AM - 8:35 AM
United Airlines
1 Stops
4h 9m
BOS - PHL
$ 129
Kiwi
Pick dates
5:45 AM - 8:39 AM
United Airlines
1 Stops
4h 13m
BOS - PHL
$ 194
Kiwi
Pick dates
9:30 AM - 12:55 PM
United Airlines
1 Stops
4h 41m
BOS - PHL
$ 194
Kiwi
Pick dates

How to find the cheapest flight from Boston (BOS) to Philadelphia (PHL)

Related info for your journey
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Boston (BOS) to Philadelphia (PHL)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Boston (BOS) to Philadelphia (PHL)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.