Earn point on your loyalty program!arrow arc left

Cheap flights from Boise (BOI) 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 Boise (BOI) to Philadelphia (PHL)

How to find the cheapest flight from Boise (BOI) 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 Boise (BOI) 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 Boise (BOI) 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 Boise to Philadelphia in March , April 2026

31 Mar - 25 Apr $ 412.00
BOI
Boise
Alaska Airlines
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Alaska Airlines
1 STOPS
BOI
Boise
Pick dates
28 Mar - 25 Apr $ 412.00
BOI
Boise
Alaska Airlines
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Alaska Airlines
1 STOPS
BOI
Boise
Pick dates
07 Mar - 08 Apr $ 705.00
BOI
Boise
Alaska Airlines
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Alaska Airlines
1 STOPS
BOI
Boise
Pick dates

Last minute flights from Boise to Philadelphia

28 Mar - 31 Mar $ 467.00
BOI
Boise
Alaska Airlines
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Alaska Airlines
1 STOPS
BOI
Boise
Pick dates
10 Mar - 31 Mar $ 621.00
BOI
Boise
Alaska Airlines
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Alaska Airlines
1 STOPS
BOI
Boise
Pick dates
07 Mar - 31 Mar $ 705.00
BOI
Boise
Alaska Airlines
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Alaska Airlines
1 STOPS
BOI
Boise
Pick dates

One-way flights to Philadelphia from Boise

2:40 PM - 5:57 PM
United Airlines
1 Stops
6h 50m
BOI - PHL
$ 209
Kiwi
Pick dates
6:28 AM - 9:16 AM
Alaska Airlines
1 Stops
8h 52m
BOI - PHL
$ 388
Kiwi
Pick dates
2:40 PM - 5:57 PM
United Airlines
1 Stops
6h 52m
BOI - PHL
$ 438
Kiwi
Pick dates

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