$137 Cheap Frontier Airlines flights Boston (BOS) to Philadelphia (PHL)

$137 Cheap Frontier Airlines flights Boston (BOS) to Philadelphia (PHL)

Prices were available within the past 7 days and start at $137 for one-way flights and $197 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Dec 18 - Tue, Dec 23

BOS

Boston

PHL

Philadelphia

$197 Roundtrip, found 3 days ago

$197

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Thu, Dec 18 from Boston to Philadelphia, returning Tue, Dec 23, priced at $197 found 3 days ago

Mon, Dec 15 - Tue, Dec 23

BOS

Boston

PHL

Philadelphia

$223 Roundtrip, found 3 days ago

$223

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Mon, Dec 15 from Boston to Philadelphia, returning Tue, Dec 23, priced at $223 found 3 days ago

Mon, Dec 15 - Sat, Dec 20

BOS

Boston

PHL

Philadelphia

$248 Roundtrip, found 3 days ago

$248

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Mon, Dec 15 from Boston to Philadelphia, returning Sat, Dec 20, priced at $248 found 3 days ago

Mon, Dec 15 - Tue, Dec 16

BOS

Boston

PHL

Philadelphia

$251 Roundtrip, found 3 days ago

$251

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Mon, Dec 15 from Boston to Philadelphia, returning Tue, Dec 16, priced at $251 found 3 days ago