$45 Cheap Frontier Airlines flights Philadelphia (PHL) to Boston (BOS)

$45 Cheap Frontier Airlines flights Philadelphia (PHL) to Boston (BOS)

Prices were available within the past 7 days and start at $45 for one-way flights and $112 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Oct 19 - Thu, Oct 23

PHL

Philadelphia

BOS

Boston

$112 Roundtrip, found 6 days ago

$112

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Sun, Oct 19 from Philadelphia to Boston, returning Thu, Oct 23, priced at $112 found 6 days ago

Thu, Nov 13 - Sun, Nov 16

PHL

Philadelphia

BOS

Boston

$121 Roundtrip, found 3 days ago

$121

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Thu, Nov 13 from Philadelphia to Boston, returning Sun, Nov 16, priced at $121 found 3 days ago

Fri, Nov 14 - Sun, Nov 16

PHL

Philadelphia

BOS

Boston

$151 Roundtrip, found 3 days ago

$151

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Fri, Nov 14 from Philadelphia to Boston, returning Sun, Nov 16, priced at $151 found 3 days ago

Thu, Oct 2 - Sun, Oct 5

PHL

Philadelphia

BOS

Boston

$154 Roundtrip, found 2 days ago

$154

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Thu, Oct 2 from Philadelphia to Boston, returning Sun, Oct 5, priced at $154 found 2 days ago

Sun, Oct 5 - Thu, Oct 9

PHL

Philadelphia

BOS

Boston

$159 Roundtrip, just found

$159

Roundtrip

just found

Select Frontier Airlines flight, departing Sun, Oct 5 from Philadelphia to Boston, returning Thu, Oct 9, priced at $159 just found

Fri, Nov 14 - Sun, Nov 16

PHL

Philadelphia

BOS

Boston

$160 Roundtrip, found 3 days ago

$160

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Fri, Nov 14 from Philadelphia to Boston, returning Sun, Nov 16, priced at $160 found 3 days ago