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

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

Prices were available within the past 7 days and start at $45 for one-way flights and $90 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Oct 16 - Sun, Nov 2

BOS

Boston

PHL

Philadelphia

$90 Roundtrip, found 15 hours ago

$90

Roundtrip

found 15 hours ago

Select Frontier Airlines flight, departing Thu, Oct 16 from Boston to Philadelphia, returning Sun, Nov 2, priced at $90 found 15 hours ago

Thu, Oct 16 - Thu, Nov 6

BOS

Boston

PHL

Philadelphia

$99 Roundtrip, found 15 hours ago

$99

Roundtrip

found 15 hours ago

Select Frontier Airlines flight, departing Thu, Oct 16 from Boston to Philadelphia, returning Thu, Nov 6, priced at $99 found 15 hours ago

Thu, Oct 9 - Sun, Oct 12

BOS

Boston

PHL

Philadelphia

$119 Roundtrip, found 3 days ago

$119

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Thu, Oct 9 from Boston to Philadelphia, returning Sun, Oct 12, priced at $119 found 3 days ago

Thu, Oct 2 - Thu, Oct 9

BOS

Boston

PHL

Philadelphia

$121 Roundtrip, found 4 days ago

$121

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Thu, Oct 2 from Boston to Philadelphia, returning Thu, Oct 9, priced at $121 found 4 days ago

Sat, Oct 4 - Sun, Oct 12

BOS

Boston

PHL

Philadelphia

$154 Roundtrip, found 4 days ago

$154

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Sat, Oct 4 from Boston to Philadelphia, returning Sun, Oct 12, priced at $154 found 4 days ago

Sat, Oct 4 - Thu, Oct 9

BOS

Boston

PHL

Philadelphia

$155 Roundtrip, found 4 days ago

$155

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Sat, Oct 4 from Boston to Philadelphia, returning Thu, Oct 9, priced at $155 found 4 days ago