$54 Cheap Frontier Airlines flights Boston (BOS) to Philadelphia (PHL)

$54 Cheap Frontier Airlines flights Boston (BOS) to Philadelphia (PHL)

Prices were available within the past 7 days and start at $54 for one-way flights and $100 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Aug 12 - Thu, Aug 28

BOS

Boston

PHL

Philadelphia

$100 Roundtrip, found 2 days ago

$100

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Tue, Aug 12 from Boston to Philadelphia, returning Thu, Aug 28, priced at $100 found 2 days ago

Sun, Sep 7 - Sun, Sep 21

BOS

Boston

PHL

Philadelphia

$108 Roundtrip, found 2 days ago

$108

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sun, Sep 7 from Boston to Philadelphia, returning Sun, Sep 21, priced at $108 found 2 days ago

Sat, Aug 9 - Tue, Aug 12

BOS

Boston

PHL

Philadelphia

$191 Roundtrip, found 2 days ago

$191

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sat, Aug 9 from Boston to Philadelphia, returning Tue, Aug 12, priced at $191 found 2 days ago

Sat, Aug 9 - Thu, Aug 28

BOS

Boston

PHL

Philadelphia

$196 Roundtrip, found 2 days ago

$196

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sat, Aug 9 from Boston to Philadelphia, returning Thu, Aug 28, priced at $196 found 2 days ago

Sat, Jul 19 - Tue, Jul 22

BOS

Boston

PHL

Philadelphia

$201 Roundtrip, found 1 day ago

$201

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, Jul 19 from Boston to Philadelphia, returning Tue, Jul 22, priced at $201 found 1 day ago