Frontier Airlines Flight 2026 Deals & Information (2026/2027)

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Frontier Airlines Flight 2026 Route Deals From $55

The cheapest prices found with in the last 7 days for return flights were $104 and $55 for one-way flights to Philadelphia Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, May 1 - Tue, May 5
RSW
Southwest Florida Intl.
PHL
Philadelphia Intl.
$104 Roundtrip, found 2 days ago
$104
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Fri, May 1 from Southwest Florida Intl. to Philadelphia Intl., returning Tue, May 5, priced at $104 found 2 days ago
Thu, May 21 - Sun, May 24
RSW
Southwest Florida Intl.
PHL
Philadelphia Intl.
$118 Roundtrip, found 1 hour ago
$118
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Thu, May 21 from Southwest Florida Intl. to Philadelphia Intl., returning Sun, May 24, priced at $118 found 1 hour ago
Tue, May 5 - Tue, May 12
RSW
Southwest Florida Intl.
PHL
Philadelphia Intl.
$122 Roundtrip, found 1 day ago
$122
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, May 5 from Southwest Florida Intl. to Philadelphia Intl., returning Tue, May 12, priced at $122 found 1 day ago
Thu, Apr 30 - Thu, May 7
RSW
Southwest Florida Intl.
PHL
Philadelphia Intl.
$128 Roundtrip, found 6 days ago
$128
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Thu, Apr 30 from Southwest Florida Intl. to Philadelphia Intl., returning Thu, May 7, priced at $128 found 6 days ago
Mon, Mar 30 - Sun, Apr 5
RSW
Southwest Florida Intl.
PHL
Philadelphia Intl.
$129 Roundtrip, found 2 days ago
$129
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Mon, Mar 30 from Southwest Florida Intl. to Philadelphia Intl., returning Sun, Apr 5, priced at $129 found 2 days ago
Thu, Apr 9 - Sun, Apr 12
RSW
Southwest Florida Intl.
PHL
Philadelphia Intl.
$136 Roundtrip, found 5 hours ago
$136
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Thu, Apr 9 from Southwest Florida Intl. to Philadelphia Intl., returning Sun, Apr 12, priced at $136 found 5 hours ago
Thu, Apr 23 - Sun, Apr 26
RSW
Southwest Florida Intl.
PHL
Philadelphia Intl.
$141 Roundtrip, found 4 hours ago
$141
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Thu, Apr 23 from Southwest Florida Intl. to Philadelphia Intl., returning Sun, Apr 26, priced at $141 found 4 hours ago
Thu, Apr 30 - Mon, May 4
RSW
Southwest Florida Intl.
PHL
Philadelphia Intl.
$144 Roundtrip, found 4 hours ago
$144
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Thu, Apr 30 from Southwest Florida Intl. to Philadelphia Intl., returning Mon, May 4, priced at $144 found 4 hours ago
Fri, Apr 24 - Sun, Apr 26
RSW
Southwest Florida Intl.
PHL
Philadelphia Intl.
$147 Roundtrip, found 1 hour ago
$147
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Fri, Apr 24 from Southwest Florida Intl. to Philadelphia Intl., returning Sun, Apr 26, priced at $147 found 1 hour ago
Thu, May 21 - Tue, May 26
RSW
Southwest Florida Intl.
PHL
Philadelphia Intl.
$147 Roundtrip, found 1 hour ago
$147
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Thu, May 21 from Southwest Florida Intl. to Philadelphia Intl., returning Tue, May 26, priced at $147 found 1 hour ago