Cheapest flights from Allentown
These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Mon, May 6 - Wed, May 8
PHL
Philadelphia Intl.
IAH
George Bush Intercontinental
$97 Roundtrip, found 3 days ago
$97
Roundtrip
found 3 days ago
Sun, May 26 - Wed, May 29
PHL
Philadelphia Intl.
IAH
George Bush Intercontinental
$109 Roundtrip, found 2 days ago
$109
Roundtrip
found 2 days ago
Tue, May 21 - Wed, May 22
PHL
Philadelphia Intl.
IAH
George Bush Intercontinental
$118 Roundtrip, found 4 days ago
$118
Roundtrip
found 4 days ago
Mon, May 6 - Wed, May 8
PHL
Philadelphia Intl.
IAH
George Bush Intercontinental
$122 Roundtrip, found 3 days ago
$122
Roundtrip
found 3 days ago
Mon, May 6 - Wed, May 8
PHL
Philadelphia Intl.
IAH
George Bush Intercontinental
$126 Roundtrip, found 3 days ago
$126
Roundtrip
found 3 days ago
Sat, May 4 - Tue, May 7
PHL
Philadelphia Intl.
IAH
George Bush Intercontinental
$128 Roundtrip, found 3 days ago
$128
Roundtrip
found 3 days ago
Mon, May 6 - Wed, May 8
PHL
Philadelphia Intl.
IAH
George Bush Intercontinental
$131 Roundtrip, found 3 days ago
$131
Roundtrip
found 3 days ago
Sun, May 26 - Thu, May 30
PHL
Philadelphia Intl.
IAH
George Bush Intercontinental
$133 Roundtrip, found 2 days ago
$133
Roundtrip
found 2 days ago
Fri, May 3 - Sat, May 4
PHL
Philadelphia Intl.
IAH
George Bush Intercontinental
$134 Roundtrip, found 3 days ago
$134
Roundtrip
found 3 days ago
Tue, May 21 - Wed, May 22
PHL
Philadelphia Intl.
IAH
George Bush Intercontinental
$139 Roundtrip, found 4 days ago
$139
Roundtrip
found 4 days ago
Mon, May 6 - Wed, May 8
PHL
Philadelphia Intl.
IAH
George Bush Intercontinental
$141 Roundtrip, found 3 days ago
$141
Roundtrip
found 3 days ago
Tue, May 21 - Wed, May 22
PHL
Philadelphia Intl.
IAH
George Bush Intercontinental
$144 Roundtrip, found 4 days ago
$144
Roundtrip
found 4 days ago
Sun, May 5 - Mon, May 13
PHL
Philadelphia Intl.
IAH
George Bush Intercontinental
$144 Roundtrip, found 3 days ago
$144
Roundtrip
found 3 days ago
Mon, May 6 - Wed, May 8
PHL
Philadelphia Intl.
IAH
George Bush Intercontinental
$146 Roundtrip, found 3 days ago
$146
Roundtrip
found 3 days ago
Fri, May 3 - Fri, May 3
PHL
Philadelphia Intl.
IAH
George Bush Intercontinental
$148 Roundtrip, found 3 days ago
$148
Roundtrip
found 3 days ago
Fri, May 17 - Tue, May 21
TTN
Mercer
IAH
George Bush Intercontinental
$152 Roundtrip, found 6 days ago
$152
Roundtrip
found 6 days ago
Tue, May 21 - Wed, May 22
PHL
Philadelphia Intl.
IAH
George Bush Intercontinental
$198 Roundtrip, found 4 days ago
$198
Roundtrip
found 4 days ago
Tue, May 21 - Wed, May 22
PHL
Philadelphia Intl.
IAH
George Bush Intercontinental
$218 Roundtrip, found 4 days ago
$218
Roundtrip
found 4 days ago
Tue, May 21 - Wed, May 22
PHL
Philadelphia Intl.
IAH
George Bush Intercontinental
$337 Roundtrip, found 4 days ago
$337
Roundtrip
found 4 days ago
Mon, May 6 - Wed, May 8
PHL
Philadelphia Intl.
HOU
William P. Hobby
$508 Roundtrip, found 3 days ago
$508
Roundtrip
found 3 days ago