Find Cheap Flights from Islip Long Island to Portugal

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Sat 11/25
Sat 12/2
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Book cheap flights from Islip Long Island to Portugal (round-trip)

Airports
Origin
Islip
$700
only
$700
Destination
Porto
$1916
only
$1916
Lisbon
$700
only
$700
Sat, May 26
ISP
LIS
9h 55m
Sat, Jun 2
LIS
ISP
14h 40m
Trip: 8 days
Overall null null
Based on null reviews
Tue, Mar 27
ISP
LIS
34h 15m
Tue, Apr 3
LIS
ISP
15h 57m
Trip: 8 days
Overall null null
Based on null reviews
Mon, Dec 25
ISP
OPO
17h 30m
Mon, Jan 1
OPO
ISP
18h 48m
$1916
Trip: 8 days
Overall null null
Based on null reviews
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