Find Deals on Flights from Islip Long Island to Porto (ISP - OPO)

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from Islip Long Island to Porto

(Round-trip)
Depart: Fri Apr 21 2017 Return: Fri Apr 28 2017 Trip spans 8 days
$1323
Select
American Airlines
American Airlines
ISP
9:10a
OPO
2:45a
17h 35m
2 stops
OPO
4:05a
ISP
11:01p
18h 56m
2 stops
Depart: Fri May 26 2017 Return: Mon Jun 5 2017 Trip spans 11 days
$1329
Select
American Airlines
American Airlines
ISP
9:07a
OPO
2:45a
17h 38m
2 stops
OPO
4:05a
ISP
10:55p
18h 50m
2 stops
Depart: Wed May 24 2017 Return: Mon May 29 2017 Trip spans 6 days
$1359
Select
American Airlines
American Airlines
ISP
9:07a
OPO
2:45a
17h 38m
2 stops
OPO
4:05a
ISP
11:02p
18h 57m
2 stops
Depart: Fri Jul 14 2017 Return: Tue Aug 1 2017 Trip spans 19 days
$1379
Select
American Airlines
American Airlines
ISP
9:10a
OPO
2:45a
17h 35m
2 stops
OPO
4:35a
ISP
10:55p
18h 20m
2 stops
Depart: Fri Jun 16 2017 Return: Sun Jul 2 2017 Trip spans 17 days
$1489
Select
American Airlines
American Airlines
ISP
9:10a
OPO
2:45a
17h 35m
2 stops
OPO
4:05a
ISP
10:55p
18h 50m
2 stops
Depart: Fri Jul 28 2017 Return: Sun Aug 13 2017 Trip spans 17 days
$1489
Select
American Airlines
American Airlines
ISP
9:10a
OPO
2:45a
17h 35m
2 stops
OPO
4:05a
ISP
10:55p
18h 50m
2 stops
Depart: Thu May 25 2017 Return: Tue May 30 2017 Trip spans 6 days
$1519
Select
American Airlines
American Airlines
ISP
9:07a
OPO
2:45a
17h 38m
2 stops
OPO
4:05a
ISP
11:02p
18h 57m
2 stops
Depart: Fri Jun 30 2017 Return: Tue Jul 4 2017 Trip spans 5 days
$1579
Select
American Airlines
American Airlines
ISP
9:10a
OPO
2:45a
17h 35m
2 stops
OPO
4:05a
ISP
10:55p
18h 50m
2 stops
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

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Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

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Airports
Origin

Islip
$1323
Destination

Porto
$1323