$1,771 Find Cheap Flights from Islip to Portugal

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Islip to Portugal departing on 5/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Islip to Portugal

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Lisbon
Lisbon3 stops$1,803
Porto
Porto2 stops$1,771
Lisbon
Lisbon3 stops$1,803
Porto
Porto2 stops$1,771

Book Cheap Islip to Portugal Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Islip to Portugal that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Islip to Portugal

Fri, May 15 - Thu, May 21
Multiple Airlines Logo
7:25 am - 11:45 am
ISP
-
OPO
23h 20m
2 stops
Multiple Airlines Logo
5:20 pm - 7:45 pm
OPO
-
ISP
31h 25m
3 stops
$1,771Multiple Airlines
Thu, May 28 - Wed, Jun 10
Multiple Airlines Logo
12:30 pm - 10:40 pm
ISP
-
LIS
29h 10m
3 stops
Multiple Airlines Logo
12:00 pm - 7:45 pm
LIS
-
ISP
12h 45m
1 stop
$1,803Multiple Airlines
Thu, May 28 - Wed, Jun 10
Multiple Airlines Logo
12:30 pm - 6:30 am
ISP
-
LIS
37h 00m
2 stops
Multiple Airlines Logo
12:00 pm - 7:45 pm
LIS
-
ISP
12h 45m
1 stop
$1,804Multiple Airlines
Fri, May 15 - Thu, May 21
Multiple Airlines Logo
9:59 am - 11:45 am
ISP
-
OPO
20h 46m
2 stops
Multiple Airlines Logo
1:30 pm - 4:10 pm
OPO
-
ISP
31h 40m
2 stops
$1,817Multiple Airlines
Fri, May 15 - Thu, May 21
Multiple Airlines Logo
9:59 am - 10:20 am
ISP
-
LIS
19h 21m
1 stop
Multiple Airlines Logo
11:35 am - 10:05 am
LIS
-
ISP
51h 30m
2 stops
$1,863Multiple Airlines
Thu, Jun 11 - Thu, Jun 18
Multiple Airlines Logo
10:48 am - 11:20 am
ISP
-
LIS
43h 32m
2 stops
Multiple Airlines Logo
5:40 pm - 11:05 am
LIS
-
ISP
22h 25m
1 stop
$1,903Multiple Airlines
Sat, Jun 13 - Sat, Jun 20
Multiple Airlines Logo
7:25 am - 11:25 am
ISP
-
OPO
23h 00m
3 stops
Multiple Airlines Logo
1:30 pm - 7:45 pm
OPO
-
ISP
35h 15m
2 stops
$1,975Multiple Airlines
Sat, Jun 13 - Sat, Jun 20
Multiple Airlines Logo
12:30 pm - 7:00 pm
ISP
-
OPO
25h 30m
2 stops
Multiple Airlines Logo
1:30 pm - 4:10 pm
OPO
-
ISP
31h 40m
2 stops
$2,012Multiple Airlines
Sat, Jun 13 - Sat, Jun 20
Multiple Airlines Logo
10:48 am - 8:35 am
ISP
-
OPO
40h 47m
2 stops
Multiple Airlines Logo
5:40 pm - 11:05 am
OPO
-
ISP
22h 25m
1 stop
$2,030Multiple Airlines
Thu, May 28 - Wed, Jun 10
Multiple Airlines Logo
12:30 pm - 10:40 pm
ISP
-
LIS
29h 10m
3 stops
Multiple Airlines Logo
12:55 pm - 7:45 pm
LIS
-
ISP
35h 50m
2 stops
$2,127Multiple Airlines
Booking Insights

KAYAK's insights & trends for Islip to Portugal flights

Get data-powered insights and trends into flights from Islip to Portugal to help you find the cheapest flights, the best time to fly and much more.

How long does a flight from Islip to Portugal take?

The duration of a flight to Portugal depends on your arrival airport. The shortest routes to Portugal from Islip are to Lisbon, which takes 17h 10m, and Porto, which takes 23h 00m.

Find deals

Good to know

Cheapest flight$1,771
Flight from Islip to Porto

FAQs - booking Portugal flights

  • How does KAYAK find such low prices on flights from Islip to Portugal?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Islip to Portugal.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Islip to Portugal?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Islip to Portugal is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Islip to Portugal?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Islip to Portugal with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Islip to Portugal?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Islip to Portugal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Islip to Portugal

Information on your arrival and departure airports

Islip (ISP)