When did momondo last update prices for flights from Islip Long Island Airport to Portugal?

Prices for flights from Islip Long Island Airport to Portugal were last updated today.

How old do you have to be to fly from Islip Long Island Airport to Portugal?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Islip Long Island Airport to Portugal.

What documentation or ID do you need to fly to Portugal?

The required travel and health documents for your Portugal trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Portugal. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$1,044 Cheap Flights from Islip to Portugal in 2025

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Find the cheapest flights from Islip to Portugal

Round-trip

Cheap round-trip flights

4:33 pm - 5:35 amISP-LIS

32h 02m1 stop

6:45 pm - 10:37 amLIS-ISP

44h 52m2 stops

$1,182

Find Deal

lun., nov. 3 - lun., nov. 10

5:05 pm - 10:50 amISP-LIS

36h 45m2 stops

11:45 am - 10:58 amLIS-ISP

28h 13m1 stop

$1,236

Find Deal

vie., oct. 3 - vie., oct. 10

7:30 am - 5:00 pmISP-LIS

28h 30m3 stops

11:40 am - 8:01 pmLIS-ISP

13h 21m1 stop

$1,390

Find Deal

lun., nov. 3 - lun., nov. 10

2:19 pm - 5:35 amISP-LIS

10h 16m1 stop

11:40 am - 8:01 pmLIS-ISP

13h 21m1 stop

$1,454

Find Deal

lun., nov. 3 - lun., nov. 10

11:53 am - 9:00 pmISP-LIS

28h 07m3 stops

7:25 am - 8:01 pmLIS-ISP

17h 36m2 stops

$1,550

Find Deal

lun., nov. 3 - lun., nov. 10

2:19 pm - 9:50 pmISP-LIS

26h 31m2 stops

6:35 am - 10:58 amLIS-ISP

33h 23m3 stops

$1,638

Find Deal

vie., oct. 3 - vie., oct. 10

11:53 am - 4:45 pmISP-LIS

23h 52m3 stops

6:35 am - 10:58 amLIS-ISP

33h 23m3 stops

$1,677

Find Deal

vie., oct. 3 - vie., oct. 10

4:33 pm - 5:40 amISP-LIS

32h 07m1 stop

11:45 am - 10:58 amLIS-ISP

28h 13m1 stop

$1,692

Find Deal

vie., oct. 3 - vie., oct. 10

11:53 am - 5:40 amISP-LIS

12h 47m1 stop

6:35 am - 10:58 amLIS-ISP

33h 23m3 stops

$1,839

Find Deal

vie., oct. 3 - vie., oct. 10

Fly from

Fly to

Route

Depart

Return

Price

IslipLisbon

ISP - LIS

ISPLIS

Islip Long Island

lun. 11/3

4:33 pm-5:35 am

1 stop32h 02m

Lisbon Humberto Delgado

lun. 11/10

6:45 pm-10:37 am

2 stops44h 52m

$1,182

IslipLisbon

ISP - LIS

ISPLIS

Islip Long Island

vie. 10/3

5:05 pm-10:50 am

2 stops36h 45m

Lisbon Humberto Delgado

vie. 10/10

11:45 am-10:58 am

1 stop28h 13m

$1,236

IslipLisbon

ISP - LIS

ISPLIS

Islip Long Island

lun. 11/3

7:30 am-5:00 pm

3 stops28h 30m

Lisbon Humberto Delgado

lun. 11/10

11:40 am-8:01 pm

1 stop13h 21m

$1,390

IslipLisbon

ISP - LIS

ISPLIS

Islip Long Island

lun. 11/3

2:19 pm-5:35 am

1 stop10h 16m

Lisbon Humberto Delgado

lun. 11/10

11:40 am-8:01 pm

1 stop13h 21m

$1,454

IslipLisbon

ISP - LIS

ISPLIS

Islip Long Island

lun. 11/3

11:53 am-9:00 pm

3 stops28h 07m

Lisbon Humberto Delgado

lun. 11/10

7:25 am-8:01 pm

2 stops17h 36m

$1,550

IslipLisbon

ISP - LIS

ISPLIS

Islip Long Island

vie. 10/3

2:19 pm-9:50 pm

2 stops26h 31m

Lisbon Humberto Delgado

vie. 10/10

6:35 am-10:58 am

3 stops33h 23m

$1,638

IslipLisbon

ISP - LIS

ISPLIS

Islip Long Island

vie. 10/3

11:53 am-4:45 pm

3 stops23h 52m

Lisbon Humberto Delgado

vie. 10/10

6:35 am-10:58 am

3 stops33h 23m

$1,677

IslipLisbon

ISP - LIS

ISPLIS

Islip Long Island

vie. 10/3

4:33 pm-5:40 am

1 stop32h 07m

Lisbon Humberto Delgado

vie. 10/10

11:45 am-10:58 am

1 stop28h 13m

$1,692

IslipLisbon

ISP - LIS

ISPLIS

Islip Long Island

vie. 10/3

11:53 am-5:40 am

1 stop12h 47m

Lisbon Humberto Delgado

vie. 10/10

6:35 am-10:58 am

3 stops33h 23m

$1,839

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Islip to Portugal

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What airlines fly to Portugal?

TAP AIR PORTUGAL, United Airlines and Azores Airlines are the top three most popular airlines that fly to Portugal from Islip according to our data. TAP AIR PORTUGAL is the first choice among our users, with 68% of people opting to fly with this airline when traveling to Portugal. Keep in mind that there are 24 different airlines that fly to Portugal on a routine basis, so you have a few additional options to choose from.

Cheap Islip to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Islip to Portugal

Direct flights	None

There are no direct flights from Islip to Portugal. There are no popular flight routes from Islip to Portugal.

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When did momondo last update prices for flights from Islip Long Island Airport to Portugal?
Prices for flights from Islip Long Island Airport to Portugal were last updated today.
How old do you have to be to fly from Islip Long Island Airport to Portugal?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Islip Long Island Airport to Portugal.
What documentation or ID do you need to fly to Portugal?
The required travel and health documents for your Portugal trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Portugal. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Islip to Portugal?

It is quick and easy to find Islip to Portugal flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Portugal that suits you.

Can I find flights from Islip to Portugal with flexible booking policies on momondo?

All flight searches from Islip to Portugal on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Islip to Portugal?

momondo helps you find the best flight between Islip and Portugal by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Islip to Portugal right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Portugal, momondo offers a useful price alert feature which will track prices for flights to Portugal from Islip and alert you when they change.