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

Prices for flights from Portland Airport to Islip Long Island Airport are refreshed on a daily basis.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to Islip Long Island Airport.

What documentation or ID do you need to fly to Islip Long Island Airport?

The travel and health documents required for your trip to Islip Long Island Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Islip Long Island Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$253 Cheap Flights from Portland to Islip in 2025/26

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0 bags

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Find the cheapest flights from Portland, Maine to New York

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Cheap round-trip flights

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11:16 am - 9:07 amPWM-ISP

21h 51m1 stop

11:03 am - 9:06 amISP-PWM

22h 03m1 stop

$253Multiple Airlines

Find Deal

Wed, Nov 19 - Sun, Nov 23

11:21 am - 9:07 amPWM-ISP

21h 46m2 stops

8:25 pm - 9:06 amISP-PWM

12h 41m1 stop

$266Multiple Airlines

Find Deal

Wed, Nov 19 - Sun, Nov 23

5:25 pm - 11:50 pmPWM-ISP

6h 25m1 stop

5:40 am - 11:10 amISP-PWM

5h 30m1 stop

$357Southwest

Find Deal

Thu, Dec 18 - Sun, Dec 21

5:25 pm - 11:50 pmPWM-ISP

6h 25m1 stop

1:35 pm - 12:05 amISP-PWM

10h 30m2 stops

$392Southwest

Find Deal

Thu, Dec 18 - Sun, Dec 21

5:30 am - 12:50 pmPWM-ISP

7h 20m1 stop

5:40 am - 11:10 amISP-PWM

5h 30m1 stop

$408Southwest

Find Deal

Sun, Nov 23 - Tue, Nov 25

5:30 am - 12:50 pmPWM-ISP

7h 20m1 stop

1:35 pm - 12:05 amISP-PWM

10h 30m2 stops

$414Southwest

Find Deal

Sun, Nov 23 - Tue, Nov 25

6:29 pm - 8:05 pmPWM-ISP

25h 36m1 stop

6:00 am - 5:38 pmISP-PWM

11h 38m1 stop

$516Multiple Airlines

Find Deal

Tue, Nov 18 - Sat, Nov 22

6:18 pm - 11:00 amPWM-ISP

16h 42m2 stops

7:36 pm - 5:25 pmISP-PWM

21h 49m2 stops

$623Breeze Airways

Find Deal

Wed, Nov 19 - Sun, Nov 23

6:18 pm - 11:15 amPWM-ISP

16h 57m2 stops

7:35 pm - 10:21 amISP-PWM

14h 46m1 stop

$630Breeze Airways

Find Deal

Wed, Feb 25 - Sat, Feb 28

11:16 am - 6:56 pmPWM-ISP

31h 40m3 stops

11:40 am - 9:06 amISP-PWM

21h 26m2 stops

$708Breeze Airways

Find Deal

Wed, Nov 19 - Sun, Nov 23

Southwest flights from Portland, Maine to Islip, New York

Our best Southwest deals on Portland, Maine to Islip, New York flight tickets

Southwest

Dec 18

PWM5:25 pmPortland

6h 25m

1 stop

ISP11:50 pmIslip Long Island

Dec 21

ISP5:40 amIslip Long Island

5h 30m

1 stop

PWM11:10 amPortland

$357

Find similar

Southwest

Dec 18

PWM5:25 pmPortland

6h 25m

1 stop

ISP11:50 pmIslip Long Island

Dec 21

ISP1:35 pmIslip Long Island

10h 30m

2 stops

PWM12:05 amPortland

$392

Find similar

Southwest

Nov 23

PWM5:30 amPortland

7h 20m

1 stop

ISP12:50 pmIslip Long Island

Nov 25

ISP5:40 amIslip Long Island

5h 30m

1 stop

PWM11:10 amPortland

$408

Find similar

Breeze Airways flights from Portland, Maine to Islip, New York

Our best Breeze Airways deals on Portland, Maine to Islip, New York flight tickets

Breeze Airways

Nov 19

PWM6:18 pmPortland

16h 42m

2 stops

ISP11:00 amIslip Long Island

Nov 23

ISP7:36 pmIslip Long Island

21h 49m

2 stops

PWM5:25 pmPortland

$623

Find similar

Breeze Airways

Feb 25

PWM6:18 pmPortland

16h 57m

2 stops

ISP11:15 amIslip Long Island

Feb 28

ISP7:35 pmIslip Long Island

14h 46m

1 stop

PWM10:21 amPortland

$630

Find similar

Breeze Airways

Nov 19

PWM11:16 amPortland

31h 40m

3 stops

ISP6:56 pmIslip Long Island

Nov 23

ISP11:40 amIslip Long Island

21h 26m

2 stops

PWM9:06 amPortland

$708

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Portland, Maine to Islip, New York that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandIslip

PWM - ISP

PWMISP

Portland

Wed 11/19

11:16 am-9:07 am

1 stop21h 51m

Islip Long Island

Sun 11/23

11:03 am-9:06 am

1 stop22h 03m

$253

PortlandIslip

PWM - ISP

PWMISP

Portland

Wed 11/19

11:21 am-9:07 am

2 stops21h 46m

Islip Long Island

Sun 11/23

8:25 pm-9:06 am

1 stop12h 41m

$266

PortlandIslip

PWM - ISP

PWMISP

Portland

Thu 12/18

5:25 pm-11:50 pm

1 stop6h 25m

Islip Long Island

Sun 12/21

5:40 am-11:10 am

1 stop5h 30m

$357

PortlandIslip

PWM - ISP

PWMISP

Portland

Thu 12/18

5:25 pm-11:50 pm

1 stop6h 25m

Islip Long Island

Sun 12/21

1:35 pm-12:05 am

2 stops10h 30m

$392

PortlandIslip

PWM - ISP

PWMISP

Portland

Sun 11/23

5:30 am-12:50 pm

1 stop7h 20m

Islip Long Island

Tue 11/25

5:40 am-11:10 am

1 stop5h 30m

$408

PortlandIslip

PWM - ISP

PWMISP

Portland

Sun 11/23

5:30 am-12:50 pm

1 stop7h 20m

Islip Long Island

Tue 11/25

1:35 pm-12:05 am

2 stops10h 30m

$414

PortlandIslip

PWM - ISP

PWMISP

Portland

Tue 11/18

6:29 pm-8:05 pm

1 stop25h 36m

Islip Long Island

Sat 11/22

6:00 am-5:38 pm

1 stop11h 38m

$516

PortlandIslip

PWM - ISP

PWMISP

Portland

Wed 11/19

6:18 pm-11:00 am

2 stops16h 42m

Islip Long Island

Sun 11/23

7:36 pm-5:25 pm

2 stops21h 49m

$623

PortlandIslip

PWM - ISP

PWMISP

Portland

Wed 2/25

6:18 pm-11:15 am

2 stops16h 57m

Islip Long Island

Sat 2/28

7:35 pm-10:21 am

1 stop14h 46m

$630

PortlandIslip

PWM - ISP

PWMISP

Portland

Wed 11/19

11:16 am-6:56 pm

3 stops31h 40m

Islip Long Island

Sun 11/23

11:40 am-9:06 am

2 stops21h 26m

$708

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Portland, Maine to Islip, New York

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 Islip, New York?

United Airlines, Delta and JetBlue are the top three most popular airlines that fly to Islip, New York from Portland, Maine according to our data. United Airlines is the first choice among our users, with 35% of people opting to fly with this airline when traveling to Islip, New York. Keep in mind that there are 7 different airlines that fly to Islip, New York on a routine basis, so you have a few additional options to choose from.

When to book flights from Portland, Maine to Islip, New York

Are you open to changing your travel dates? Check out the ideal times to fly from Portland, Maine to Islip, New York according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Portland, Maine to Islip, New York (PWM to ISP) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland, Maine to Islip, New York

Direct flights	None

There are no direct flights from Portland, Maine to Islip, New York. There are no popular flight routes from Portland, Maine to Islip, New York.

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How far is Portland to Islip Long Island by plane?
The distance between Portland and Islip Long Island is about 252.6 mi. A reasonable flight in good conditions will take 6h 25m.
When did momondo last update prices for flights from Portland Airport to Islip Long Island Airport?
Prices for flights from Portland Airport to Islip Long Island Airport are refreshed on a daily basis.
How old do you have to be to fly from Portland Airport to Islip Long Island Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to Islip Long Island Airport.
What documentation or ID do you need to fly to Islip Long Island Airport?
The travel and health documents required for your trip to Islip Long Island Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Islip Long Island Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Portland, Maine to Islip, New York?
momondo data reveals that the most frequently booked plane model on the route from Portland, Maine to Islip, New York is Embraer 195, representing 28.57% of all bookings. The subsequent popular models are Embraer 175 (Enhanced Winglets) at 14.29%, Embraer 190 at 14.29%, and Airbus A220-300 at 14.29%.

Montauk

Riverhead

Sag Harbor

Southampton

Amagansett

Why use momondo?

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

It is quick and easy to find Portland to Islip 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 Islip that suits you.

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

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

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Portland to Islip.

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

Yes momondo offers price alerts on flights to Islip from Portland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.