How many flights depart from Islip to New Hampshire on average per week?

As of September 2025, there are 27 flights per week flying from Islip to New Hampshire. The most common day of the week flights depart is Mon, with 15% of flights taking off on this day.

What airlines fly to New Hampshire?

United Airlines, JetBlue and American Airlines are the top three most popular airlines that fly to New Hampshire from Islip according to our data. United Airlines is the first choice among our users, with 80% of people opting to fly with this airline when traveling to New Hampshire. Keep in mind that there are 3 different airlines that fly to New Hampshire on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Islip Long Island to New Hampshire?

JetBlue, Southwest, and Frontier are the most popular carriers operating from Islip Long Island to New Hampshire

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

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

How many operators does momondo search for flights from Islip Long Island Airport to New Hampshire?

As of September 2025, there are 3 operators available to choose from for flights from Islip Long Island Airport to New Hampshire.

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

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 Islip Long Island Airport to New Hampshire.

What documentation or ID do you need to fly to New Hampshire?

The travel and health documents required for your trip to New Hampshire 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 New Hampshire. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$121 Cheap Flights from Islip to New Hampshire in 2025/26

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Find the cheapest flights from Islip to New Hampshire

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

9:37 pm - 1:20 pmISP-BOS

15h 43m1 stop

2:15 pm - 10:37 amBOS-ISP

20h 22m1 stop

$268Multiple Airlines

Find Deal

Tue, Oct 21 - Tue, Oct 28

9:37 pm - 1:20 pmISP-BOS

15h 43m1 stop

3:00 pm - 1:39 pmBOS-ISP

46h 39m2 stops

$278Multiple Airlines

Find Deal

Tue, Oct 21 - Tue, Oct 28

9:37 pm - 1:20 pmISP-BOS

15h 43m1 stop

2:15 pm - 10:37 amBOS-ISP

20h 22m1 stop

$282Multiple Airlines

Find Deal

Tue, Oct 21 - Tue, Oct 28

9:37 pm - 11:26 amISP-BOS

13h 49m2 stops

2:15 pm - 10:37 amBOS-ISP

20h 22m1 stop

$291Multiple Airlines

Find Deal

Thu, Oct 23 - Thu, Oct 30

11:05 am - 5:15 pmISP-BOS

6h 10m1 stop

8:50 am - 12:50 pmBOS-ISP

4h 00m1 stop

$327Southwest

Find Deal

Fri, Nov 7 - Mon, Nov 10

12:55 pm - 7:05 pmISP-MHT

6h 10m1 stop

3:30 pm - 9:45 pmMHT-ISP

6h 15m1 stop

$327Southwest

Find Deal

Wed, Nov 12 - Sat, Nov 15

8:45 pm - 5:00 pmISP-PWM

20h 15m1 stop

5:40 pm - 6:28 pmPWM-ISP

24h 48m1 stop

$402Breeze Airways

Find Deal

Sat, Oct 11 - Sun, Oct 19

10:38 am - 10:41 amISP-PWM

24h 03m2 stops

7:37 pm - 6:56 pmPWM-ISP

23h 19m1 stop

$435Breeze Airways

Find Deal

Tue, Oct 7 - Sat, Oct 11

12:40 pm - 2:14 pmISP-BOS

1h 34mnonstop

9:29 am - 11:04 amBOS-ISP

1h 35mnonstop

$502Cape Air

Find Deal

Tue, Oct 21 - Tue, Oct 28

9:59 am - 11:24 amISP-BOS

1h 25mnonstop

6:19 pm - 7:45 pmBOS-ISP

1h 26mnonstop

$504Cape Air

Find Deal

Mon, Dec 15 - Tue, Dec 16

Southwest flights from Islip to New Hampshire

Our best Southwest deals on Islip to New Hampshire flight tickets

Southwest

Nov 7

ISP11:05 amIslip Long Island

6h 10m

1 stop

BOS5:15 pmBoston Logan Intl

Nov 10

BOS8:50 amBoston Logan Intl

4h 00m

1 stop

ISP12:50 pmIslip Long Island

$327

Find similar

Southwest

Oct 24

ISP5:35 pmIslip Long Island

6h 20m

1 stop

BOS11:55 pmBoston Logan Intl

Oct 25

BOS10:10 amBoston Logan Intl

10h 00m

2 stops

ISP8:10 pmIslip Long Island

$332

Find similar

Southwest

Dec 3

ISP5:40 amIslip Long Island

11h 05m

2 stops

BOS4:45 pmBoston Logan Intl

Dec 4

BOS5:30 amBoston Logan Intl

9h 50m

2 stops

ISP3:20 pmIslip Long Island

$337

Find similar

Cape Air flights from Islip to New Hampshire

Our best Cape Air deals on Islip to New Hampshire flight tickets

Cape Air

Sep 30

ISP7:30 amIslip Long Island

1h 27m

BOS8:57 amBoston Logan Intl

Sep 30

BOS11:53 amBoston Logan Intl

1h 31m

ISP1:24 pmIslip Long Island

$501

Find similar

Cape Air

Oct 21

ISP12:40 pmIslip Long Island

1h 34m

BOS2:14 pmBoston Logan Intl

Oct 28

BOS9:29 amBoston Logan Intl

1h 35m

ISP11:04 amIslip Long Island

$502

Find similar

Cape Air

Dec 15

ISP9:59 amIslip Long Island

1h 25m

BOS11:24 amBoston Logan Intl

Dec 16

BOS6:19 pmBoston Logan Intl

1h 26m

ISP7:45 pmIslip Long Island

$504

Find similar

Fly from

Fly to

Route

Depart

Return

Price

IslipBoston

ISP - BOS

ISPBOS

Islip Long Island

Tue 10/21

9:37 pm-1:20 pm

1 stop15h 43m

Boston Logan Intl

Tue 10/28

2:15 pm-10:37 am

1 stop20h 22m

$268

IslipBoston

ISP - BOS

ISPBOS

Islip Long Island

Tue 10/21

9:37 pm-1:20 pm

1 stop15h 43m

Boston Logan Intl

Tue 10/28

3:00 pm-1:39 pm

2 stops46h 39m

$278

IslipBoston

ISP - BOS

ISPBOS

Islip Long Island

Tue 10/21

9:37 pm-1:20 pm

1 stop15h 43m

Boston Logan Intl

Tue 10/28

2:15 pm-10:37 am

1 stop20h 22m

$282

IslipBoston

ISP - BOS

ISPBOS

Islip Long Island

Thu 10/23

9:37 pm-11:26 am

2 stops13h 49m

Boston Logan Intl

Thu 10/30

2:15 pm-10:37 am

1 stop20h 22m

$291

IslipBoston

ISP - BOS

ISPBOS

Islip Long Island

Fri 11/7

11:05 am-5:15 pm

1 stop6h 10m

Boston Logan Intl

Mon 11/10

8:50 am-12:50 pm

1 stop4h 00m

$327

IslipManchester

ISP - MHT

ISPMHT

Islip Long Island

Wed 11/12

12:55 pm-7:05 pm

1 stop6h 10m

Manchester

Sat 11/15

3:30 pm-9:45 pm

1 stop6h 15m

$327

IslipPortland

ISP - PWM

ISPPWM

Islip Long Island

Sat 10/11

8:45 pm-5:00 pm

1 stop20h 15m

Portland

Sun 10/19

5:40 pm-6:28 pm

1 stop24h 48m

$402

IslipPortland

ISP - PWM

ISPPWM

Islip Long Island

Tue 10/7

10:38 am-10:41 am

2 stops24h 03m

Portland

Sat 10/11

7:37 pm-6:56 pm

1 stop23h 19m

$435

IslipBoston

ISP - BOS

ISPBOS

Islip Long Island

Tue 10/21

12:40 pm-2:14 pm

Nonstop1h 34m

Boston Logan Intl

Tue 10/28

9:29 am-11:04 am

Nonstop1h 35m

$502

IslipBoston

ISP - BOS

ISPBOS

Islip Long Island

Mon 12/15

9:59 am-11:24 am

Nonstop1h 25m

Boston Logan Intl

Tue 12/16

6:19 pm-7:45 pm

Nonstop1h 26m

$504

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How to get the cheapest flight ticket from Islip to New Hampshire

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

Prices

Airlines

Other information

What is the cheapest month to fly to New Hampshire?

The month of June is another great option to travel to New Hampshire, with average flight prices from Islip averaging around $238.

What is the cheapest day to depart on your flight to New Hampshire?

The cheapest day to depart on your flight to New Hampshire is on a Saturday when prices can be found for as low as $157. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to New Hampshire is Thursday, with ticket prices averaging around $501.

What is the cheapest time of day to depart on your flight to New Hampshire?

According to our data, the cheapest time of day to fly to New Hampshire is in the morning. momondo users have found flights departing from Islip to New Hampshire in the morning for as low as $207. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets at noon because they tend to be around $520. Of course, these prices can vary depending on the time of year and what airport you fly to.

Cheap Islip to New Hampshire flight deals and tips

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

Fastest flight time	1h 25m
Direct flights	Tue, Wed, Thu, Fri and Sat
Airports in New Hampshire	1 airport

The fastest flight from Islip to New Hampshire takes 1h 25m

Direct flights go from Islip to New Hampshire on Tuesday, Wednesday, Thursday, Friday and Saturday. There are no airlines offering direct flights.

There is 1 airport near New Hampshire: Boston Logan Intl (BOS)

Search flight deals

When did momondo last update prices for flights from Islip Long Island Airport to New Hampshire?
Prices for flights from Islip Long Island Airport to New Hampshire were last updated today.
How many operators does momondo search for flights from Islip Long Island Airport to New Hampshire?
As of September 2025, there are 3 operators available to choose from for flights from Islip Long Island Airport to New Hampshire.
How old do you have to be to fly from Islip Long Island Airport to New Hampshire?
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 Islip Long Island Airport to New Hampshire.
What documentation or ID do you need to fly to New Hampshire?
The travel and health documents required for your trip to New Hampshire 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 New Hampshire. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Islip to New Hampshire for you.

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

Flights from Islip to New Hampshire with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Islip to New Hampshire?

Once all potential Islip to New Hampshire flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from Islip to New Hampshire now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to New Hampshire and let you know when they change.

An easier way to manage your New Hampshire trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Find better results for your trip to New Hampshire

Popular cities in New Hampshire

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Cheap flights from Islip to New Hampshire from $121

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Islip to New Hampshire departing on 11/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Filter for what you want

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Southwest flights from Islip to New Hampshire

Our best Southwest deals on Islip to New Hampshire flight tickets

Cape Air flights from Islip to New Hampshire

Our best Cape Air deals on Islip to New Hampshire flight tickets

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Use the filters below to find and compare flights from Islip to New Hampshire that are best for you.

See travel insights to New Hampshire from

How to get the cheapest flight ticket from Islip to New Hampshire

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 is the cheapest month to fly to New Hampshire?

The month of June is another great option to travel to New Hampshire, with average flight prices from Islip averaging around $238.

What is the cheapest day to depart on your flight to New Hampshire?

What is the cheapest time of day to depart on your flight to New Hampshire?

What is the cheapest airline that flies from Islip Long Island to New Hampshire?

JetBlue, Southwest, and Frontier are the most popular carriers operating from Islip Long Island to New Hampshire

What airlines fly to New Hampshire?

How many flights depart from Islip to New Hampshire on average per week?

As of September 2025, there are 27 flights per week flying from Islip to New Hampshire. The most common day of the week flights depart is Mon, with 15% of flights taking off on this day.

Cheap Islip to New Hampshire flight deals and tips

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

Fastest flight time

Direct flights

Airports in New Hampshire

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

How many operators does momondo search for flights from Islip Long Island Airport to New Hampshire?

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

What documentation or ID do you need to fly to New Hampshire?

Why use momondo?

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

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

How can momondo help me find flights from Islip to New Hampshire?

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

An easier way to manage your New Hampshire trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to New Hampshire

Popular cities in New Hampshire

Popular flights according to clicks in the last 7 days on momondo