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

As of August 2026, there are 11 flights per week flying from Islip, New York to New Hampshire. The most common day of the week flights depart is Fri, with 36% of flights taking off on this day.

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

Southwest, JetBlue, and Breeze Airways 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 August 2026, there is 1 operator 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.

$117 Cheap Flights from Islip, New York to New Hampshire in 2026

Find the cheapest flights from Islip, New York to New Hampshire

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:50 pm - 5:10 pmISP Islip Long Island-BOS Boston Logan Intl

4h 20m1 stop Baltimore/Washington

5:35 am - 11:45 amBOS Boston Logan Intl-ISP Islip Long Island

6h 10m1 stop Baltimore/Washington

$234Southwest

Tue, Oct 27 - Thu, Oct 29

3:10 pm - 7:15 pmISP Islip Long Island-BOS Boston Logan Intl

4h 05m1 stop Baltimore/Washington

6:30 pm - 10:35 pmBOS Boston Logan Intl-ISP Islip Long Island

4h 05m1 stop Baltimore/Washington

$234Southwest

Mon, Oct 19 - Tue, Oct 20

6:10 am - 9:40 amISP Islip Long Island-MHT Manchester

3h 30m1 stop Baltimore/Washington

5:35 am - 12:10 pmMHT Manchester-ISP Islip Long Island

6h 35m1 stop Baltimore/Washington

$234Southwest

Thu, Sep 10 - Wed, Sep 16

6:05 am - 4:45 pmISP Islip Long Island-BOS Boston Logan Intl

10h 40m2 stops Baltimore/Washington Nashville Intl

5:10 pm - 11:35 pmBOS Boston Logan Intl-ISP Islip Long Island

6h 25m1 stop Baltimore/Washington

$240Southwest

Tue, Oct 27 - Thu, Oct 29

12:35 pm - 9:55 pmISP Islip Long Island-MHT Manchester

9h 20m2 stops Baltimore/Washington Orlando

5:35 am - 12:10 pmMHT Manchester-ISP Islip Long Island

6h 35m1 stop Baltimore/Washington

$240Southwest

Thu, Sep 10 - Wed, Sep 16

6:05 am - 4:45 pmISP Islip Long Island-BOS Boston Logan Intl

10h 40m2 stops Baltimore/Washington Nashville Intl

7:05 am - 5:00 pmBOS Boston Logan Intl-ISP Islip Long Island

9h 55m2 stops Chicago Midway Baltimore/Washington

$245Southwest

Tue, Oct 27 - Thu, Oct 29

10:55 am - 4:00 pmISP Islip Long Island-BOS Boston Logan Intl

5h 05m1 stop Baltimore/Washington

5:50 am - 9:40 amBOS Boston Logan Intl-ISP Islip Long Island

3h 50m1 stop Baltimore/Washington

$246Southwest

Wed, Sep 2 - Thu, Sep 24

3:20 pm - 9:30 pmISP Islip Long Island-BOS Boston Logan Intl

6h 10m1 stop Baltimore/Washington

5:25 am - 10:15 amBOS Boston Logan Intl-ISP Islip Long Island

4h 50m1 stop Baltimore/Washington

$246Southwest

Wed, Sep 9 - Wed, Sep 16

9:59 am - 11:24 amISP Islip Long Island-BOS Boston Logan Intl

1h 25mnonstop

6:19 pm - 7:45 pmBOS Boston Logan Intl-ISP Islip Long Island

1h 26mnonstop

$491Cape Air

Fri, Oct 16 - Sun, Oct 18

10:05 am - 11:30 amISP Islip Long Island-BOS Boston Logan Intl

1h 25mnonstop

7:24 pm - 8:59 pmBOS Boston Logan Intl-ISP Islip Long Island

1h 35mnonstop

$491Cape Air

Tue, Sep 15 - Fri, Sep 18

Cheap last minute flights

Enter your travel dates to find the best prices.

7:31 am - 8:56 amISP Islip Long Island-BOS Boston Logan Intl

1h 25mnonstop

10:55 am - 12:30 pmBOS Boston Logan Intl-ISP Islip Long Island

1h 35mnonstop

$493Cape Air

Thu, Aug 20 - Sun, Aug 23

10:05 am - 11:30 amISP Islip Long Island-BOS Boston Logan Intl

1h 25mnonstop

12:45 pm - 5:29 pmBOS Boston Logan Intl-ISP Islip Long Island

28h 44m3 stops Atlanta Hartsfield-Jackson Tampa Myrtle Beach Intl

$535Multiple Airlines

Wed, Aug 19 - Fri, Aug 21

10:05 am - 11:30 amISP Islip Long Island-BOS Boston Logan Intl

1h 25mnonstop

12:45 pm - 6:06 pmBOS Boston Logan Intl-ISP Islip Long Island

29h 21m3 stops Atlanta Hartsfield-Jackson Tampa Richmond Byrd Intl

$551Multiple Airlines

Wed, Aug 19 - Wed, Aug 26

10:05 am - 11:30 amISP Islip Long Island-BOS Boston Logan Intl

1h 25mnonstop

9:21 am - 10:56 amBOS Boston Logan Intl-ISP Islip Long Island

1h 35mnonstop

$559Cape Air

Wed, Aug 19 - Wed, Aug 26

10:55 am - 2:40 pmISP Islip Long Island-BOS Boston Logan Intl

3h 45m1 stop Baltimore/Washington

8:15 am - 12:10 pmBOS Boston Logan Intl-ISP Islip Long Island

3h 55m1 stop Baltimore/Washington

$564Southwest

Wed, Aug 19 - Wed, Aug 26

10:20 am - 2:30 pmISP Islip Long Island-BOS Boston Logan Intl

4h 10m1 stop Baltimore/Washington

5:50 am - 9:40 amBOS Boston Logan Intl-ISP Islip Long Island

3h 50m1 stop Baltimore/Washington

$564Southwest

Mon, Aug 17 - Mon, Aug 24

10:05 am - 11:30 amISP Islip Long Island-BOS Boston Logan Intl

1h 25mnonstop

1:40 pm - 9:05 amBOS Boston Logan Intl-ISP Islip Long Island

19h 25m1 stop Orlando

$571Multiple Airlines

Wed, Aug 19 - Wed, Aug 26

7:31 am - 8:56 amISP Islip Long Island-BOS Boston Logan Intl

1h 25mnonstop

12:45 pm - 5:29 pmBOS Boston Logan Intl-ISP Islip Long Island

28h 44m3 stops Raleigh-Durham Tampa Myrtle Beach Intl

$586Multiple Airlines

Thu, Aug 20 - Fri, Aug 21

10:05 am - 11:30 amISP Islip Long Island-BOS Boston Logan Intl

1h 25mnonstop

7:24 pm - 8:59 pmBOS Boston Logan Intl-ISP Islip Long Island

1h 35mnonstop

$590Cape Air

Wed, Aug 19 - Fri, Aug 21

6:10 am - 9:50 amISP Islip Long Island-BOS Boston Logan Intl

3h 40m1 stop Baltimore/Washington

5:30 pm - 10:05 pmBOS Boston Logan Intl-ISP Islip Long Island

4h 35m1 stop Baltimore/Washington

$599Southwest

Thu, Aug 20 - Fri, Aug 21

Cheap direct flights

Enter your travel dates to find the best prices.

9:59 am - 11:24 amISP Islip Long Island-BOS Boston Logan Intl

1h 25mnonstop

6:19 pm - 7:45 pmBOS Boston Logan Intl-ISP Islip Long Island

1h 26mnonstop

$491Cape Air

Fri, Oct 16 - Sun, Oct 18

10:05 am - 11:30 amISP Islip Long Island-BOS Boston Logan Intl

1h 25mnonstop

7:24 pm - 8:59 pmBOS Boston Logan Intl-ISP Islip Long Island

1h 35mnonstop

$491Cape Air

Tue, Sep 15 - Fri, Sep 18

9:59 am - 11:24 amISP Islip Long Island-BOS Boston Logan Intl

1h 25mnonstop

9:30 am - 11:05 amBOS Boston Logan Intl-ISP Islip Long Island

1h 35mnonstop

$497Cape Air

Fri, Oct 23 - Sun, Oct 25

7:25 am - 8:59 amISP Islip Long Island-BOS Boston Logan Intl

1h 34mnonstop

6:19 pm - 7:45 pmBOS Boston Logan Intl-ISP Islip Long Island

1h 26mnonstop

$498Cape Air

Fri, Oct 23 - Sun, Oct 25

7:31 am - 8:56 amISP Islip Long Island-BOS Boston Logan Intl

1h 25mnonstop

9:21 am - 10:56 amBOS Boston Logan Intl-ISP Islip Long Island

1h 35mnonstop

$499Cape Air

Mon, Sep 21 - Thu, Sep 24

2:16 pm - 3:41 pmISP Islip Long Island-BOS Boston Logan Intl

1h 25mnonstop

9:21 am - 10:56 amBOS Boston Logan Intl-ISP Islip Long Island

1h 35mnonstop

$499Cape Air

Wed, Sep 2 - Thu, Sep 24

7:31 am - 8:56 amISP Islip Long Island-BOS Boston Logan Intl

1h 25mnonstop

6:40 pm - 8:15 pmBOS Boston Logan Intl-ISP Islip Long Island

1h 35mnonstop

$499Cape Air

Mon, Sep 7 - Mon, Sep 14

11:53 am - 1:20 pmISP Islip Long Island-BOS Boston Logan Intl

1h 27mnonstop

6:30 pm - 8:01 pmBOS Boston Logan Intl-ISP Islip Long Island

1h 31mnonstop

$499Cape Air

Fri, Nov 6 - Sun, Nov 8

9:59 am - 11:24 amISP Islip Long Island-BOS Boston Logan Intl

1h 25mnonstop

6:19 pm - 7:45 pmBOS Boston Logan Intl-ISP Islip Long Island

1h 26mnonstop

$500Cape Air

Tue, Oct 27 - Thu, Oct 29

7:05 am - 8:30 amISP Islip Long Island-BOS Boston Logan Intl

1h 25mnonstop

8:55 am - 10:30 amBOS Boston Logan Intl-ISP Islip Long Island

1h 35mnonstop

$500Cape Air

Sun, Sep 13 - Sun, Sep 20

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Southwest flights from Islip, New York to New Hampshire

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

Southwest

Oct 19

ISP3:10 pmIslip Long Island

4h 05m

1 stop

BOS7:15 pmBoston Logan Intl

Oct 20

BOS6:30 pmBoston Logan Intl

4h 05m

1 stop

ISP10:35 pmIslip Long Island

$234

Southwest

Oct 27

ISP6:05 amIslip Long Island

10h 40m

2 stops

BOS4:45 pmBoston Logan Intl

Oct 29

BOS5:10 pmBoston Logan Intl

6h 25m

1 stop

ISP11:35 pmIslip Long Island

$240

Southwest

Oct 27

ISP6:05 amIslip Long Island

10h 40m

2 stops

BOS4:45 pmBoston Logan Intl

Oct 29

BOS7:05 amBoston Logan Intl

9h 55m

2 stops

ISP5:00 pmIslip Long Island

$245

Frontier flights from Islip, New York to New Hampshire

Our best Frontier deals on Islip, New York to New Hampshire flight tickets

Frontier

Oct 12

ISP4:13 pmIslip Long Island

17h 56m

1 stop

BOS10:09 amBoston Logan Intl

Oct 17

BOS11:05 amBoston Logan Intl

22h 28m

1 stop

ISP9:33 amIslip Long Island

$305

Frontier

Oct 12

ISP4:13 pmIslip Long Island

17h 56m

1 stop

BOS10:09 amBoston Logan Intl

Oct 18

BOS9:15 amBoston Logan Intl

24h 18m

1 stop

ISP9:33 amIslip Long Island

$319

Frontier

Aug 27

ISP10:57 amIslip Long Island

24h 53m

2 stops

BOS11:50 amBoston Logan Intl

Sep 6

BOS10:04 amBoston Logan Intl

8h 10m

1 stop

ISP6:14 pmIslip Long Island

$607

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IslipBoston

ISP Islip Long Island - BOS Boston Logan Intl

ISPBOS

Islip Long Island

Tue 10/27

12:50 pm-5:10 pm

1 stop4h 20m

Boston Logan Intl

Thu 10/29

5:35 am-11:45 am

1 stop6h 10m

$234

IslipBoston

ISP Islip Long Island - BOS Boston Logan Intl

ISPBOS

Islip Long Island

Mon 10/19

3:10 pm-7:15 pm

1 stop4h 05m

Boston Logan Intl

Tue 10/20

6:30 pm-10:35 pm

1 stop4h 05m

$234

IslipManchester

ISP Islip Long Island - MHT Manchester

ISPMHT

Islip Long Island

Thu 9/10

6:10 am-9:40 am

1 stop3h 30m

Manchester

Wed 9/16

5:35 am-12:10 pm

1 stop6h 35m

$234

IslipBoston

ISP Islip Long Island - BOS Boston Logan Intl

ISPBOS

Islip Long Island

Tue 10/27

6:05 am-4:45 pm

2 stops10h 40m

Boston Logan Intl

Thu 10/29

5:10 pm-11:35 pm

1 stop6h 25m

$240

IslipManchester

ISP Islip Long Island - MHT Manchester

ISPMHT

Islip Long Island

Thu 9/10

12:35 pm-9:55 pm

2 stops9h 20m

Manchester

Wed 9/16

5:35 am-12:10 pm

1 stop6h 35m

$240

IslipBoston

ISP Islip Long Island - BOS Boston Logan Intl

ISPBOS

Islip Long Island

Tue 10/27

6:05 am-4:45 pm

2 stops10h 40m

Boston Logan Intl

Thu 10/29

7:05 am-5:00 pm

2 stops9h 55m

$245

IslipBoston

ISP Islip Long Island - BOS Boston Logan Intl

ISPBOS

Islip Long Island

Wed 9/2

10:55 am-4:00 pm

1 stop5h 05m

Boston Logan Intl

Thu 9/24

5:50 am-9:40 am

1 stop3h 50m

$246

IslipBoston

ISP Islip Long Island - BOS Boston Logan Intl

ISPBOS

Islip Long Island

Wed 9/9

3:20 pm-9:30 pm

1 stop6h 10m

Boston Logan Intl

Wed 9/16

5:25 am-10:15 am

1 stop4h 50m

$246

Quickest round-trip

IslipBoston

ISP Islip Long Island - BOS Boston Logan Intl

ISPBOS

Islip Long Island

Fri 10/16

9:59 am-11:24 am

Nonstop1h 25m

Boston Logan Intl

Sun 10/18

6:19 pm-7:45 pm

Nonstop1h 26m

$491

IslipBoston

ISP Islip Long Island - BOS Boston Logan Intl

ISPBOS

Islip Long Island

Tue 9/15

10:05 am-11:30 am

Nonstop1h 25m

Boston Logan Intl

Fri 9/18

7:24 pm-8:59 pm

Nonstop1h 35m

$491

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Islip, New York 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 day to depart on your flight to New Hampshire?

The cheapest day to depart on your flight to New Hampshire is on a Thursday when prices can be found for as low as $520. 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 Sunday, with ticket prices averaging around $700.

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 afternoon. momondo users have found flights departing from Islip, New York to New Hampshire in the afternoon for as low as $508. 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 in the morning because they tend to be around $564. Of course, these prices can vary depending on the time of year and what airport you fly to.

Cheap Islip, New York to New Hampshire flight deals and tips

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

Fastest flight time	1h 25m
Direct flights	Every day
Airports in New Hampshire	52 airports

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

Direct flights go from Islip, New York to New Hampshire every day.

There are 52 airports in New Hampshire. From Islip, New York there are direct flights to Boston Logan Intl (BOS).

Search flight deals

Frequently asked questions about flying from Islip, New York 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 August 2026, there is 1 operator 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.