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Islip

$115+ Cheap flights from New Hampshire to Islip, NY (ISP)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/28. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — ISP
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
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Cheap flight deals from New Hampshire to Islip

Keep the following information in mind while searching for New Hampshire to Islip flight deals. Data was last updated April 29, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$229
(Southwest)

One-way from

$115
(Southwest)

Popular in

April

Cheapest in

October

Average price

$248
Provider with most accurate pricing for Boston Logan Intl-New York (NYC) flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-New York (NYC) flights.
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From New Hampshire to Islip Long Island
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One-way flight from New Hampshire to Islip Long Island
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Highest demand for flights based on searches. 18% potential increase in price ($38 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from New Hampshire to Islip

Cheapest flights from New Hampshire to Islip
Explore the most affordable flight options available from New Hampshire to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.

This Southwest deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/286:15 pmBOS - ISP
1 stop4h 35mSouthwest
Wed 6/41:00 pmISP - BOS
1 stop6h 10mSouthwest
Deal found 4/28$229
This Southwest deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/284:05 pmPWM - ISP
1 stop6h 45mSouthwest
Sat 5/315:05 pmISP - PWM
1 stop6h 20mSouthwest
Deal found 4/29$242
This JetBlue deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/125:40 amBOS - ISP
1 stop8h 03mJetBlue
Sun 6/152:39 pmISP - BOS
1 stop8h 50mJetBlue
Deal found 4/28$333
This Mytrip deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/316:10 amBOS - ISP
2 stops26h 32mMultiple Airlines
Mon 6/210:44 amISP - BOS
3 stops36h 45mMultiple Airlines
Deal found 4/29$471
This FlightHub deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/78:20 pmPWM - ISP
2 stops22h 39mBreeze Airways
Tue 5/131:55 pmISP - PWM
2 stops29h 45mBreeze Airways
Deal found 4/28$581
This Mytrip deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/211:50 amPWM - ISP
3 stops25h 55mMultiple Airlines
Sun 5/47:39 pmISP - PWM
2 stops21h 57mMultiple Airlines
Deal found 4/28$1,049

Cheapflights Fare Finder

Customize your flight search to find flights from New Hampshire to Islip that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 29, 2025.
Use the filters below to find and compare flights from New Hampshire to Islip that are best for you.

Fly from

New Hampshire

Fly to

Islip

Route

Depart

Return

Price

BostonIslip

BOS - ISP

BOSISP

Boston Logan Intl

Wed 5/28

6:15 pm-10:50 pm

1 stop4h 35m

Islip Long Island

Wed 6/4

1:00 pm-7:10 pm

1 stop6h 10m

$229

PortlandIslip

PWM - ISP

PWMISP

Portland

Wed 5/28

4:05 pm-10:50 pm

1 stop6h 45m

Islip Long Island

Sat 5/31

5:05 pm-11:25 pm

1 stop6h 20m

$242

BostonIslip

BOS - ISP

BOSISP

Boston Logan Intl

Thu 6/12

5:40 am-1:43 pm

1 stop8h 03m

Islip Long Island

Sun 6/15

2:39 pm-11:29 pm

1 stop8h 50m

$333

BostonIslip

BOS - ISP

BOSISP

Boston Logan Intl

Sat 5/31

6:10 am-8:42 am

2 stops26h 32m

Islip Long Island

Mon 6/2

10:44 am-11:29 pm

3 stops36h 45m

$471

PortlandIslip

PWM - ISP

PWMISP

Portland

Wed 5/7

8:20 pm-6:59 pm

2 stops22h 39m

Islip Long Island

Tue 5/13

1:55 pm-7:40 pm

2 stops29h 45m

$581

PortlandIslip

PWM - ISP

PWMISP

Portland

Fri 5/2

11:50 am-1:45 pm

3 stops25h 55m

Islip Long Island

Sun 5/4

7:39 pm-5:36 pm

2 stops21h 57m

$1,049

BostonIslip

BOS - ISP

BOSISP

Boston Logan Intl

Wed 5/28

3:00 pm-8:20 pm

1 stop5h 20m

$115

PortlandIslip

PWM - ISP

PWMISP

Portland

Mon 7/21

5:40 am-9:25 am

1 stop3h 45m

$147

BostonIslip

BOS - ISP

BOSISP

Boston Logan Intl

Tue 5/20

6:30 am-4:50 pm

1 stop10h 20m

$167

BostonIslip

BOS - ISP

BOSISP

Boston Logan Intl

Thu 5/29

6:10 am-10:04 am

2 stops27h 54m

$182

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/27

Showing 1-10 of 11 results
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Best time to book a flight from New Hampshire to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from New Hampshire with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from New Hampshire to Islip

What is the cheapest month to book a flight from New Hampshire to Islip, New York?

Currently, January is the cheapest month in which you can book a flight from New Hampshire to Islip, New York (average of $108). Flying from New Hampshire to Islip, New York in November is currently the most expensive (average of $213). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Rainfall in Islip by month

Plan your trip to Islip by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Islip, New York ranges from 3.3 - 4.4 inches per month. March is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Islip, New York when rainfall is around 3.3 in.

Temperature in Islip by month

Plan your trip to Islip by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Islip, New York, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Islip

Get insights into the airlines that provide service to Islip. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Islip. Reviews last updated April 29, 2025.
Get a feel of what it's like to fly with Breeze Airways, Southwest and JetBlue from New Hampshire to Islip by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Breeze Airways
8.1
Very good
160 reviews

Crew

8.8

Entertainment

6.6

Boarding

8.3

Comfort

8.2

Food

6.7

Overall

8.1

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Breeze Airways
8.1
Very good
160 reviews
Breeze Airways
8.1
Very good
160 reviews

Crew

8.8

Entertainment

6.6

Boarding

8.3

Comfort

8.2

Food

6.7

Overall

8.1

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Southwest
8.0
Very good
4,295 reviews
Breeze Airways
8.1
Very good
160 reviews

Crew

8.8

Entertainment

6.6

Boarding

8.3

Comfort

8.2

Food

6.7

Overall

8.1

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
JetBlue
7.3
Good
2,922 reviews
Breeze Airways
8.1
Very good
160 reviews

Crew

8.8

Entertainment

6.6

Boarding

8.3

Comfort

8.2

Food

6.7

Overall

8.1

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!

Related info for your journey

Find useful and relevant information for your journey from New Hampshire to Islip. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Islip from New Hampshire?

    Islip Long Island (ISP) is the airport you will fly into if you book a flight from New Hampshire to Islip. It is only a 7.2 mi journey from Long Island (ISP) to Islip’s city center.

  • What are the cheapest airlines to fly from New Hampshire to Islip, New York one-way?

    The cheapest airline one-way is Southwest, with whom users have recently found tickets for as low as $115. However, be on the lookout for offers from JetBlue and Breeze Airways, as they are both options that can get you from New Hampshire to Islip, New York for a low price.

  • Can I find deals for flights from New Hampshire to Islip that include hotel bookings?

    Yes. In addition to deals on New Hampshire to Islip flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from New Hampshire to Islip?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from New Hampshire to Islip.

  • Can I find deals for business class flights from New Hampshire to Islip?

    Yes. Cheapflights offers flight deals from New Hampshire to Islip by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from New Hampshire to Islip, New York?

    Currently, January is the cheapest month in which you can book a flight from New Hampshire to Islip, New York (average of $108). Flying from New Hampshire to Islip, New York in November is currently the most expensive (average of $213). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near New Hampshire?

Book flights to New Hampshire if you plan to visit one of these locations
Southampton
Riverhead

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Alternative routes for New Hampshire to Islip

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Top airline flying from New Hampshire to Islip

Discover the top airline that operate flights from New Hampshire to Islip. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$254Average$466FlexibilityNo cancel feeOn-time63%

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