HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
New Hampshire

$274+ Cheap flights from Islip (ISP) to New Hampshire

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/23. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — MHT
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Islip to New Hampshire with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Islip to New Hampshire

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to New Hampshire (USNH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 21, 2024.

Find flight deals from Islip to New Hampshire

Cheapest flights from Islip to New Hampshire
Explore the most affordable flight options available from Islip to New Hampshire. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

This Southwest deal was found by Cheapflights users on 11/20. 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.
Mon 12/237:10 pmISP - MHT
1 stop4h 45mSouthwest
Wed 12/256:00 amMHT - ISP
1 stop4h 40mSouthwest
Deal found 11/20$274
This Trip.com deal was found by Cheapflights users on 11/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/712:43 pmISP - BOS
1 stop11h 47mFrontier
Sun 12/86:00 amBOS - ISP
1 stop13h 02mFrontier
Deal found 11/19$283
This Southwest deal was found by Cheapflights users on 11/19. 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.
Thu 12/195:35 amISP - BOS
1 stop4h 25mSouthwest
Thu 12/268:05 pmBOS - ISP
1 stop3h 50mSouthwest
Deal found 11/19$354
This Southwest deal was found by Cheapflights users on 11/20. 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.
Mon 12/237:10 pmISP - PWM
1 stop4h 55mSouthwest
Sat 12/286:35 pmPWM - ISP
1 stop5h 20mSouthwest
Deal found 11/20$366
This Mytrip deal was found by Cheapflights users on 11/19. 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.
Thu 12/191:57 pmISP - BOS
3 stops19h 32mMultiple Airlines
Thu 12/268:30 pmBOS - ISP
2 stops17h 55mMultiple Airlines
Deal found 11/19$560
This JetBlue deal was found by Cheapflights users on 11/20. 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 12/510:45 amISP - BOS
1 stop6h 45mJetBlue
Sat 12/76:00 amBOS - ISP
1 stop6h 51mJetBlue
Deal found 11/20$602

Find flights from Islip to New Hampshire within your budget

Customize your flight search to find flights from Islip to New Hampshire 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 2,629,791 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

IslipManchester

ISP - MHT

ISPMHT

Islip Long Island

Mon 12/23

7:10 pm-11:55 pm

1 stop4h 45m

Manchester

Wed 12/25

6:00 am-10:40 am

1 stop4h 40m

$274

IslipBoston

ISP - BOS

ISPBOS

Islip Long Island

Sat 12/7

12:43 pm-12:30 am

1 stop11h 47m

Boston Logan Intl

Sun 12/8

6:00 am-7:02 pm

1 stop13h 02m

$283

IslipBoston

ISP - BOS

ISPBOS

Islip Long Island

Thu 12/19

5:35 am-10:00 am

1 stop4h 25m

Boston Logan Intl

Thu 12/26

8:05 pm-11:55 pm

1 stop3h 50m

$354

IslipPortland

ISP - PWM

ISPPWM

Islip Long Island

Mon 12/23

7:10 pm-12:05 am

1 stop4h 55m

Portland

Sat 12/28

6:35 pm-11:55 pm

1 stop5h 20m

$366

IslipBoston

ISP - BOS

ISPBOS

Islip Long Island

Thu 12/19

1:57 pm-9:29 am

3 stops19h 32m

Boston Logan Intl

Thu 12/26

8:30 pm-2:25 pm

2 stops17h 55m

$560

IslipBoston

ISP - BOS

ISPBOS

Islip Long Island

Thu 12/5

10:45 am-5:30 pm

1 stop6h 45m

Boston Logan Intl

Sat 12/7

6:00 am-12:51 pm

1 stop6h 51m

$602

IslipBoston

ISP - BOS

ISPBOS

Islip Long Island

Mon 12/23

4:03 pm-10:53 pm

1 stop6h 50m

$356

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Best time to book a flight from Islip to New Hampshire

Have a flexible travel schedule? Discover the best time to fly to New Hampshire from Islip 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.

Travel insights for flights from Islip to New Hampshire

Get recent, data-driven insights about flights from Islip to New Hampshire including ideal travel times, pricing trends, and more.

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

Currently, January is the cheapest month in which you can book a flight from Islip, New York to New Hampshire (average of $334). Flying from Islip, New York to New Hampshire in June is currently the most expensive (average of $453). 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.

Reviews of airlines servicing New Hampshire

Get insights into the airlines that provide service to New Hampshire. 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 New Hampshire. Reviews last updated November 21, 2024.
Southwest
8.1
Very good
5,015 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,015 reviews
Southwest
8.1
Very good
5,015 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

JetBlue
7.5
Good
3,396 reviews
Southwest
8.1
Very good
5,015 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Frontier
6.1
Okay
3,539 reviews
Southwest
8.1
Very good
5,015 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Related info for your journey

Find useful and relevant information for your journey from Islip to New Hampshire. 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 from for flights from Islip to New Hampshire?

    Most people fly from Islip Long Island (ISP) if they book a flight from Islip to New Hampshire. Islip Long Island is conveniently located just 7.2 mi from Islip’s city center.

  • What are the most popular routes from Islip, New York to New Hampshire?

    Most travelers choose Islip Long Island - Boston Logan Intl, Islip Long Island - Portland or Islip Long Island - Manchester when deciding on the best route from Islip, New York to New Hampshire.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Islip to New Hampshire 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 Islip, New York to New Hampshire?

    Currently, January is the cheapest month in which you can book a flight from Islip, New York to New Hampshire (average of $334). Flying from Islip, New York to New Hampshire in June is currently the most expensive (average of $453). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Islip to New Hampshire

See prices for flight routes from nearby airports that may be better suited for you.
LaGuardia to Fort Lauderdale flights
Newark to Fort Lauderdale flights
John F Kennedy Intl to Miami flights
Newark to Miami flights
LaGuardia to Miami flights
LaGuardia to Dallas/Fort Worth flights
John F Kennedy Intl to Orlando flights
John F Kennedy Intl to Los Angeles flights
Newark to Los Angeles flights
Newark to Orlando flights
John F Kennedy Intl to Las Vegas flights
LaGuardia to Orlando flights
John F Kennedy Intl to Dallas/Fort Worth flights
John F Kennedy Intl to Fort Lauderdale flights
Newark to Dallas/Fort Worth flights
John F Kennedy Intl to San Francisco flights
John F Kennedy Intl to Atlanta flights
John F Kennedy Intl to West Palm Beach flights
John F Kennedy Intl to O'Hare Intl flights
LaGuardia to Los Angeles flights
LaGuardia to Hobby flights
Newark to Atlanta flights
Newark to Las Vegas flights
Newark to Hobby flights
LaGuardia to Atlanta flights
Newark to San Francisco flights
LaGuardia to O'Hare Intl flights
Newark to Tampa flights
John F Kennedy Intl to Denver flights
John F Kennedy Intl to Sky Harbor Intl flights
John F Kennedy Intl to Seattle flights
John F Kennedy Intl to Hobby flights
Newark to O'Hare Intl flights
Newark to West Palm Beach flights
LaGuardia to Tampa flights
LaGuardia to Las Vegas flights
Newark to Seattle flights
LaGuardia to Denver flights
John F Kennedy Intl to Tampa flights
John F Kennedy Intl to Salt Lake City flights
LaGuardia to West Palm Beach flights
Newark to Sky Harbor Intl flights
Newark to Denver flights
Newark to Santa Ana flights
John F Kennedy Intl to New Orleans flights
John F Kennedy Intl to Charlotte flights
John F Kennedy Intl to Austin flights
Newark to Salt Lake City flights
John F Kennedy Intl to Honolulu flights
LaGuardia to George Bush Intcntl flights
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines