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$114+ Cheap flights from Islip, NY to Manchester, NH (ISP - MHT)

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 9/13. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — MHT
Aug 22 — Aug 291
Fri 8/22
Fri 8/29
1 adult, Economy
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Cheap flight deals from Islip to Manchester

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Manchester (MHT). 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 August 17, 2025.

Popular in

April

Cheapest in

October

Average price

$197
Highest demand for flights based on searches. 12% potential increase in price ($29 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Islip to Manchester

One-way flights from Islip to Manchester
Search for one-way flight options from Islip to Manchester. Find affordable one-way fares based on user searches. Data last updated August 17, 2025.

This Trip.com deal was found by Cheapflights users on 8/17. 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 9/1311:40 amISP - MHT
1 stop27h 01mMultiple Airlines
Deal found 8/17$114
This Southwest deal was found by Cheapflights users on 8/17. 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.
Sat 9/1312:15 pmISP - MHT
2 stops8h 35mSouthwest
Deal found 8/17$179
This KAYAK deal was found by Cheapflights users on 8/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/77:36 pmISP - MHT
2 stops13h 43mBreeze Airways
Deal found 8/16$276
This KAYAK deal was found by Cheapflights users on 8/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/57:08 pmISP - MHT
1 stop18h 36mBreeze Airways
Deal found 8/16$294

Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip to Manchester 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 August 17, 2025.
Use the filters below to find and compare flights from Islip to Manchester that are best for you.

Fly from

Islip

Fly to

Manchester

Route

Depart

Return

Price

IslipManchester

ISP - MHT

ISPMHT

Islip Long Island

Sat 9/13

11:40 am-2:41 pm

1 stop27h 01m

$114

IslipManchester

ISP - MHT

ISPMHT

Islip Long Island

Sat 9/13

12:15 pm-8:50 pm

2 stops8h 35m

$179

IslipManchester

ISP - MHT

ISPMHT

Islip Long Island

Sun 9/7

7:36 pm-9:19 am

2 stops13h 43m

$276

IslipManchester

ISP - MHT

ISPMHT

Islip Long Island

Fri 9/5

7:08 pm-1:44 pm

1 stop18h 36m

$294

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Best time to book a flight from Islip to Manchester

Have a flexible travel schedule? Discover the best time to fly to Manchester 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.

Cheapflights Insights

Everything you need to know about your flight from Islip to Manchester

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

Currently, January is the cheapest month in which you can book a flight from Islip, New York to Manchester, New Hampshire (average of $334). Flying from Islip, New York to Manchester, New Hampshire in April is currently the most expensive (average of $395). 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.

Related info for your journey

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

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

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

  • How can I find direct flights from Islip to Manchester?

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Islip, New York to Manchester, New Hampshire (average of $334). Flying from Islip, New York to Manchester, New Hampshire in April is currently the most expensive (average of $395). 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 Manchester?

Book flights to Manchester if you plan to visit one of these locations
Keene

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