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$1,644+ Cheap flights from Islip (ISP) to Hong Kong (HKG)

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 11/1. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — HKG
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Islip to Hong Kong

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Hong Kong (HKG). 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 September 17, 2025.

Round-trip from

$1,644
(oojo)

Popular in

December

Cheapest in

September

Average price

$974
From Islip Long Island to Hong Kong Intl
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($102 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($44 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from Islip to Hong Kong

Cheapest flights from Islip to Hong Kong
Explore the most affordable flight options available from Islip to Hong Kong. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This oojo deal was found by Cheapflights users on 9/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/11:57 pmISP - HKG
2 stops51h 08mCathay Pacific
Sat 11/89:30 amHKG - ISP
2 stops37h 25mCathay Pacific
Deal found 9/17$1,644
This Mytrip deal was found by Cheapflights users on 9/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/17:30 amISP - HKG
2 stops27h 40mMultiple Airlines
Fri 11/712:55 amHKG - ISP
2 stops28h 20mMultiple Airlines
Deal found 9/17$1,759

Cheapflights Fare Finder

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

Fly from

Islip

Fly to

Hong Kong

Route

Depart

Return

Price

IslipHong Kong

ISP - HKG

ISPHKG

Islip Long Island

Sat 11/1

1:57 pm-5:05 am

2 stops51h 08m

Hong Kong Intl

Sat 11/8

9:30 am-9:55 am

2 stops37h 25m

$1,644

IslipHong Kong

ISP - HKG

ISPHKG

Islip Long Island

Sat 11/1

9:59 am-4:25 am

1 stop30h 26m

Hong Kong Intl

Sat 11/8

7:40 pm-4:15 pm

1 stop33h 35m

$2,312

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Best time to book a flight from Islip to Hong Kong

Have a flexible travel schedule? Discover the best time to fly to Hong Kong 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 Hong Kong

What is the cheapest month to book a flight from Islip to Hong Kong?

Currently, September is the cheapest month in which you can book a flight from Islip to Hong Kong (average of $938). Flying from Islip to Hong Kong in December is currently the most expensive (average of $1,610). 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 Hong Kong. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Islip to Hong Kong?

    A quick flight from Islip to Hong Kong can take about 51h 08m. Cathay Pacific provides one of the quickest options available for as low as $1,644. The distance from Islip to Hong Kong is about 8048 mi.

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

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

  • How can I find direct flights from Islip to Hong Kong?

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

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

    Yes. Cheapflights offers flight deals from Islip to Hong Kong 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 to Hong Kong?

    Currently, September is the cheapest month in which you can book a flight from Islip to Hong Kong (average of $938). Flying from Islip to Hong Kong in December is currently the most expensive (average of $1,610). 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.

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