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$1,908+ Cheap flights from Islip (ISP) to Hanoi (HAN)

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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — HAN
Okt 15 — Okt 221
Mi 10/15
Mi 10/22
1 adult, Economy
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Cheap flight deals from Islip to Hanoi

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Hanoi (HAN). 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 15, 2025.

Round-trip from

$1,908
(Mytrip)

Popular in

December

Cheapest in

September

Average price

$890
From Islip Long Island to Hanoi Noibai
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($106 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($44 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Islip to Hanoi

Cheapest flights from Islip to Hanoi
Explore the most affordable flight options available from Islip to Hanoi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Mytrip deal was found by Cheapflights users on 9/13. 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.
Di 10/287:30 amISP - HAN
2 stops27h 15mMultiple Airlines
Di 11/411:05 pmHAN - ISP
2 stops32h 40mMultiple Airlines
Deal found 9/13$1,908
This KAYAK deal was found by Cheapflights users on 9/14. 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.
Do 10/97:30 amISP - HAN
2 stops35h 25mMultiple Airlines
So 10/1910:55 pmHAN - ISP
2 stops31h 50mMultiple Airlines
Deal found 9/14$3,683
This KAYAK deal was found by Cheapflights users on 9/14. 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.
Mo 9/1511:53 amISP - HAN
2 stops31h 02mMultiple Airlines
Sa 10/411:05 pmHAN - ISP
2 stops46h 53mMultiple Airlines
Deal found 9/14$3,705
This KAYAK deal was found by Cheapflights users on 9/14. 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.
Mo 9/297:30 amISP - HAN
2 stops35h 25mMultiple Airlines
Sa 10/1811:05 pmHAN - ISP
2 stops31h 40mMultiple Airlines
Deal found 9/14$3,739
This KAYAK deal was found by Cheapflights users on 9/14. 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.
Mo 9/2911:53 amISP - HAN
2 stops31h 02mMultiple Airlines
Mi 10/1511:05 pmHAN - ISP
2 stops31h 40mMultiple Airlines
Deal found 9/14$3,794

Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip to Hanoi 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 15, 2025.
Use the filters below to find and compare flights from Islip to Hanoi that are best for you.

Fly from

Islip

Fly to

Hanoi

Route

Depart

Return

Price

IslipHanoi

ISP - HAN

ISPHAN

Islip Long Island

Di 10/28

7:30 am-9:45 pm

2 stops27h 15m

Hanoi Noibai

Di 11/4

11:05 pm-7:45 pm

2 stops32h 40m

$1,908

IslipHanoi

ISP - HAN

ISPHAN

Islip Long Island

Do 10/9

7:30 am-5:55 am

2 stops35h 25m

Hanoi Noibai

Mo 10/20

11:05 pm-7:45 pm

2 stops31h 40m

$3,683

IslipHanoi

ISP - HAN

ISPHAN

Islip Long Island

Do 10/9

7:30 am-5:55 am

2 stops35h 25m

Hanoi Noibai

So 10/19

10:55 pm-7:45 pm

2 stops31h 50m

$3,683

IslipHanoi

ISP - HAN

ISPHAN

Islip Long Island

Mo 9/29

11:53 am-5:55 am

2 stops31h 02m

Hanoi Noibai

Mo 10/13

11:05 pm-8:01 pm

2 stops31h 56m

$3,739

IslipHanoi

ISP - HAN

ISPHAN

Islip Long Island

Mo 9/29

7:30 am-5:55 am

2 stops35h 25m

Hanoi Noibai

Sa 10/18

11:05 pm-7:45 pm

2 stops31h 40m

$3,739

IslipHanoi

ISP - HAN

ISPHAN

Islip Long Island

Mo 10/6

11:53 am-5:55 am

2 stops31h 02m

Hanoi Noibai

So 10/19

10:55 pm-7:45 pm

2 stops31h 50m

$3,739

IslipHanoi

ISP - HAN

ISPHAN

Islip Long Island

Mo 10/6

7:30 am-5:55 am

2 stops35h 25m

Hanoi Noibai

Mo 10/20

11:05 pm-7:45 pm

2 stops31h 40m

$3,739

IslipHanoi

ISP - HAN

ISPHAN

Islip Long Island

Mo 9/29

11:53 am-5:55 am

2 stops31h 02m

Hanoi Noibai

So 10/12

10:55 pm-8:01 pm

2 stops32h 06m

$3,739

IslipHanoi

ISP - HAN

ISPHAN

Islip Long Island

Mo 9/29

11:53 am-5:55 am

2 stops31h 02m

Hanoi Noibai

Mi 10/15

11:05 pm-7:45 pm

2 stops31h 40m

$3,794

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Best time to book a flight from Islip to Hanoi

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

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

Currently, September is the cheapest month in which you can book a flight from Islip to Hanoi (average of $864). Flying from Islip to Hanoi in December is currently the most expensive (average of $1,600). 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 Hanoi. 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 Hanoi that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Islip to Hanoi 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 Hanoi?

    Currently, September is the cheapest month in which you can book a flight from Islip to Hanoi (average of $864). Flying from Islip to Hanoi in December is currently the most expensive (average of $1,600). 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

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