$4,166+ Cheap flights from Islip, NY (ISP) to Southeast Asia
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 2/8. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — BKK
Dec 4 — Dec 111
1 adult, Economy
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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
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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 Southeast Asia
Keep the following information in mind while searching for Islip to Southeast Asia flight deals. Data was last updated November 4, 2025.
Most accurate provider | Justfly.com 3 stars |
|---|---|
Most trusted provider | Justfly.com 3 stars |
Round-trip from | $15,364 (IEagle) |
One-way from | $4,166 (IEagle) |
Popular in | December |
Cheapest in | September |
Average price | $985 |
Find flight deals from Islip to Southeast Asia
Cheapest flights from Islip to Southeast AsiaExplore the most affordable flight options available from Islip to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 4, 2025.
Explore the most affordable flight options available from Islip to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 4, 2025.
This IEagle deal was found by Cheapflights users on 11/3. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/287:30 amISP - HKT
2 stops36h 40mMultiple Airlines
Thu 12/410:30 amHKT - ISP
2 stops45h 15mMultiple Airlines
Deal found 11/3![Multiple Airlines logo]()
$15,364
Cheapflights Fare Finder
Customize your flight search to find flights from Islip to Southeast Asia 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 November 4, 2025.
Use the filters below to find and compare flights from Islip to Southeast Asia that are best for you.
Fly from
Islip
Fly to
Southeast Asia
Route
Depart
Return
Price
IslipPhuket City
ISP - HKT
ISPHKT
Islip Long Island
Fri 11/28
7:30 am-8:10 am
2 stops36h 40m
Phuket City
Thu 12/4
10:30 am-7:45 pm
2 stops45h 15m
$15,364
IslipPhuket City
ISP - HKT
ISPHKT
Islip Long Island
Sun 2/8
12:40 pm-8:25 pm
3 stops43h 45m
$4,166
Best time to book a flight from Islip to Southeast Asia
Have a flexible travel schedule? Discover the best time to fly to Southeast Asia 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 Southeast Asia
What is the cheapest month to book a flight from Islip, New York to Southeast Asia?
Currently, January is the cheapest month in which you can book a flight from Islip, New York to Southeast Asia (average of $533). Flying from Islip, New York to Southeast Asia in June is currently the most expensive (average of $851). 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.