$18,732+ Cheap flights from Islip, NY (ISP) to Vietnam
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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — SGN
Dec 17 — Dec 241
1 adult, Economy
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Find cheap flights from Islip to Vietnam 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 Vietnam
Keep the following information in mind while searching for Islip to Vietnam flight deals. Data was last updated November 17, 2025.
Most accurate provider | Mytrip 3 stars |
|---|---|
Most trusted provider | Mytrip 3 stars |
Popular in | June |
Cheapest in | September |
Average price | $829 |
Find flight deals from Islip to Vietnam
One-way flights from Islip to VietnamSearch for one-way flight options from Islip to Vietnam. Find affordable one-way fares based on user searches. Data last updated November 17, 2025.
Search for one-way flight options from Islip to Vietnam. Find affordable one-way fares based on user searches. Data last updated November 17, 2025.
This KAYAK deal was found by Cheapflights users on 11/14. 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.
Sun 4/2612:30 pmISP - HAN
2 stops42h 25mMultiple Airlines
Deal found 11/14![Multiple Airlines logo]()
$18,732
Cheapflights Fare Finder
Customize your flight search to find flights from Islip to Vietnam 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 17, 2025.
Use the filters below to find and compare flights from Islip to Vietnam that are best for you.
Fly from
Islip
Fly to
Vietnam
Route
Depart
Return
Price
IslipHanoi
ISP - HAN
ISPHAN
Islip Long Island
Fri 5/1
9:59 am-5:55 pm
2 stops44h 56m
$18,732
IslipHanoi
ISP - HAN
ISPHAN
Islip Long Island
Sun 4/26
12:30 pm-5:55 pm
2 stops42h 25m
$18,732
IslipHanoi
ISP - HAN
ISPHAN
Islip Long Island
Tue 4/28
9:59 am-5:55 pm
2 stops44h 56m
$18,732
IslipHanoi
ISP - HAN
ISPHAN
Islip Long Island
Sat 5/2
12:30 pm-6:05 am
2 stops30h 35m
$18,732
IslipHanoi
ISP - HAN
ISPHAN
Islip Long Island
Thu 4/30
9:59 am-6:05 am
2 stops33h 06m
$18,732
Best time to book a flight from Islip to Vietnam
Have a flexible travel schedule? Discover the best time to fly to Vietnam 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 Vietnam
What is the cheapest month to book a flight from Islip, New York to Vietnam?
Currently, September is the cheapest month in which you can book a flight from Islip, New York to Vietnam (average of $670). Flying from Islip, New York to Vietnam 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.