$10,690+ Cheap flights from Islip, NY (ISP) to Australia
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 7/31. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — SYD
Feb 27 — Mar 61
1 adult, Economy
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Cheapest flights from Islip to AustraliaExplore the most affordable flight options available from Islip to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 28, 2026.
Explore the most affordable flight options available from Islip to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 28, 2026.
This oojo deal was found by Cheapflights users on 1/26. 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.
Fri 7/3112:30 pm
ISP
- SYD
2 stops41h 40m
Multiple Airlines
Sun 8/92:05 pm
SYD
- ISP
2 stops59h 00m
Multiple Airlines
Deal found 1/26![Multiple Airlines logo]()
$10,690
This oojo deal was found by Cheapflights users on 1/27. 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.
Wed 3/119:59 am
ISP
- SYD
2 stops43h 51m
Multiple Airlines
Sat 3/213:15 pm
SYD
- ISP
2 stops66h 29m
Multiple Airlines
Deal found 1/27![Multiple Airlines logo]()
$10,735
This Ovago deal was found by Cheapflights users on 1/26. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/129:59 am
ISP
- SYD
2 stops32h 06m
Multiple Airlines
Thu 3/1910:25 am
SYD
- ISP
2 stops47h 19m
Multiple Airlines
Deal found 1/26![Multiple Airlines logo]()
$11,397
Find flight deals from Islip to Australia
Keep the following information in mind while searching for Islip to Australia flight deals. Data was last updated January 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $10,735 (oojo) |
Popular in | December |
Cheapest in | February |
Average price | $1,392 |
Cheapflights Fare Finder
Customize your flight search to find flights from Islip to Australia 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 January 28, 2026.
Use the filters below to find and compare flights from Islip to Australia that are best for you.
Fly from
Islip
Fly to
Australia
Route
Depart
Return
Price
IslipSydney
ISP - SYD
ISPSYD
Islip Long Island
Wed 3/11
9:59 am-8:50 pm
2 stops43h 51m
Sydney Kingsford Smith
Sat 3/21
3:15 pm-6:44 pm
2 stops66h 29m
$10,735
IslipSydney
ISP - SYD
ISPSYD
Islip Long Island
Thu 3/12
9:59 am-9:05 am
2 stops32h 06m
Sydney Kingsford Smith
Thu 3/19
10:25 am-6:44 pm
2 stops47h 19m
$11,397
Best time to book a flight from Islip to Australia
Have a flexible travel schedule? Discover the best time to fly to Australia 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 Australia
What is the cheapest month to book a flight from Islip, New York to Australia?
Currently, February is the cheapest month in which you can book a flight from Islip, New York to Australia (average of $146). Flying from Islip, New York to Australia in July is currently the most expensive (average of $1,021). 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.