Cheapest return flights from Islip (ISP)

Click a destination for monthly fares.

Destination and lowest fare
Destination Price
Almaty (ALA) $ 1964
Bali Ngurah Rai (DPS) $ 1568
Keflavik International Airport (KEF) $ 1113
Luxembourg (LUX) $ 1104
Owen Roberts Intl (GCM) $ 665
Rafael Nunez (CTG) $ 443
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deals for one-way flights from Islip.

Updated Aug 25, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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