Cheapest one-way flights from West Palm Beach to Islip in May from $28

Best time to book flights for West Palm Beach (PBI) to Islip (ISP) flights at AirHint

AirHint found the following cheapest one-way flights from West Palm Beach (PBI) to Islip (ISP) in May 2025 (see full year).

One-Way flights

13 May Frontier Airlines direct
03 May Frontier Airlines direct
06 May Frontier Airlines direct
10 May Frontier Airlines direct
17 May Frontier Airlines direct
20 May Frontier Airlines direct
29 May Frontier Airlines direct
18 May Frontier Airlines direct
27 May Frontier Airlines direct
25 May Breeze Airways

Also check the deals for return flights from West Palm Beach to Islip in May.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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