Cheapest one-way flights from West Palm Beach to Islip in January from $29

AirHint found the following cheapest one-way flights from West Palm Beach (PBI) to Islip (ISP) in January 2026 (see full year).

One-Way flights

16 Jan Frontier Airlines direct
15 Jan Frontier Airlines direct
18 Jan Frontier Airlines direct
24 Jan jetBlue direct
01 Jan Frontier Airlines direct
19 Jan Frontier Airlines direct
25 Jan Southwest Airlines
04 Jan Avelo Airlines
25 Jan jetBlue direct
02 Jan Southwest Airlines

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

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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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