Cheapest one-way flights from West Palm Beach to Islip in March from $37

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

One-Way flights

05 Mar Frontier Airlines direct
03 Mar Frontier Airlines direct
01 Mar Frontier Airlines direct

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

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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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