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Southwest Airlines have round trip airfares travelling to and from Islip Long Island NY (ISP) and Palm Beach FL (PBI) for $ 140, nonstop. On Southwest, you may have a personal item, a carry-on bag, 2 free checked bags and free change/cancellation. There is no seat selection.

Travel Availability:

Departs ISP: Nov 17, 19, 21-22; Dec 8, 13, 15; Jan 14-15, 21-22, 28-29; Feb 4, 25
Departs PBI: Nov 15; Dec 6; Jan 14-15, 22, 28-29; Feb 4-5, 11-12

To get this airfare deal, use the dates and book on Southwest Airlines [southwest.com]. Want to see more travel deals? Click here or here. Disclaimer: List price is an estimate and subject to fluctuate based on air carrier/hotel location, flight times/season or travel dates.