Cheap flights from Islip (ISP) to Puerto Rico from $98

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 61 days in advance, which can save you up to 24% on flights from Islip to Puerto Rico compared to booking the week you need them. Waiting 61 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $391. For sooner than that we have options available in the next 3 days from $412.

October can be a great time to fly to Puerto Rico from Islip with a flight ticket averaging about $363. Cheapflights users have found deals in the month of October for as cheap as $182. The most expensive prices can be found in the month of December.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Islip to Puerto Rico as you normally would.

Islip Long Island (ISP), located 7.2 mi from the city center, is the airport you fly out of when you book flights from Islip to Puerto Rico.

Yes, there are multiple flights from Islip to Puerto Rico for under $200. The cheapest flight booked recently is on Multiple Airlines for just $189, but on average you can expect to pay $425.

There are currently 4+ open flights from Islip to Puerto Rico within the next 7 days for less than $300.

ISP stands for Islip Long Island Airport, while SJU stands for San Juan Luis Munoz Marin Intl Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. Aguadilla Borinquen Airport (BQN), San Juan Isla Grande Airport (SIG), Ponce Mercedita Airport (PSE), Vieques Airport (VQS), Culebra Airport (CPX) are other airports near this flight route and their unique identifiers/IATA codes.