Cheap flights from Islip (ISP) to Costa Rica from $170

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 53 days in advance, which can save you up to 12% on flights from Islip to Costa Rica compared to booking the week you need them. Waiting 53 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 $571. For sooner than that we have options available in the next 3 days from $581.

Our data shows that May tends to be the cheapest month to fly to Costa Rica from Islip. Users have commonly found prices around $508 for the month, but tickets can be as low as $244. Due to multiple factors, prepare for potentially higher prices in December.

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

Most people fly from Islip Long Island (ISP) if they book a flight from Islip to Costa Rica. Islip Long Island is conveniently located just 7.2 mi from Islip’s city center.

ISP and SJO are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. ISP to SJO refers to a flight route from Islip Long Island Airport to San José Juan Santamaria Intl Airport. Liberia Airport (LIR), Limon Airport (LIO), San José Tobias Bolanos Intl Airport (SYQ), Tamarindo Airport (TNO), Quepos Airport (XQP) are other airports near this flight route and their unique identifiers/IATA codes.