Cheap flights from Islip (ISP) to Seoul (SEL)

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 12% on flights from Islip to Seoul 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 $1,839. For sooner than that we have options available in the next 3 days from $1,839.

April can be a great time to fly to Seoul from Islip with a flight ticket averaging about $1,635. Cheapflights users have found deals in the month of April for as cheap as $863. The most expensive prices can be found in the month of December.

When flying from Islip to Seoul, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Great question - ISP to ICN just means Islip Long Island Airport to Incheon Intl Airport. Now you’ll know what these unique codes when you look for flights! Seoul Gimpo Intl Airport (GMP) are other airports near this flight route and their unique identifiers/IATA codes.