To save on the cost of your flight from Islip to Colombia, book at least 57 days before your planned departure. Booking around this time can save you about 7% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $483 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $483.
Due to multiple factors, expect to potentially pay more when booking in December. For low rates, August can be a great choice for travel to Colombia. Flights to Colombia from Islip in August are about $468 on average during August, but can be found for as low as $282.