It’s generally more expensive to depart on a Saturday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.
Users have found that booking a flight from Islip to Cancun at least 22 days early can save you up to 4% on average compared to booking a flight this week. If booking 22 days before your flight isn’t an option for you, users have found flights from Islip to Cancun for as little as $349 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $359 for flights departing within the next 3 days.