So, I have a flight home to UK at 9pm from JFK after my Getaway cruise in February. Airfare and transports arranged by NCL. My question is, is it feasible to take the transfer to the airport, leave my luggage and then travel into Manhattan for the day for some sightseeing then get back to airport by about 6pm to check in? I don't really want to hang around the airport all day. The other option is to take the NCL sightseeing excursion which will do the airport drop off afterwards but I reckon that would have me back at the airport by early afternoon.