Arriving at JFK with a group
JFK is spread across several terminals linked by the AirTrain, and the terminal map has been changing as new terminals open. The simplest way to get the pickup right is to give the airline and flight number when you book; the chauffeur confirms the terminal from the flight on the day. Domestic arrivals are met at the terminal curb with 30 minutes of included wait. International arrivals include 60 minutes, because passport control and customs at JFK can take a while for a large group.
If some of the group lands on another flight or at another terminal, list both. The Sprinter can collect from two terminals in one loop.