We are a party of four and we are traveling AA and arrive at 2:50PM at Newark Airport. We have to get to Kennedy Airport as we are traveling to Madrid at 6:50PM. We are all flying with the least miles, so this is the reason for this schedule. How can we connect from one airport to another and what would be the approximate cost? Is it wiser to pay our way to Kennedy at about $160 each? Is there a reliable limo service for this? We have to carry our luggage. Thanks in advance for all the suggestions.