After u arrive to jfk go to air train. Air train station has two floors. Each lane have 2 directions. One lane on the 1st floor (upper than ground floor), second lane on the 2nd floor. On each floor there is a special man who helps people to select right lane and direction. Just tell him or her that u are going to Car Rental Service. And the man will point u a right lane and a right direction. Easy.
No, get the air train to Federal Circle, all the car rentals are there.
It's on the same property just that you off to drive to the car rental
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