I have a question. Can anybody tell me if 2 hours and thirty minutes is enough time to transfer at JFK if one has to change from the UA terminal to the DL or the B6 terminal? Also, from what I understand the weather can be quite fierce in New York in winter. So should one expect heavy delays around January? I tried searching on the airport's website but couldn't find anything on minimum connecting times between different terminals.
Thanks in advance for your help!