Originally Posted by Shareholder

I suggest, if you can, change the flight ex-JFK to a later one, or the one into LGA to one the night prior and book a hotel at JFK. If you made the booking in the past few hours, you can often make a change within 24-hours of booking. (BTW what carrier are you on ex-JFK, and what about the return?)

Good luck, you'll really need it. And note it could be worse, you might have booked yourself into EWR -- there are actually three major airports serving NYC!