Uh, didn't even notice. However, the other is over Miami, also iberia later. But in ny there is 10 hours, if I can't manage to get to the correct point, I guess I deserve the trouble . But do you think you have to carry checked luggage with you all the way? Because in that case 60 kilos can result in a bit of sweatening :S
Highly likely..you may have to carry luggage. Trolleys in JFK cost 5 usd approx. and I dont remember any free intra-terminal transfer.