I read a lot of articles about travel from EWR to JFK, but I still have questions. I'll be at EWR at 9.21 pm on Wednesday and my next flight is at JFK at 12.30 am on Thursday. So I'll have only 3 hours. Will there be a lot of people at this time in both airports? Also, can I do an online chek-in for my next flight at JFK just in case if I'll be late? Is it enough to get there on time?
Thank you so much!!