@Cessna172
Flights FROM Israel to USA on Thursday are not a big problem. The clock is with you as you fly west.
El AL leaves Ben Gurion Airport at 12:30 AM and Arrives non-stop JFK 5:25 AM EST. Even a 10 hour delay would not affect Shabbos if you were not making a connecting flight but staying in Metro NY.
My 30 Year old just flew in from business in Shanghai. With the time changes, she left Shanghai Monday Jan 7 at 8:20PM C(china)ST and landed JFK after 14 hours in the air Monday Jan 7 at 9:30PM EST.