Air train is good and goes to all terminals, 2 is said to be closed but it's connected to 1
It’s about 10-15 minutes, depending on traffic. On the way back I recommend calling a cab to get your car because they lie to you and tell you they are coming to pick you up but they never come. We waited an hour and a half cuz they kept telling us they were almost there
Once you park at LTP you are at the airport. The airtrain (takes you to your terminal) is directly across from LTP.
Thanks! Your answer is awaiting moderation.