No plane change for a one stop layover

Has anyone ever had a layover where you didn't have to change planes from MBJ back home? You stayed on your original flight from MBJ. I am asking because I have a layover in Charlotte coming back to ORD from MBJ. I don't have to leave the plane if I don't want to. I am wondering if I can purchase alcohol at Sangster to bring back home with no problems. I called the airline and the rep stated that I could purchase alcohol at Sangster and bring it on the plane.

I wanted to put this question on here to see if anyone has done this.

Thank you in advance. :)

I'm sure you'll have to deplane since this would be your first port of entry from Jamaica. When you get off in Charlotte, you'll have to go through immigration/customs, collect your luggage and then re-check. You'll need to put the alcohol in your checked luggage before re-checking it.

Yes, Lovechild is correct in that you will have to go through customs in Charlotte and then go through security once again.

Even if it is a "one-stop" flight with the same flight number, most instances you end up on a different plane anyway.

My experience was as Lovechild said. I had to deplane. The alcohol I bought from Jamaica came with me on that first flight. Once I got to the first stop (layover) I had to re-check my bags and put the booze in my checked luggage.