re: MSY

I fly out almost weekly. I try to avoid US Park just for all the extra travel time. I only use them if we are leaving for a week long vacation with the kids, and I need to reserve a spot.

I have only been sent to the overfill lot twice - truth be told, it only added 15-20 minutes to get to the airport. TSA is never more than 20-30 minutes for the regular line, and despite the length of the line, TSA/Clear is usually 10 minutes or less.

I would be surprised if you miss your flight, but general recommendation is two hours before your domestic departure.