Here's the deal: Yes, your metabolism affects your size, and the faster your personal motor runs, the more calories you'll burn. But the truth is, a slow metabolism isn't the real reason you're packing on pounds. You are the reason.
As a general rule, arrive at the airport no later than two hours before your domestic flight is scheduled to depart. This is somewhat later than the typical suggestion of three hours for an international flight.
For flights within the U.S., all customers must be on board the aircraft 15 minutes before the scheduled departure time. We recommend being at the boarding gate at least 15 minutes before departure to ensure that youâre on the aircraft before the doors are closed.