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.
When traveling to the U.S. from an international city, we suggest that you arrive at least three hours prior to your flightâs scheduled departure time during peak travel periods. Boarding may begin as early as 30 minutes prior to your flightâs departure time. You should be in the gate area with your boarding pass in hand at least 10 minutes prior to departure, or your reservations may be cancelled and you will not be eligible for denied boarding compensation.