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.
See our Airport Information page to see how far in advance of your scheduled flight you should arrive at the airport, and for more information about the products and services available there. 30 minutes prior to scheduled departure time: We may begin boarding as early as 30 minutes prior to your flightâs scheduled departure time. We encourage all passengers to plan to arrive in the gate area no later than this time.