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.
What time do I need to arrive at the airport for my flight? Please be prepared and give yourself plenty of time for your upcoming trip. We recommend arriving at least two hours prior to your scheduled departure for domestic flights and at least three hours prior to a departure for an international flight.