These estimated checkpoint transition times are provided for convenience only and are not intended to be a substitute for proper preparation and timely arrival. We do not guarantee that this information will reflect your actual transit time through the checkpoint or any area of the airport, as these times are variable and may change quickly throughout the day. These transit times may include periods spent prior to the checkpoint queue, as well as time after the screening process. The busiest times usually occur between 5:00 a.m. and 8:00 a.m. Please check with your air carrier regarding recommended check-in times for your flight.