I will be arriving at Terminal A from a domestic flight and need to get to Terminal E for an international flight; both flights are with Delta.. I only have a layover of 1hr 20min. What would be the fastest option. If walk and take the sky bridge will I have to go thru TSA again;, I am TSA precheck? I understand that Delta has a shuttle from terminal A to Terminal E that doesn't require that I go thru the TSA. How often does the shuttle operate and how long does it take to go from Terminal A to E with the Delta shuttle. Which would be the fastest option? Thank you.