Waiting 30 minutes after dropping off bags, checking in and going through security and walking miles to your gate is the absolute best case scenario in a metrop

Waiting 30 minutes after dropping off bags, checking in and going through security and walking miles to your gate is the absolute best case scenario in a metropolitan city-sized airport. It is really not comparable to getting to the train station 15-20 minutes before departure, making sure the platform is still the same, and getting a sandwich.