I think the worst case is when your KA flight departs from remote gates (Gates 5xx, either true remote gates 511-530 or gates 501-510 in the north satellite terminal). In those cases you need to take a shuttle, which departs near gate 11 (one level below). If you happen to be in the Bridge or the Pier, then it will take some walk to get back to catch the shuttle. Therefore, whenever my KA flight departs from 5xx gates, I will just use either the Wing or the Deck.