One can switch seats when required during landing only, but one can have views from the middle seat too, as the chopper has big glass windows for clear views. We split passengers after 13000 Feet (4300 meters ) place called Pheriche, Once we do a double shuttle and fly 2 people and 3 people at a time, all passengers get guaranteed window seats for the actual Base camp part for this Everest Helicopter flight tour. The primary mountain flight is Pheriche to Everest Base camp and you are here on the window.