Some planes may have more than the usual amount of legroom — giving passengers an entire seat space of room due to placement near the exit door.One flight passenger recently posted an interesting dilemma on the "r/delta" Reddit forum. The person shared that he or she was sitting in a window seat with no seat in front of them — allowing a two-row distance of extra space."Seat 29F on a 757 has no seat in front of it. It’s just 28D and 28E because of the exit door," the person wrote. "The seat is great for extra legroom on flights