Originally Posted by
Xero
Buying an extra seat would help. Sure it won't be the most comfortable situation. But airplanes are a temporary environment. The worst most can get is a bit of discomfort for a few hours after the flight, but nothing major. You can stretch into the side. Also, you can stick your feet underneath the seat in front of you.
Not entirely true. I'm about 6'5" and was trapped on QX in an row next to a "person of size" who barely could fit into his seat (and had to breathe in deeply to lower than armrest). I had to visit a chiropractor within a day after landing, because I could not sit up straight for the more than two hours in flight -- I was forcibly angled into the seat away from the POS. Painful, and cost a few bucks.
I don't fly QX any more except for flights of less than an hour. Perhaps that's what the 6'9" should do.