When SAS pushes from gates in Oslo, Copenhagen or Stockholm, you can often see an A330 from another Nordic AOC holder parked at the same pier.
Those guys fly 12:30 flight time two-man crew utilising in flight rest. Blows my mind in terms of fatigue, but they do Bangkok (and a few days later the return) with only two flight crew members.
At the other end of the scale, a green tailed Hong Kong flag carrier who's often seen at Heathrow, Schipol and CDG has a 9h flight time limit on 2 crew, 13h fdp for three crew and basicly unlimited fdp with four. And a sweet clause that states the longer sector applies, meaning a 4 man Hong Kong - Frankfurt (12:something) is still 4 man return even if the return sector time is closer to 10.
It would seem SAS management's desire for 11h flight time (12:30 fdp without delays?) is targeting something in the middle of the extremes?