I think Genghis has it. That matches my experience, although I am only a recreational pilot. Today's example: non-flying visitors at the airfield were told that the aeroplane they were admiring was mine. 'Oh, do you fly it?' was the response, one that would not have been made were I not female, I'm certain. When the conversation moves on, such attitudes do too, so it's not all bad.
The only general, not personal, sexist comment from the flying world I've experienced was from a winch driver - in 1988.