Can't speak about aviation videography as I never use it for that, but I have a GoPro (an old version) and I am really amazed by the quality of that tiny toy for videos (not too much for stills). If I'm not mistaken it's possible to add suction caps to attach it on a window (better ask for permission first). The only downside is the low battery life, but I think you won't be disappointed.
New airlines, new routes, new countries... back in the air