yes. My two are teens now. oldest with autism and youngest with autism and adhd.
They've just come back from Kenya as it happens. not direct either, was two flights.
We were really concerned particularly about the youngest and we spent a long time going over and over and over everything that would happen. We looked up videos on youtube, wrote social stories, did story boards, etc etc. We planned for him kicking off, for him shutting down, tried to think of every possibility. Took earmuffs, games, etc
Turned out he LOVED it! He thought it was amazing. He played games and watched movies on this little screen they have at the back of the seat in front of them.
They were both very frightened of the toilets at first, that was the biggest problem.
Worst bit was airline left the luggage. we hadn't considered this so hadn't done any prep on it. My youngest couldn't cope with that and he was terribly upset. but it arrived the next day and he was ok.
My husband chose specific seats that he felt would enable him to manage them. He basically pinned them in 