Airplane mode ultimately fly as passengers for 6 hours in the aircraft. Here you do not take over the cockpit, but look out the window or the stewardess "Hello".
Flight simulation
You sit on an airplane type seat in the wood class. The whole thing takes 2-5 hours, depending on where you are flying to. You can look at the security level, or leaf through a glossy magazine. You can fasten your seat belt with a swiping motion when I point this out to the stewardess. But either way, it'll blow up.
Lack of realism
Unfortunately, the game leaves a lot to be desired in terms of realism. The stewardess will wait next to a seat until you land, until you give her the empty drink. There are no security concerns whatsoever. Various passengers are sitting next to you. A game over the game is not. There are no penalties for wrongdoing or anything like that.
Conclusion
Stay away from Airplane Mode. The simulation does not seem realistic enough and there are no pitfalls that can lead to a game over. I can't really recommend this game: So stay away!