Honestly, you probably would be able to do the job with a well-placed myocardial thump.
Ball your hand up into a fist, and wait for him to nod off and just swing down to hit him in the middle of the chest as hard as you can, and then spend the rest of the time fighting off anybody that would try to save him.
If you have time for a second round, a knife hand to the throat would be a good follow up.
Honestly, you probably would be able to do the job with a well-placed myocardial thump.
Ball your hand up into a fist, and wait for him to nod off and just swing down to hit him in the middle of the chest as hard as you can, and then spend the rest of the time fighting off anybody that would try to save him.
If you have time for a second round, a knife hand to the throat would be a good follow up.
You could just tell him a latino is flying the plane instead. He would stroke out and die right there.
On the plus side, it would kill half the other people on the flight too.