This isn’t a logline. There’s an interesting premise but the reader needs to understand the story! Loglines are read by producers to determine whether a story is worth pursuing and in order to do that they must get a feel for the movie as a whole – protagonist, antagonist, goal, stakes, etc, etc. It’s not designed to encourage an audience to see it. By veering away from the recommended guidelines (and they are just guidelines) you run the risk of the reader simply discarding it as it’s not a logline. Why risk it for the sake of a little time coming up with a decent logline? Your concept is strong enough for a logline to be pretty straightforward (as Richiev has demonstrated) and still provide the interest and thirst for more whilst actually conforming to the format that a reader expects. You will not get necessarily get the chance to explain anything to the reader other than what’s in the logline – they won’t understand that it’s a single location, they won’t get that it’s a “snakes on a plane” type thing because they might not even read the title.

Why is this different to every other film where there’s a guy who hijacks a plane? Is this a commercial flight? Or a tiny 2 seater? Is the pilot the psycho? Has the plane left the tarmac? Why do we care? Your logline is where you have the opportunity to show off your hook… don’t waste it.