Reading the description of this achievement sounds like this would be hard & you're probably thinking "OH NO, NOT ANOTHER UNTOUCHABLES ACHIEVEMENT!" But really, this is much easier.
This is what I did: I played on single player, once I got to the airliner I opened the hatch and quickly ran up the fallen tree to the left. (The AI will usually distract the zombies while you make it to the top of the plane.)
Now, make it to the top of the plane, run to the tail and get on the end of the wing. Now this is not a glitch, this is legit, so zombies can make it to you, but since you are way up and at the edge, then nothing will come from behind you and nothing can come beside you, so all you gotta do is worry about your front.
The view from the wing is really great, so you can kill everything quite easily. Just survive without taking damage for about a minute and a half to two minutes & the achievement will unlock. At first I thought that my achievement was ruined when one of my AIs got hit by a hunter, but I still got the achievement, so I actually think that the AI or the other players on your team can get hit by infected and you can still get the achievement, unlike Untouchables. So really, this isn't as hard as it seems.
Edit: I had to clean up this and organize it. It looked horrible.