A scientist accidentally escapes containment aboard a plane during turbulence. After being gunned down by a guard, she reanimates--as a zombie. A U.S. air marshal, along with a police officer, a flight attendant, and a handful of passengers who have survived, must ride out the flight just to stay alive.
Flight of the Living Dead
A mad scientist is transferring a dead woman in a freezer with an armed guard on a plane to Paris. After slight turbulence, the freezer breaks down and she awakens, turns into a zombie, and infects all on board.