Can anyone tell the name of this old movie?

All i remember about this movie is that its about this guy who is afraid of flying and has to get on a plane, and so he sits by the window near the wing of the plane. As he sits there looking out the window he spots this creature (that's looks like a white bigfoot) on wing and starts taunting him, he keeps telling the flight attendant that there is something on the plane, but nobody believes him and as the plane takes off the creature begins to open the wings engine and rip wires out. Ok, so this all i remember. I hope someone can help me it's been bugging me for while.