The million dollar way to take down a plane : shoot a missile.
100 dollar way? keep your cell phone turned on while the plane is taking off. At least if you believe the air crew and pilots.
And here's the $1 way to take down a plane. Your pocket laser pointer.
https://www.cbc.ca/news/canada/newfoundland-labrador/westjet-pilot-eyes-burned-by-laser-1.5144981