Stephen King did not write a novel called "Night Flyer." That's the title of a 1987 science fiction film directed by Robert Liebermann. It was based on a short story by George R.R. Martin, who's most famous for writing the "A Song of Ice and Fire" series, on which the "Game of Thrones" TV series is based.
So, while there is a "Night Flyer" story, it is not by Stephen King.