Vera Miles, Jason Wingreen, and George Grizzard had appeared in episodes of THE TWILIGHT ZONE (1959-1964)
A year after this film , George Kennedy and Robert Vaughn met again in the movie " Delta Force" (1986) starring Chuck Norris.
Several actors of this film have previously starred in other air dramas , George Kennedy in "Airport 1975" and Gil Gerard in the film nominated for two Oscars "Airport 77"
Susan Blakely and George Kennedy already worked together in the film " Airport 79" starring French actor Alain Delon.
Bill Bixby already did something similar to an airplane drama in an episode of "The Incredible Hulk" named 747