Airport, though there is no official relation.
Airport '77 (1977.)
George Kennedy (what's an airport movie without him?! He was Golden Globe-nominated for Airport, 1970, and appeared in all three sequels as well.) Here, he's an airline executive who has his eye on a little orphan boy as a means of soothing his and his wife's loss of their own child. The boy is played by Danny Ponce, who had just come off a gig on Knots Landing and would soon become a regular on Valerie (which morphed into The Hogan Family before ending in 1991.)
But wait, someone in the airport hotel has been busy typing... They've concocted a note that reads: "HONOLULU WOULD HAVE BEEN LOVELY. IT WILL BE A TERRIBLE WAY FOR ALL OF US TO DIE. BUT JUSTICE MUST BE DONE. CONWEST 305 WILL NEVER REACH HAWAII."
The Towering Inferno (1974), who was just coming off the unsuccessful prime-time soap Emerald Point, N.A.S. His navigator is played by Steven Williams, who'd just had a stint on The Equalizer, but would soon take over (dismissed) Frederic Forrest's spot on 21 Jump Street for nearly 100 episodes.
Miles, who is a longstanding favorite of ours for both Psycho (1960) and Back Street (1961) and who still looked great, was making the occasional movie, but mostly stuck to plentiful guest roles on television at this time. She's still with us today, closing in on ninety, though she hasn't acted since about 1995.
The Concorde: Airport '79's Susan Blakely in an atrocious wig that looks like it is on loan from Linda Evans' stunt double AFTER a tussle in the art studio, lily pond or some other Dynasty location! Having played Frances Farmer in 1983's reasonably acclaimed Will There Really Be a Morning?, prestige projects sort of dissipated for her while she busied herself in guest roles. Blakely did, however, continue plugging along and still works regularly today (recently appearing twice on This is Us.)