Guest star Patty Duke was pregnant on screen and off. Duke and her husband John Astin welcomed their son Mackenzie Astin on May 12, 1973, just a few months after this episode was first broadcast.
"Thanks for the Honeymoon" is among the final few appearances of veteran TV heavy Lane Bradford, who died of a brain hemorrhage on June 7, 1973 at the age of 50. He was a resident of Honolulu at the time of his passing.
The house that Manola is shown occupying in Maui is the same house that Charles Lindburgh occupied when he lived there.
The HPD Helicopter a 1966 Bell 47J2-A, Serial #3725 N8585F was the last one of these ever built.
This episode was a reunion of sorts for Larry Kert and Carol Lawrence, who created the original Broadway roles of Tony and Maria in "West Side Story" in 1957.