Demo version of the song better known as Leaving On A Jet Plane, on album John Denver Sings, recorded at Goldstar in Hollywood and released as a limited edition of only 300, reissued on comp Definitive All-Time Greatest Hits (bonus cd). His own version as Leaving On A Jet Plane on his first official solo lp Rhymes & Reasons ('69) in the slipstream of Peter, Paul & Mary's hit.
Mitchell Trio [as Leaving, On A Jet Plane on Reprise album Alive!, their third with author John Denver, who replaced Chad Mitchell in his own trio, winning the audition over Richie Furay]
Peter, Paul & Mary [idem on Album 1700, two years later n°1 US]
Spanky & Our Gang [as Jetplane on their first lp]
Dick St. John [half of Dick & Deedee]
Mary Porcelijn [as Een Vliegtuig Staat Te Wachten]
Jos Van de Brom [Dutch Soundmix Show winner]
New Order [in Run]
Jan Smit [all as Leaving On A Jet Plane]
In '66 Peter, Paul & Mary also cut John Denver's For Baby (For Bobbie).