In 1964 I was just in my teens and traveled by air around the world by myself. Pan Am flight 001 which started in San Francisco - Honolulu, Tokyo, Hong Kong, Bangkok, Kolkata, Delhi, Beirut, Istanbul, Frankfurt, London, and finally New York. This took me two weeks because I stopped in various cities for a few days. I took a side trip from London to Copenhagen and Oslo then back to London to New York City for the Worlds Fair.
I flew Pan Am flight 001 and the return flight 002 (started in New York and flew the opposit direction stopping at the same cities ending in San Fran) from the U.S. to Bangkok from 1963 until 1969 every summer until I joined The Marines.
I think if you stayed on the aircraft the whole way it was a 45-48 hour flight!
Red, were you a young bride with a newborn, who needed fed and diaper changes...No diapers then...
Little more complicated than carrying a nap sack and hitch hiking which is something many have done.