The flight began on April 6, 1924, when four Douglas World Cruiser planes, named the Seattle, Chicago, Boston and New Orleans, set off from Seattle to Alaska, then over the Pacific to Japan, through Asia, the Middle East and Europe, over the Atlantic to Newfoundland via Iceland and Greenland, and finally over America from Boston back to Seattle.
Imagine 175 days to make it around the world. Happened thanks to the Army program called "World Flight" https://en.wikipedia.org/wiki/Douglas_World_Cruiser - here is a video clip from the adventure https://www.youtube.com/watch?v=tux_MRsC9l4 - and, useless trivia, but mom used to work for the company that built the planes (Douglas Aircraft) but not in 1924 - that was the year she was born - Douglas went on to become McDonnell Douglas and then Boeing. One of the planes was named Chicago https://en.wikipedia.org/wiki/Douglas_World_Cruiser In much later years, it was my privilege to do an around the world flight starting in Chicago - in 72 hours! And when Star Trek arrives.........