Airships started carrying passengers in the late 1920s. The Graf Zeppelin (shown above) was a glamorous commercial airship which first crossed the ocean in 1928.

In 1929 Germany’s Graf Zeppelin fully circled the globe, breaking the trip up into four legs and starting and ending in New Jersey; it took 22 days in total and carried 61 people. By the mid-1930s there were regular trans-Atlantic passenger flights.