| Year | Answer | % Correct |
|---|---|---|
| October 7, 1919 | KLM | 79%
|
| May 30, 1924 | Delta Air Lines | 76%
|
| December 29, 1928 | LOT Polish Airlines | 55%
|
| November 16, 1920 | Qantas | 55%
|
| February 9, 1923 | Aeroflot | 53%
|
| June 28, 1927 | Iberia | 47%
|
| December 5, 1919 | Avianca | 34%
|
| October 6, 1923 | Czech Airlines | 32%
|
| March 5, 1929 | LATAM Chile | 32%
|
| November 1, 1923 | Finnair | 29%
|
| June 17, 1927 | Air Serbia | 26%
|
| October 8, 1929 | Cubana | 24%
|
| January 30, 1929 | Hawaiian Airlines | 24%
|
| July 3, 1929 | Aeropostal | 18%
|
| 1927 | Grand Canyon Airlines | 18%
|