Wikimedia Commons has media related to 1931 in aviation.

Aviation portal
Transport portal

This category is for aviation in the year 1931.

1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936

1880s
1890s
1900s
1910s
1920s
1930s
1940s
1950s
1960s
1970s
1980s

Categories

Categories:

Aviation by year
1930s in aviation
1931 in transport