| 1916, July 15 |
Founded as Pacific Aero Products Co. Seattle, Washington |
| 1927 |
Boeing created an airline named Boeing Air Transport, which merged a year later with Pacific Air Transport and the Boeing Airplane Company. The first airmail flight for the airline was on July 1, 1927. |
| 1928, July 27 |
The 12-passenger Boeing 80 biplane made its first flight. With three engines, it was Boeing's first plane built with the sole intention of being a passenger transport. |
| 1929 |
The company changed its name to United Aircraft and Transport Corporation in 1929 and acquired Pratt & Whitney, Hamilton Standard Propeller Company, and Chance Vought. |
| 1929, Sept |
The 80A, carrying eighteen passengers, made its first flight. |
| 1930 |
United Aircraft purchased National Air Transport |
| 1934 |
The Air Mail Act of 1934 prohibited airlines and manufacturers from being under the same corporate umbrella, so the company split into three smaller companies – Boeing Airplane Company, United Airlines, and United Aircraft Corporation, the precursor to United Technologies. |
| 1960 |
Vertol Aircraft Corporation was acquired by Boeing in 1960, and was reorganized as Boeing's Vertol division. |
| 1960, Dec |
Boeing announced the model 727 jetliner. |
| 1961 |
The twin-rotor CH-47 Chinook, produced by Vertol, took its first flight in 1961. This heavy-lift helicopter remains a work-horse vehicle up to the present day. |
| 1961 |
Boeing won a contract to manufacture the S-IC stage of the Saturn V rocket, manufactured at the Michoud Assembly Facility in New Orleans, Louisiana. |
| 1964 |
Vertol also began production of the CH-46 Sea Knight. |
| 1996 |
Boeing acquired Rockwell's aerospace and defense units. The Rockwell business units became a subsidiary of Boeing, named Boeing North American, Inc. |
| 1997 Aug |
Boeing merged with McDonnell Douglas |