Innovation continued with the introduction of the Boeing 727 in 1964. This enabled Lufthansa to launch a pioneering Polar route from Frankfurt to Tokyo via Anchorage in May of that year. Further expansion plans were solidified in February 1965 with the order of twenty-one Boeing 737 aircraft, entering service in 1968.thumb|right|Lufthansa was the launch customer of the Boeing 737. The image shows an original 737-100 at Hannover Airport in 1968.Lufthansa's role in Boeing's history is noteworthy. They hold the distinction of being the first customer for the Boeing 737 and one of only four buyers of the initial 737-100 model (alongside NASA, Malaysia-Singapore Airlines, and Avianca). While NASA technically had the first built 737 airframe, it was ultimately delivered last and originally intended for Lufthansa, making them the first foreign launch customer for a Boeing airliner.
Innovation continued with the introduction of the Boeing 727 in 1964. This enabled Lufthansa to launch a pioneering Polar route from Frankfurt to Tokyo via Anchorage in May of that year. Further expansion plans were solidified in February 1965 with the order of twenty-one Boeing 737 aircraft, entering service in 1968.thumb|right|Lufthansa was the launch customer of the Boeing 737. The image shows an original 737-100 at Hannover Airport in 1968.Lufthansa's role in Boeing's history is noteworthy. They hold the distinction of being the first customer for the Boeing 737 and one of only four buyers of the initial 737-100 model (alongside NASA, Malaysia-Singapore Airlines, and Avianca). While NASA technically had the first built 737 airframe, it was ultimately delivered last and originally intended for Lufthansa making them the first foreign launch customer for a Boeing airliner.