Yeti Airlines started its first commercial flight in September 1998 with a single Canadian built DHC6-300 Twin Otter aircraft. Within a decade it became the largest domestic airline operator with a fleet of BAE Systems Jetstream-41, DHC6-300 Twin Otter and the German built Dornier Do 228 aircraft. Yeti Airlines has added four ATR 72-500 into its fleets, two in 2017, one in 2018 and one in 2019 .