A direct flight route between Taipei and the mainland city of Urumqi, capital of northwest China's Xinjiang Uygur Autonomous Region, was launched by Taiwan-based China Airlines on Tuesday.
It is the longest route between both sides of the strait, according to China Airlines.
The six-hour flight will be available three times a week on Tuesdays, Fridays and Sundays.
The flight will cut the Taipei-Urumqi journey time by fours hours.
Urumqi International Airport is China's westmost international airport with 147 routes.