Jetstar Japan has finalised a deal to lease four Airbus A320-200s from Hong Kong Aviation Capital.
The first of the aircraft is scheduled for delivery in October, with two more to follow next year and the fourth due to arrive in 2014.
Jetstar Japan began commercial operations on July 3 with a fleet of three A320s. The partly Qantas-owned budget carrier has flagged plans to expand its fleet to 24 aircraft with a few years.