Startup carrier Jetstar Japan expects by the end of 2012 to launch service between Tokyo Narita and Osaka,

co-owners Japan Airlines, Qantas Group and Mitsubishi Corp. this week announced. Jetstar Japan is evaluating domestic service to other cities in Japan, including Sapporo, Fukuoka and Okinawa, and eventual short-haul international flights to Asian markets. Billing itself as a low-cost operator, the carrier expects to launch with three 180-seat, single-cabin Airbus A320s and grow to as many as 24 aircraft in its "first few years."