Qantas and Jestar passenger planes are seen on the tarmac at Melbourne's Tullamarine Airport
Qantas (L) and Jetstar passenger planes are seen on the tarmac at Melbourne's Tullamarine Airport December 18, 2009. Two of Asia's major low-cost airlines, Malaysia's AirAsia and Qantas Airways-owned Jetstar, are in talks to form a joint venture, in a sign budget carriers are under pressure to drive costs even lower. REUTERS/Mick Tsikas (AUSTRALIA - Tags: TRANSPORT BUSINESS)