Qantas Airways Ltd said on Wednesday that it is stepping up the deliveries of the airline's ordered Boeing 787 Dreamliners by about two years, with the first eight B787-8 series aircrafts to be received by the middle part of 2012.

Another batch of seven B787-8s are scheduled for delivery on 2014 while about 35 B787-9 would join Qantas' fleet on the same year, completing the company's 50-planes order and replacing its ageing B767-300ER fleet.

Qantas said that the first batch of delivery are intended for the international service routes of its low-cost subsidiary, Jetstar, as it admitted that delays have marred the expected launch of the Dreamliner, which boasts of about 230 to 330 passenger-capacity.

Company chief executive Alan Joyce said that the airline's announcement today pointed to its commitment to Boeing's new technologies and better fuel efficiency, which affirms the B787s fit as the right aircraft for both Qantas and Jetstar.

Mr Joyce pointed out that Boeing's new aircraft series "will be ideal for point-to-point flying on medium density routes, both short and long haul and will allow Jetstar to move into southern Europe as well as build on its Asian network."

He added that the B787s are suitable for Qantas services into Asia and could also serve the airline's congested domestic route traffic.

Mr Joyce said that Qantas' accelerated aircraft upgrades manifested that "Qantas remains committed to growing both our airline brands by renewing our fleet and improving flexibility of our domestic and international operations."

He noted that the B787s delivery timetables were based on present guidance from Boeing though any adjustments were not being ruled out by the company.