* Planes to be delivered between 2013-2015, to use Rolls-Royce engines
* To be deployed in routes within Asia, to Australia and Middle East (Adds details, background)
SINGAPORE Jun 29 (Reuters) - Singapore Airlines (SIA) said it had reached an agreement with Airbus to lease 15 more A330-300 aircraft.
SIA, 55 percent owned by Singapore state investor Temasek Holdings , said in a statement on Wednesday that the aircraft will be delivered from the world's largest plane maker between 2013 and 2015 and will use engines from Rolls-Royce .
The carrier said the planes will provide additional growth opportunities, signalling optimism in the outlook for air travel over the next few years at a time when Asia has overtaken North America as the busiest travel market.
"They will be operated by Singapore Airlines on routes within Asia as well as to points in Australia and the Middle East," SIA said.
"The aircraft will be powered by Rolls-Royce Trent 700 engines. They will be leased for a minimum of six years, with an option to extend the lease term, and will join 19 Trent 700-powered A330-300s already in service."
SIA declined to provide provide financial terms of the deal but industry data shows the total value of the 15 aircraft would be more than $3 billion at list price.
The airline currently operates a total of 108 aircraft, according to its website, including 11 Airbus A380 super-jumbos. (Reporting by Harry Suhartono; Editing by Anshuman Daga)