Australian airline Virgin Blue says it will buy up to 105 new aircraft from manufacturer Boeing in its biggest single order.
The airline would not reveal the price, although the BBC quotes chief executive Brett Godfrey saying that it was "attractive" and that the company had been fortunate to take advantage of the downturn in the market.
Delivery is scheduled from June 2011 to 2017. The deal includes 50 Boeing 737-800NG aircraft, with 25 additional firm delivery positions secured as options and 30 future purchase rights.
Virgin Blue is Australia's second largest airline, behind Qantas.