Two airlines announced plans to buy a total of 38 of Boeing's new 787 Dreamliner passenger planes Tuesday.
Air Canada will take 23 of the aircraft in a deal worth up to $3.5 billion.
The Canadian carrier said the 787's range and speed will allow them to serve new markets.
Meanwhile, Virgin-Atlantic Airways has ordered 15 787s, worth as much as $2.8 billion.
The deal includes options to buy additional 787s, which use new, light-weight materials to cut fuel costs.
The Bloomberg financial news service reports that Boeing now has 544 orders for the plane a full year before it goes into service, making it the most successful aircraft Boeing has ever marketed.Some information for this report was provided by AFP.