DUBAI: The biennial Dubai Air Show opened Monday with hometown airline Emirates ordering 65 of Boeing’s upcoming 777-9 aircraft, as the carrier looks to increase its fleets off record earnings and unending demand for flights through this East-West travel hub.

Emirates valued the deal with Boeing and GE Engines at $38 billion at list prices, although airlines often negotiate lower prices in major orders.

The announcement brings the total of Boeing 777-9s on order for Emirates to 270, making it Boeing’s largest customer for the aircraft, even as the plane has suffered repeated delays in entering service. Emirates relies heavily on the double-decker Airbus A380 and the Boeing 777, and has also started flying the Airbus A350.

“It’s a long-term commitment that supports hundreds of thousands of high-value factory jobs, and it reinforces our 40-year partnership with Boeing and GE,” said Sheikh Ahmed bin Saeed Al-Maktoum, the chairman and chief executive of Emirates.

“Emirates is already the world’s largest operator of the 777 — all powered by the GE engines — and after today's order, I expect to remain the biggest 777 operator for the years to come.”