"This order for 777-300ERs will help us meet the growing airline demand for long-haul passenger airplanes," John Plueger, Air Lease president and chief operating officer, said in a joint statement with Boeing.

The jumbo 777-300ER is an extended-range version of the Boeing 777, capable of flying up to 14,490 kilometers (8,699 miles) and carrying 386 passengers.

In September, the Los Angeles-based Air Lease announced a huge order of 75 Boeing 737MAXs, Boeing's new-engine variation of the 737 under development. That order had a list price of $7.2 billion.