Air Lease has finalised an order for four 787-9s and four 737-800s, completing an agreement that was first announced at June's Paris air show, worth up to $1.2 billion.
"This order will continue to diversify our portfolio of efficient airplanes for our airline customers," said ALC chairman and CEO Steven Udvar-Hazy,
The aircraft join 74 737-800s and five 777-300ERs already on order from Air Lease.
The order also increases Boeing's backlog of the 250 to 290-seat 787-9s to 270, the first of which will delivered to Air New Zealand in 2014.
The addition of the four aircraft raises Boeing's 787 net order intake to 825 aircraft since the programme was first launched in December 2003.