Korean Air has finalised an order for 12 Boeing aircraft, including five 747-8s, six 777-300ERs and one 787, according to a Boeing media release.
The deal has a value of $3.9 billion at list prices, says Boeing.
Korean Air made a commitment for the 747s and 777s at the Paris air show in June.
With the order, Korean Air now has orders for 10 747-8s, 10 777-300ERs and 11 787s.
"We are honoured to partner with Korean Air once again to provide them with the most efficient twin-aisle airplanes in the market," says Ray Conner, president and chief executive of Boeing Commercial Airplanes, in the release. "With 90 Boeing passenger airplanes in Korean Air's fleet and counting, we are proud our twin-aisle airplanes will continue to serve as the backbone of their long haul operations."