JAL's four 787-8 Dreamliners are valued at more than $900m at current list prices and will expand JAL's Dreamliner fleet to 49 aeroplanes.
"This order for additional 787 Dreamliners, is a key part of our strategy as we look to bolster our existing route network and strengthen our position ahead of the 2020 Summer Olympic Games in Tokyo," said Yoshiharu Ueki, president of Japan Airlines.
Qatar Airways' order is said to be worth more than $2bn at current list prices for the six Boeing planes.
According to a statement, "The order, a sign of the airline's continued expansion and contribution to the US economy, adds to the airline's current fleet of nearly 100 Boeing widebody aeroplanes and its more than 100 additional Boeing aircraft on order."
