The order consists of 10 A321XLR aircraft, 50 A321neo aircraft and 20 A320neo aircraft, and the delivery of the jets is scheduled between 2027 and 2029.

"This is the largest single order that we have ever placed and it will bring our total Airbus aircraft purchased since inception to 546," said Robert Martin, the chief executive of BOC Aviation.

The Singapore-based aircraft lessor had entered a deal in March to purchase 11 Boeing 737 Max 8 aircraft, which are scheduled to be delivered in 2023 and 2024.

(The story corrects headline to say BOC Aviation to buy 80 Airbus aircraft, not seeks.)

(Reporting by Riya Sharma in Bengaluru; Editing by Aditya Soni)