Delta has reached an agreement with Airbus to extend its order book of the highly efficient, state-of-the-art A220 by 15 aircraft to a total of 90.

Delta's future A220 fleet will consist of 40 A220-100 series aircraft and the remaining 50 will be the larger A220-300 variant. Delta anticipates taking its first delivery of the A220-300 in 2020.

"These additional A220 aircraft will continue to strategically enable Delta to refresh our fleet, drive further advances in the customer experience and serve as an excellent investment for our customers, employees and shareowners for Delta into the next decade," said Gil West, Delta's Chief Operating Officer. "We look forward to taking our first A220-300 in 2020 at the Airbus assembly facility in Mobile, Alabama."

Delta expects all 90 A220 aircraft to be delivered by the end of 2023. The A220-300 aircraft will be configured with 130 seats and offer First Class, Delta Comfort+ and main cabin options for customers.