United Airlines (UA, Chicago O'Hare) has announced it has ordered an additional nine B787-9s from Boeing (BOE, Washington National).

In a statement, the Illinois-based carrier said it expects the widebody jets to deliver in 2020. Collectively, they will be used to replace older widebody aircraft currently in service.

According to the ch-aviation fleets module, United currently operates twelve B787-8s, twenty-five -9s, and will take delivery of at least one -10 by year-end. The airline said that by the end of this year, it will have forty B787s in its fleet with a further 24 on order.

United's widebody fleet operations are based on Boeing jets and include thirty-seven B767-300(ER)s, sixteen B767-400(ER)s, nineteen B777-200s, fifty-five B777-200(ER)s, and seventeen B777-300(ER)s. It will also continue to evaluate opportunities to purchase used aircraft and, to that end, has also purchased twenty used A319-100s deliveries of which are expected in 2020 and 2021.