United Airlines says it will take delivery of its new aircraft from Boeing and Airbus between 2016 and 2019.

United Airlines has ordered 50 new aircraft to replace some of its ageing fleet in a move to secure its long-term success in what it deems is a “highly competitive global market.”

America’s largest airline has placed an order for 25 Airbus A350 XWB aircraft, as well as 25 Boeing 787 Dreamliner aircraft which will replace a number of its ageing aircraft. The new craft should provide cost savings of around 40% per available seat mile, helping the airline reduce operating costs and put it in a strong position for the future.

The aircraft are expected to be operational between 2016 and 2019.

United is a subsidiary of UAL Corporation, and its Chairman, President and CEO Glenn Tilton said: “Over the last few years we have fundamental improvements in United’s performance, delivering excellent cost control while improving the quality and reliability of our product.

“We are investing in our future, and we are well positioned to take full advantage as the economy recovers in the shorter term.”

Boeing’s CEO and President, Jim McNerney, said that the 787 Dreamliner will provide United with additional range and unmatched fuel efficiency. He commented: “We think United is making a smart decision placing an order at this point in the cycle and taking delivery years into the future.”

United anticipates that the new craft will reduce its fuel costs and carbon emissions by 33%, and that new state-of-the-art cabins will significantly enhance the customer experience with larger windows, improved lighting and more overhead storage space.

The last time United ordered new craft was 1998.