United Airlines Holdings Inc. is embarking on the largest fleet rejuvenation in its history, adding widebody aircraft fitted with its latest suite and the longest range Airbus SE A321. The Chicago-based airline will take delivery of more than 250 aircraft by April 2028, including the A321XLR model that will open routes to smaller cities in Europe and South America. The move follows years of aggressive aircraft orders aimed at capturing higher-end travelers. In 2023, United plans to purchase 110 additional planes, including 50 Boeing 787 Dreamliners and 60 Airbus A321neos. Despite rising fuel costs, United Airlines CEO Scott Kirby warned that ticket prices may have to rise 20% if oil prices remain elevated. The company also faces competition from Delta Air Lines Inc. and others eager to cash in on the K-shaped economy.