The Airbus A321XLR represents an important addition to United's future fleet and is expected to replace older Boeing 757 aircraft on selected routes. Alongside the new Economy Plus seating option, the aircraft will feature an upgraded cabin with United Polaris business-class suites, Premium Plus, larger overhead bins, 4K OLED entertainment screens with Bluetooth connectivity, and an onboard self-service snack station. United plans to begin domestic operations with the A321XLR later in 2026, followed by international flights in 2027, giving travelers access to a more modern and comfortable aircraft on both domestic and transatlantic services.