On April 24, 2025, United Airlines announced an investment in blended wing body aircraft start-up JetZero. JetZero is creating an all-new aircraft that is capable of enhancing customer experience and fuel efficiency.

Investment in JetZero Z4
The investment forges a pathway for United Airlines to order up to 100 aircraft and more. The condition for the purchase is based on JetZero achieving development milestones, including a full flight demonstration in 2027. The aircraft must also meet the United States’ safety, business and operating standards.
JetZeros’ all-wing Z4 reduces drag and produces lift across the entire wingspan of the aircraft. Due to the fabulous design of the aircraft, it could lead to a 50% reduction in fuel burn per passenger-mile when compared to other aircraft of its size. The Z4 is designed to accommodate 250 passengers and fly on conventional jet fuel. Andrew Chang, Head of United Airlines Ventures (UAV), said:
If successful, JetZero has the potential to evolve our core mainline business by developing aircraft with a bigger, more comfortable cabin experience for our customers while increasing fuel efficiency across our network.
He continues:
United Airlines Ventures® was created to support our efforts to find innovative companies that can enhance the customer travel experience and help the airline lower its carbon footprint, and we believe JetZero reflects that philosophy.
The aircraft is expected to fly at a higher altitude using less fuel. The design of the Z4 will greatly improve efficiency during operation. A flight from New York/Newark to Palma de Mallorca, Spain, would use 45% less fuel compared to the twin aisle aircraft currently operating the route. Tom O’Leary, CEO and co-founder of JetZero, said:
United’s investment in our company signals the industry’s belief that new, innovative technology is needed in order to achieve the efficiency and cost savings that will be required to meet the continued growth in demand for air travel across the globe. JetZero is focused on one key technology – the airframe – that enables us to address all the barriers to growth. This program is the only one in development today that promises efficiency and an elevated customer experience.

Offerings
The aircraft will offer passengers flexible seating options, larger sets across all classes, and dedicated bin space for each seating. It has a wider main boarding door compared to aircraft of its size, leading to multiple aisles and passenger cabin bays. This is a futuristic aircraft that will improve aviation efficiency and greatly improve the passenger experience.
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