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Blended wing-body aircraft promise to enhance the commercial passenger experience while cutting emissions

The first time you see a rendering of blended wing-body aircraft, you can see the future of aviation taking shape. From the cockpit, the design curves out into a rounded triangle toward the wings, finishing in a trapezoid behind them. The engines pop out of the top like dorsal fins. It’s sleek, aerodynamic. Then you wonder what the inside looks like. Sadly, we don’t have real-life examples of what the flying experience will be like inside the blended wing-body aircraft, but the innovative designs promise more interior room while using less fuel. So, when will we see these planes in the skies?

A New Era in Aircraft Design

If all goes well with aerospace and aviation manufacturer JetZero’s Z4, the first blended wing-body flight could take place in 2027. The U.S. Air Force has invested $235 million in the craft’s development. United has an agreement in place to order up to 100 of the planes, with the option to order 100 more.

“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,” said Tom O’Leary, CEO and co-founder of JetZero. “JetZero is focused on one key technology – the airframe – that enables us to address all of the barriers to growth. This program is the only one in development today that promises efficiency and an elevated customer experience.”

The blended wing-body design can cut fuel consumption in half compared to similarly sized aircraft. The Z4’s engines will be compatible with Sustainable Aviation Fuel, offering the potential for even more emissions savings.

“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,” said Andrew Chang, head of United Airlines Ventures. “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.”

As for that customer travel experience, the blended wing-body design leaves more room for comfortable seating arrangements and a wider door for faster boarding and deplaning. The design will still be compatible with current runway and jetway layouts. With a goal of launching commercial flights in 2030, JetZero plans for the Z4 to be able to carry up to 250 passengers on a 5,000-nautical mile range, good enough for service on transatlantic routes.

Competing for a Cleaner Tomorrow

A little competition could be key to getting blended wing-body aircraft into the skies in the next few years. In addition to its deal with United, JetZero has also reached an agreement with Delta’s Sustainable Skies Lab to design the interior of the commercial Z4 and help Delta along on its 2050 net zero goal.

“While Delta is focused on doing what we can today to address our carbon footprint, it’s critical we also work with a variety of partners to advance revolutionary technologies, like JetZero’s BWB aircraft, to solve for a significant portion of future aviation emissions,” Delta chief sustainability officer Amelia DeLuca said.

JetZero’s competition is another Southern California-based aviation company, Natilus, which is developing its Horizon blended wing-body aircraft to carry 200 passengers on intercontinental and transatlantic routes. With emission reductions of 50% and 40% more interior space than tube-and-wing airplanes, Horizon will be able to lower drag and weight, burning less fuel.

“We have about 30% more floor space than a traditional airplane,” Natilus CEO Aleksey Matyushev told CNN. “So, what I think a lot of our customers are thinking about is an elevated passenger experience. Could you bring back the lounge? Are there other spaces in the airplane that you could carve out for those long flights?”

Like JetZero, Natilus also hopes to have commercial blended wing-body aircraft enter service by 2030. Horizon will apply lessons learned from Kona, Natilus’ air freight product, which the company says will be able to carry a payload of 3.8 metric tons over a distance of 900 nautical miles. There are 400 orders for Kona planes, and Natilus hopes to have a model off the ground in 2026.

“There’s a lot of questions about how you build a blended body at full scale, because all we have is wind tunnel data right now and then scale prototypes, but nobody’s actually built one at full scale,” Matyushev told CNN.

The discoveries these aviation innovators make in the next couple of years could go a long way toward shaping the future of flight.