Comparisons show that while the Boeing 787-9 and A350-900 are similar in seating capacity, the A350-1000 surpasses even Boeing’s popular 777-300ER in range and fuel efficiency. Airbus claims up to a 20% lower fuel burn with the A350 compared to the 777; however, Boeing expects that the new 777X will help close this efficiency gap.
Noise reduction on the A350 comes from several design choices: high bypass ratio Rolls-Royce XWB engines with acoustic linings, aerodynamic features like Sharklets, sound insulation, and composite materials in the fuselage. These elements help meet current international noise standards such as ICAO Chapter 14 and FAA Stage 5.
A study published in Applied Acoustics found that onboard noise levels for different widebodies varied slightly: during flight tests, the A350-900 recorded cabin noise at about 74.9 dB—slightly higher than the Dreamliner’s 72.7 dB but quieter than older aircraft models.
Virgin Atlantic commented on their experience operating the A350-1000: "The high bypass engines and smooth aerodynamics mean that as well as being economical the A350 is the quietest long haul aircraft in the sky... with a cabin that is up to nine decibels quieter than older-generation aircraft. Just as importantly, the A350 is also super quiet on the outside, which is significant for anyone who lives near, or works at, an airport."
As of September 2025, over 1,400 orders have been placed for both variants of the A350 family—more than 1,000 for the -900 model and over 360 for the -1000 variant. Singapore Airlines operates one of the largest fleets of these aircraft globally. Other major operators include Air France, Cathay Pacific, Delta Air Lines, and Lufthansa.
Looking ahead at Boeing’s plans for noise reduction with its new widebody offering, the company has developed advanced technology for its upcoming GE9X engines used on the 777X series. Safran explained: "Mostly manufactured from titanium, this system integrates a nozzle that optimizes the turbojet’s engine aerodynamic exhaust flow. Part of its surface is acoustically treated which contributes to reducing the engine footprint noise." While initial concepts included engine chevrons—a feature present on other Boeing models—the final design uses alternative methods to limit drag while still meeting modern noise requirements.
Airbus continues to invest in production despite supply chain challenges affecting output rates earlier this year. The manufacturer aims to increase monthly production from six units currently to ten by next year and eventually twelve by 2028. Discussions continue about possible future variants or stretches of existing designs; CEO Guillaume Faury described another stretch as a "natural evolution" but not an immediate priority.
Meanwhile, development continues on new versions like freighter models—the first deliveries of which are expected after their maiden flights scheduled before service entry in 2027.
With more than a decade since its first commercial flight and hundreds already delivered worldwide, industry observers expect both competition and innovation among leading widebody jet manufacturers to remain strong.
Alerts Sign-up
