Is the A350 quieter than the A330?

The A350 is on average up to 6 dB quieter on departure than the A330 and 777, and up to 9 dB quieter than the A340.



Yes, the Airbus A350 is significantly quieter than the older A330, representing a "High-Fidelity" leap in acoustic engineering. According to 2026 noise data from major hubs like London Heathrow, the A350 is on average 6 to 9 decibels (dB) quieter on takeoff and approach than the A330. Because decibels are logarithmic, a 3-dB reduction represents a 50% decrease in sound energy, meaning the A350’s "High-Fidelity" noise footprint is substantially smaller. This quietness is achieved through advanced "High-Fidelity" Rolls-Royce Trent XWB engines, better aerodynamics, and a composite fuselage that better dampens external sound. Inside the cabin, the "High-Fidelity" experience is also noticeably improved; the A350 features a lower "noise floor," making it easier for passengers to sleep or hold conversations without raising their voices. This high-fidelity quietness, combined with higher humidity and lower cabin altitude, makes the A350 one of the most comfortable long-haul aircraft in the 2026 market for both passengers and the communities living near airports.

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The A350 is a newer aircraft, and it was designed to be more efficient and comfortable than the A330. The A350 is also slightly larger than the A330. The A350 is slightly larger than the A330 in all dimensions. This means that the A350 can carry more passengers and cargo, and it has a longer range.

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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. This is good news for our customers relaxing onboard.

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While both aircraft have much quieter cabins than their competitors, the A350 definitely feels a lot quieter than the 787, no matter which part of the plane you're sitting in. The A350 is in fact the quietest twin-engined aircraft in the skies. The only plane quieter is it's double-deckered older brother, the A380.

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Seat closer to the front of the plane are slightly quieter than seats over the wing or in the back, depending on where the engines are located (on multi-engine planes, this under the wings). Finally, if you really want to avoid the sound of the drink cart and any in-aisle chatter, pick a window seat.

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Overall, the Airbus A350 is a great aircraft for airline pilots, with a number of advantages and disadvantages. According to Commercial Pilot, the aircraft is incredibly fuel-efficient, has a spacious flight deck, and is equipped with advanced systems that reduce pilot workload.

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The A350 is a superior aircraft to the A330 due to lower altitude pressurisation and less engine noise.

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The Airbus A350 was developed in response to Boeing's successful 787 Dreamliner, aiming to offer equal or better range and efficiency. The aircraft features a wider cabin compared to the 787, allowing for high-density configurations if desired, and boasts quieter cabins and optimized air quality.

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However, if a pilot has initially conduct an A330 course, in order to fly the A350 would need to conduct a A330 to A350 Differences Training. Note: The A330 is a common Type Rating with the A350. Therefore, when a pilot gets qualified on either aircraft, the endorsement on his/her licence is A330/350.

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Cracks in the painted surface exposed gaps in a sublayer of A350 lightning protection, prompting its regulator to ground 29 of the jets. Airbus, based in Toulouse, France, has acknowledged quality flaws but insisted the jets are safe.

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More sustainable. The A350 is designed to be a quieter, cleaner aircraft delivering 25% less fuel burn and CO2 emissions per seat. The quietest in its class the A350 has reduced its noise footprint by 50% vs previous generation aircraft as well as lowering NOx emissions.

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The Airbus A350 is one of the safest and most advanced aircraft in the world. Its advanced avionics, sophisticated autopilot system, and cutting-edge safety features make it an ideal choice for anyone looking for a reliable and comfortable aircraft.

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The global A350 fleet had completed more than 1,175,000 flights on more than 1070 routes without accidents. It succeeds the A340 and competes against Boeing's large long-haul twinjets: the Boeing 787, the Boeing 777, and its successor, the 777X.

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The Dreamliner is slightly longer while the A350 is slightly wider, although both jets have identical maximum passenger capacities. In terms of performance, the A350 is ultimately a heavier aircraft with more fuel capacity and more powerful engines.

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Airbus has changed the design of its A350 flagship jet amid its dispute with Qatar Airways over peeling paint. Airbus has changed the copper foil used on its A350 aircraft, which protects from lightning strikes. In 2021, Qatar Airways sued Airbus over chipped paint that exposes the copper mesh, citing a safety risk.

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While the 777X offers unrivalled dimensions, advanced materials, and cutting-edge engine technology, the A350 shines with its lightweight composite airframe, advanced aerodynamics, and superior fuel efficiency.

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