Aircraft Noise Levels: Quietest Planes to Fly

How Aircraft Noise Is Measured

Aircraft noise is measured in EPNdB (Effective Perceived Noise in decibels), a frequency-weighted measurement that accounts for how human hearing perceives engine noise. For passengers, what matters most is cabin noise level in dB(A) — the ambient sound pressure level inside the cabin during cruise. A normal conversation registers at about 60 dB(A). Aircraft cabins typically run between 75 and 85 dB(A) during cruise, with budget aircraft at the louder end.

Prolonged exposure above 75 dB(A) causes fatigue. Above 80 dB(A), normal conversation requires raised voices. This is why long-haul flights on older, noisier aircraft are physically exhausting even if you are otherwise sitting comfortably.

Quietest Aircraft Rankings

Aircraft	Cabin Noise (Cruise)	Why
Boeing 787 Dreamliner	~74–76 dB(A)	Carbon fiber fuselage, GEnx/Trent 1000 engines, serrated nacelles
Airbus A350-900/1000	~74–77 dB(A)	Composite airframe, Rolls-Royce Trent XWB, active noise cancellation in design
Airbus A220 (formerly C Series)	~76–78 dB(A)	GTF engines (Pratt & Whitney), advanced insulation
Airbus A321neo	~77–79 dB(A)	GTF or LEAP engines significantly quieter than A321ceo
Boeing 737 MAX	~78–80 dB(A)	LEAP-1B engines, modest improvement over NG
Airbus A380	~78–80 dB(A)	Large, well-insulated fuselage; four engines spread noise
Boeing 777-300ER	~80–82 dB(A)	GE90 engines powerful but loud; older design
Boeing 737 Classic / NG	~81–83 dB(A)	CFM56 engines, less acoustic insulation
Older 767/757	~82–84 dB(A)	Aging insulation, older engine mounts

Engine Position Impact on Passenger Noise

Where you sit relative to the engines significantly affects your experience. On twin-engine aircraft (787, A350, 777), the engines are under the wings. Seats directly at the wing or one row behind the wing exit are the loudest — you sit closest to the engine nacelles. Front-cabin economy seats (rows 10–20 on most widebodies) are noticeably quieter than rear cabin seats which sit behind the engine exhaust plane.

On the Airbus A380 and older Boeing 747, the two inboard engines are positioned further from the fuselage than the outboard engines, creating a complex noise envelope. Upper deck seats on the A380 benefit from the main deck acting as a sound buffer.

Regional jets like the Bombardier CRJ-900 and Embraer E175 have rear-mounted engines, making the last 5–6 rows extremely loud — often 84–86 dB(A).

Optimal Seat Location for Noise

Quietest zone: 10–15 rows ahead of the wings, away from galleys
Moderate: Over-wing rows (some engine noise, but structural isolation helps)
Avoid: Rows immediately behind the wing trailing edge (engine exhaust path) and last 4 rows on any twin-engine aircraft
Regional jets: Rows 1–10 are dramatically quieter than rows 15–20 when engines are rear-mounted

Noise-Canceling Headphone Effectiveness

Active noise cancellation (ANC) technology works best against the constant low-frequency drone of aircraft engines, which is exactly the dominant noise source in aircraft cabins. Sony WH-1000XM5 and Bose QuietComfort 45 reduce perceived engine noise by roughly 20–25 dB. In practical terms, a 787 at 75 dB(A) with good ANC headphones feels like sitting in a quiet office at 50–55 dB(A). Even without music playing, ANC headphones are worthwhile on any flight over 3 hours for fatigue reduction alone.