Aircraft noise in Ashtead (KT21, KT22)
Aircraft fly over Ashtead roughly 5 times a day, the bulk of them helicopters and light aircraft, below 3,000 ft. Estimated peak ground noise reaches 82–87 dB. It ranks #28 of 29 Gatwick areas for aircraft noise exposure. (Flight Path Noise monitoring data, 36.7 days to 2026-08-23.)
Data: 36.7 days to 2026-08-23 · all tracked aircraft over Ashtead · updated monthly
Where the noise comes from
Helicopters & other light aircraft
5 overflights/day (100%) · typically 1,600 ft
The low traffic overhead is almost entirely light aircraft and helicopters on the North Downs transit routes, typically around 1,600 ft.
Light-aircraft counts are tracked overflights only — many training and private aircraft carry no ADS-B transponder, so true numbers are higher.
How nearby areas compare
| Area | Overflights / day | Rank |
|---|---|---|
| Tadworth and Epsom Downs | 10 | #14 |
| Leatherhead | 6 | #22 |
| Great Bookham and Fetcham | 6 | #23 |
| Dorking | 5 | #27 |
| Ashtead | 5 | #28 |
Common questions
- Is Ashtead under a flight path?
- Yes — Ashtead is directly under the area's flight paths, with around 5 overflights on a typical day, mostly arrivals.
- What time do planes start over Ashtead?
- The first movements typically pass over Ashtead around 10:19am, building through the morning peak.
- Is it quieter in Ashtead on weekends?
- Slightly — weekends average about 16% fewer overflights than weekdays (5 vs 6 a day).
Checking a specific address?
This page shows area-wide averages. An address report gives you the exact overflight count, altitudes, hourly pattern and noise estimate for one property. Leave your email and we'll let you know when reports are ready for Ashtead.