Planes overhead in HA1
Harrow and Brent, London. All 888 of its postcodes measured (72 PO boxes and other large-user postcodes left out), January to August 2026.
For Heathrow's expansion consultation, open until 22 December 2026: the planes over Harrow, council by council.
From Heathrow
Planes land and take off into the wind, so the weather decides which way Heathrow flies, and that decides how many pass over HA1. Across its postcodes, January to August 2026:
On a day it flies west, 56% of days
Up to 7
a day
Of its 888 postcodes:
- under 10
- 888
On a day it flies both ways, 15% of days
Up to 11
a day
Of its 888 postcodes:
- 10 to 99
- 79
- under 10
- 809
On a day it flies east, 29% of days
Up to 13
a day
Of its 888 postcodes:
- 10 to 99
- 31
- under 10
- 857
Each sector's bar splits its postcodes by how many planes pass over them a day; the figure above it counts those in the busiest band the sector reaches. The list above gives the whole district's counts.
| Sector | Flying west56% of days | Both ways15% of days | Flying east29% of days |
|---|---|---|---|
| HA1 1168 postcodes | 168 under 10 | 18 at 10 to 99 | 168 under 10 |
| HA1 2194 postcodes | 194 under 10 | 5 at 10 to 99 | 18 at 10 to 99 |
| HA1 3242 postcodes | 242 under 10 | 242 under 10 | 13 at 10 to 99 |
| HA1 4284 postcodes | 284 under 10 | 56 at 10 to 99 | 284 under 10 |
5 of its postcodes have a position ONS estimates, so their figures may be for a spot a few hundred metres away.
Over 32 of its postcodes, other flying passes too, from airfields, helicopters and airports we cannot check against official counts, so few planes from the airports we count does not mean a quiet sky there.
What counts as overhead
Overhead means more than halfway up the sky (48.5 degrees or more) and below 7,000 ft, the CAA's definition of an overflight (CAP 1498). A day counts as one way when 80% of its flights used that way. PO boxes and other postcodes for organisations that receive a lot of post are left out: they sit at a delivery office or a business, not at homes.
Near HA1
HA2 HA3 HA5 HA7 HA0 HA9 UB6 HA4
The councils
Where these figures come from
Counted from community flight tracking, checked against the CAA's monthly totals for Heathrow. Flight tracks: adsb.lol (ODbL 1.0); Weather at each airport: Iowa Environmental Mesonet; Ground heights: Contains OS data © Crown copyright and database right; Postcode positions: ONS National Statistics Postcode Lookup (OGL). Licence: Open Database License (ODbL) 1.0.