Planes overhead in NW4
Barnet, London. All 714 of its postcodes measured (44 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 Barnet, 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 NW4. Across its postcodes, January to August 2026:
On a day it flies west, 56% of days
Up to 76
a day
Of its 714 postcodes:
- 10 to 99
- 714
On a day it flies both ways, 15% of days
Up to 77
a day
Of its 714 postcodes:
- 10 to 99
- 714
On a day it flies east, 29% of days
Up to 58
a day
Of its 714 postcodes:
- 10 to 99
- 714
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 |
|---|---|---|---|
| NW4 1172 postcodes | 172 at 10 to 99 | 172 at 10 to 99 | 172 at 10 to 99 |
| NW4 2178 postcodes | 178 at 10 to 99 | 178 at 10 to 99 | 178 at 10 to 99 |
| NW4 3182 postcodes | 182 at 10 to 99 | 182 at 10 to 99 | 182 at 10 to 99 |
| NW4 4182 postcodes | 182 at 10 to 99 | 182 at 10 to 99 | 182 at 10 to 99 |
Also counted here: Luton, at most 1 a day over any of its postcodes; Stansted, at most 1 a day over any of its postcodes.
1 of its postcodes have a position ONS estimates, so their figures may be for a spot a few hundred metres away.
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 NW4
NW11 NW9 N3 NW7 NW2 N2 HA8 N12
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.