Planes overhead in EN4
Barnet and Enfield, London. 554 of its 557 postcodes measured, the ones in Barnet and Enfield (9 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 and the planes over Enfield, 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 EN4. Across its postcodes, January to August 2026:
On a day it flies west, 56% of days
Up to 18
a day
Of its 554 postcodes:
- 10 to 99
- 92
- under 10
- 462
On a day it flies both ways, 15% of days
Up to 34
a day
Of its 554 postcodes:
- 10 to 99
- 554
On a day it flies east, 29% of days
Up to 49
a day
Of its 554 postcodes:
- 10 to 99
- 554
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 |
|---|---|---|---|
| EN4 0147 postcodes | 147 under 10 | 147 at 10 to 99 | 147 at 10 to 99 |
| EN4 8224 postcodes | 92 at 10 to 99 | 224 at 10 to 99 | 224 at 10 to 99 |
| EN4 9183 postcodes | 183 under 10 | 183 at 10 to 99 | 183 at 10 to 99 |
Also counted here: Stansted, at most 3 a day over any of its postcodes; Luton, at most 1 a day over any of its postcodes.
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 EN4
N20 N14 EN5 N12 N11 N21 EN2 N13
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.