Planes overhead in EN3
Enfield, London. All 977 of its postcodes measured (26 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 Enfield, council by council.
From London City
Planes land and take off into the wind, so the weather decides which way London City flies, and that decides how many pass over EN3. Across its postcodes, January to August 2026:
On a day it flies west, 47% of days
Up to 15
a day
Of its 977 postcodes:
- 10 to 99
- 440
- under 10
- 537
On a day it flies both ways, 18% of days
Up to 16
a day
Of its 977 postcodes:
- 10 to 99
- 460
- under 10
- 517
On a day it flies east, 35% of days
Up to 15
a day
Of its 977 postcodes:
- 10 to 99
- 521
- under 10
- 456
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 west47% of days | Both ways18% of days | Flying east35% of days |
|---|---|---|---|
| EN3 4215 postcodes | 215 under 10 | 215 under 10 | 215 under 10 |
| EN3 5234 postcodes | 73 at 10 to 99 | 91 at 10 to 99 | 137 at 10 to 99 |
| EN3 6317 postcodes | 317 at 10 to 99 | 317 at 10 to 99 | 317 at 10 to 99 |
| EN3 7211 postcodes | 50 at 10 to 99 | 52 at 10 to 99 | 67 at 10 to 99 |
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 EN3. Across its postcodes, January to August 2026:
On a day it flies west, 56% of days
Up to 10
a day
Of its 977 postcodes:
- 10 to 99
- 1
- under 10
- 976
On a day it flies both ways, 15% of days
Up to 7
a day
Of its 977 postcodes:
- under 10
- 977
On a day it flies east, 29% of days
Up to 5
a day
Of its 977 postcodes:
- under 10
- 977
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 |
|---|---|---|---|
| EN3 4215 postcodes | 1 at 10 to 99 | 215 under 10 | 215 under 10 |
| EN3 5234 postcodes | 234 under 10 | 234 under 10 | 234 under 10 |
| EN3 6317 postcodes | 317 under 10 | 317 under 10 | 317 under 10 |
| EN3 7211 postcodes | 211 under 10 | 211 under 10 | 211 under 10 |
Also counted here: Stansted, at most 3 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 EN3
The councils
Where these figures come from
Counted from community flight tracking, checked against the CAA's monthly totals for London City and 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.