Planes overhead in RM12
Havering, London. All 587 of its postcodes measured (39 PO boxes and other large-user postcodes left out), January to August 2026.
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 RM12. Across its postcodes, January to August 2026:
On a day it flies west, 47% of days
Up to 3
a day
Of its 587 postcodes:
- under 10
- 587
On a day it flies both ways, 18% of days
Up to 22
a day
Of its 587 postcodes:
- 10 to 99
- 358
- under 10
- 229
On a day it flies east, 35% of days
Up to 44
a day
Of its 587 postcodes:
- 10 to 99
- 418
- on an edge
- 15
- under 10
- 154
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 |
|---|---|---|---|
| RM12 4245 postcodes | 245 under 10 | 244 at 10 to 99 | 245 at 10 to 99 |
| RM12 5156 postcodes | 156 under 10 | 12 at 10 to 99 | 49 at 10 to 99 |
| RM12 6186 postcodes | 186 under 10 | 102 at 10 to 99 | 124 at 10 to 99 |
Also counted here: Heathrow, at most 4 a day over any of its postcodes.
On an edge: the postcode is on the edge of a flight path, where a few metres decide whether a plane counts as overhead, and the fewest and the most within 100 m of it fall in different bands.
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 RM12
RM11 RM13 RM10 RM14 RM2 RM7 RM1 RM9
The councils
Where these figures come from
Counted from community flight tracking, checked against the CAA's monthly totals for London City. 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.