Planes overhead in WA11
St Helens, Merseyside. 1,021 of its 1,023 postcodes measured, the ones in St Helens (8 PO boxes and other large-user postcodes left out), January to August 2026.
From Manchester
Planes land and take off into the wind, so the weather decides which way Manchester flies, and that decides how many pass over WA11. Across its postcodes, January to August 2026:
On a day it flies west, 70% of days
Up to 10
a day
Of its 1,021 postcodes:
- 10 to 99
- 1
- under 10
- 1,020
On a day it flies both ways, 10% of days
Up to 12
a day
Of its 1,021 postcodes:
- 10 to 99
- 276
- under 10
- 745
On a day it flies east, 20% of days
Up to 22
a day
Of its 1,021 postcodes:
- 10 to 99
- 629
- under 10
- 392
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 west70% of days | Both ways10% of days | Flying east20% of days |
|---|---|---|---|
| WA11 0330 postcodes | 330 under 10 | 232 at 10 to 99 | 330 at 10 to 99 |
| WA11 7214 postcodes | 214 under 10 | 214 under 10 | 39 at 10 to 99 |
| WA11 8216 postcodes | 1 at 10 to 99 | 216 under 10 | 216 under 10 |
| WA11 9261 postcodes | 261 under 10 | 44 at 10 to 99 | 260 at 10 to 99 |
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 WA11
WA10 WA9 WN4 WN5 WA12 WN3 L35 WA3
The councils
Where these figures come from
Counted from community flight tracking, checked against the CAA's monthly totals for Manchester. 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.