Planes overhead in BR3

Bromley, Lewisham and Croydon, London. All 1,089 of its postcodes measured (36 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 Bromley, 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 BR3. Across its postcodes, January to August 2026:

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.

Planes overhead from Heathrow in BR3, by postcode sector and the way Heathrow flies
SectorFlying west56% of daysBoth ways15% of daysFlying east29% of days
BR3 1241 postcodes53 at 100+1 at 100+241 at 10 to 99
BR3 3278 postcodes278 at 100+215 at 100+276 at 10 to 99
BR3 4264 postcodes166 at 100+78 at 100+264 at 10 to 99
BR3 5182 postcodes164 at 100+9 at 100+182 at 10 to 99
BR3 6124 postcodes124 at 100+84 at 100+124 at 10 to 99

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 BR3

SE20 SE26 SE25 BR1 BR4 SE6 BR2 SE19

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.

How the planes are counted