Planes over Harrow today
For Heathrow's expansion consultation, open until 22 December 2026.
Whatever your view, these are the figures for Harrow now: the planes from Heathrow counted over each of its postcode districts, and the borough's noise, air and flood figures from official data. They are today's flights on today's routes, not those of a third runway. Sky Score takes no side in the consultation.
Heathrow's consultation page: how to respond, and Heathrow's own documents.
Planes from Heathrow, district by district
Planes land and take off into the wind, so the weather decides which way Heathrow flies, and that decides how many pass over each place. Counted over each postcode, January to August 2026.
Each cell gives the most planes over any one postcode of the district on that kind of day, and counts its postcodes in the busiest band reached; the bar splits all of them by how many planes pass over them a day. Each district's own page goes sector by sector.
| District | Flying west56% of days | Both ways15% of days | Flying east29% of days |
|---|---|---|---|
| HA1888 postcodes | up to 7 a day888 under 10 | up to 11 a day79 at 10 to 99 | up to 13 a day31 at 10 to 99 |
| HA2925 postcodes | up to 5 a day925 under 10 | up to 14 a day85 at 10 to 99 | up to 9 a day925 under 10 |
| HA31,209 postcodes | up to 15 a day289 at 10 to 99 | up to 21 a day1,173 at 10 to 99 | up to 27 a day1,016 at 10 to 99 |
| HA51,050 postcodes | up to 4 a day1,050 under 10 | up to 14 a day603 at 10 to 99 | up to 11 a day96 at 10 to 99 |
| HA7809 postcodes | up to 23 a day413 at 10 to 99 | up to 31 a day809 at 10 to 99 | up to 27 a day806 at 10 to 99 |
| HA81,338 postcodes | up to 44 a day1,338 at 10 to 99 | up to 50 a day1,338 at 10 to 99 | up to 41 a day1,338 at 10 to 99 |
Each district's own page splits it by postcode sector and counts every airport over it.
Noise, air and flood in Harrow
- Aircraft noise band
- LowEstimated from the distance to the airport and its routes, scaled by the size of its DEFRA noise map
- Road noise
- LowDEFRA road Lden, share of postcodes over WHO 53 dB
- Air quality
- ModerateDEFRA background maps against WHO 2021
- Flood risk
- LowEnvironment Agency, Risk of Flooding from Rivers and Sea, allowing for defences
Harrow: every figure we publish, with its score
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.
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.
Aviation noise context: DEFRA strategic noise mapping, Open Government Licence v3.0
Flight routes: UK Aeronautical Information Publication (NATS), derived by Sky Score for the aircraft noise estimate; public but not openly licensed, and not for navigation
Road noise: DEFRA Strategic Noise Mapping Round 4 road Lden, Open Government Licence v3.0
Air quality: DEFRA background pollution maps (PCM), Open Government Licence v3.0
Flood risk: Environment Agency Risk of Flooding from Rivers and Sea, Open Government Licence v3.0