London Heathrow (LHR): road traffic and approach roads
London Heathrow (IATA LHR, ICAO EGLL) is one of the 28 airports UK Live Traffic watches. The live map shows the aircraft arriving, holding and leaving it right now; this page is about the roads.
Its traffic joins the main roads at M4 J4 (45%), M25 J14 (30%) and M25 J15 (25%). Roughly 45 in every 100 arriving passengers leave by car, taxi or hire car (our own estimate, from the public transport links each airport has to the towns round it), so a busy landing raises traffic on these roads over the hour that follows. On the live map, tapping the airport and then its Road forecast estimates the vehicles that the aircraft which have just landed should put on each junction over the next 90 minutes.
Open London Heathrow on the live map
- Codes
- LHR / EGLL
- Plus Code
- 9C3XFGCW+27
- Approach junctions
- M4 J4, M25 J14, M25 J15
- Leaving by car or taxi
- about 45% of arriving passengers
How busy the approach roads usually are
| Road | Weekdays 03:00 | Weekdays 08:00 | Weekdays 12:00 | Weekdays 17:00 | Weekdays 21:00 | Saturday 12:00 | Sunday 12:00 |
|---|---|---|---|---|---|---|---|
| M4 J4 (M4) | Quiet | Busy | Steady | Busy | Quiet | Busy | Steady |
| M25 J14 (M25) | Quiet | Very busy | Busy | Very busy | Quiet | Very busy | Busy |
| M25 J15 (M4) | Quiet | Busy | Steady | Busy | Quiet | Busy | Busy |
Typical for the hour of the week, from traffic counts: not live. The live map has what is happening now.
Other airports nearby
Ports nearby
Where the figures come from
- Road traffic: Department for Transport road traffic counts (Open Government Licence v3.0), spread over the week with DfT's national hourly pattern.
- Roads and junctions: OpenStreetMap contributors (ODbL), routed with Valhalla.