Find traffic updates, service providers, tools & more
The M4 in Greater London is closed westbound between J3 near (Feltham) and J4B (M25 interchange) near Heathrow Airport following a vehicle collision.
The M4 in Greater London is closed westbound between J3 near (Feltham) and J4B (M25 interchange) near Heathrow Airport following a vehicle collision.
The M4 in Greater London is closed westbound between J3 near (Feltham) and J4B (M25 interchange) near Heathrow Airport following a vehicle collision.
⏱ Still active — no changes from National Highways. Incident ongoing for 39 minutes. Monitoring continues.
The M4 in Greater London is closed westbound between J3 near (Feltham) and J4B (M25 interchange) near Heathrow Airport following a vehicle collision.
⏱ Still active — no changes from National Highways. Incident ongoing for 1h 19m. Monitoring continues.
✅ Incident cleared — M4 reopened at 18:00 on 22 Jul 2026. Total disruption: 1h 19m. All lanes open, traffic returning to normal.
The M4 in Greater London is closed westbound between J3 near (Feltham) and J4B (M25 interchange) near Heathrow Airport following a vehicle collision.
Wording as published by National Highways, recorded as it changed.
Enter when you were travelling on M4 to check