M4 spur (Heathrow) northbound between J4A and M4 | Northbound | Congestion

Location : The M4 SPUR northbound between junctions J4A and M4 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 18:00 and 18:15 on 18 June 2025.
Delay : There are currently delays of 10 minutes against expected traffic.