Piccadilly Line delays between Acton Town and Heathrow this morning
7 September 2026 · By Boroughly editorial — AI-assisted, human-reviewed.
Commuters heading to Heathrow or travelling through Acton Town on the Piccadilly Line are facing disruption this morning after a signal failure at Caledonian Road caused knock-on delays across part of the route.
TfL is reporting severe delays between Acton Town and Heathrow Terminals, with minor delays also affecting the Uxbridge branch of the line. The rest of the Piccadilly Line is running a good service. Status updates are available on the TfL website.
For Chiswick residents, the most practical alternatives for reaching Heathrow include the Elizabeth line from Ealing Broadway, which remains unaffected by this disruption and offers a direct, frequent service to all Heathrow terminals. The District line through Gunnersbury and Turnham Green is another option for reaching central London connections, though travellers should allow extra time.
Anyone with flexible travel plans may want to delay their journey until TfL confirms the signal fault has been resolved. The incident originated at Caledonian Road and TfL engineers are working to restore normal service. Check the TfL status page before setting out, as conditions can change quickly during a live signal failure.