Mildmay Line hit by severe delays and reduced service today
26 June 2026 · By Boroughly editorial — AI-assisted, human-reviewed.
Chiswick residents using the Mildmay Line are facing a difficult Thursday, with TfL reporting both severe delays and a reduced-frequency service throughout the day.
The disruption runs in two tiers. Between Willesden Junction and Clapham Junction, TfL is reporting severe delays caused by train cancellations. Across the rest of the line, services are running less frequently than normal as operators apply hot-weather mitigation measures to protect the infrastructure in today's extreme heat. TfL live status
The Mildmay Line connects Chiswick through Gunnersbury and Kew Gardens northward toward the Elizabeth line interchange at Acton Main Line, so delays between Willesden Junction and Clapham Junction will affect a wide stretch of that corridor.
Residents planning to travel today are advised to check the TfL status board before leaving the house, allow extra time, and consider bus alternatives where possible. The Elizabeth line and District line remain options for some journeys into central London, subject to their own conditions. Checking the TfL Go app for real-time updates before any journey is strongly recommended on a day like this.