Mildmay Line hit by severe delays as Notting Hill Carnival crowds build
31 August 2026 · By Boroughly editorial — AI-assisted, human-reviewed.
Severe delays affected the Mildmay Line on Sunday evening as large crowds attending the Notting Hill Carnival caused significant congestion across the network. TfL reported the disruption from around 9 pm on Sunday 30 August, with services running well below normal capacity.
London Underground confirmed it was accepting tickets via any reasonable alternative route during the disruption, meaning passengers were not confined to the Mildmay Line alone. Travellers were advised to allow extra time or consider bus, Overground or Elizabeth line alternatives where possible.
For Chiswick residents heading into central London this Bank Holiday Monday — or returning from Carnival events — it is worth checking live TfL status before setting out, as residual crowding effects can linger into the morning after a major event. The Carnival's Grand Parade traditionally takes place on the August Bank Holiday Monday, so further busy periods on connecting lines are possible throughout the day.
Live service updates are available on the TfL status page. TfL also has journey planning tools that can suggest the quickest alternative route in real time.