Tube Strike Disruption: London Underground Action Planned for Late April

Millions of Londoners face significant travel disruption during the final week of April 2026 after tube drivers announced strike action on four days across a two-week period, with planned walkouts on Tuesday 21 and Wednesday 22 April followed by a further two-day period of action on Thursday 23 and Friday 24 April.

The strikes, involving a subset of drivers rather than the full ASLEF membership across the network, are expected to reduce service levels substantially across affected Underground lines during the action. Transport for London has warned passengers that journey times will be significantly longer than normal and urged anyone without an essential reason to travel on the strike days to consider working from home or rearranging their plans.

Bus services, the Overground, the Docklands Light Railway and the Elizabeth line are expected to be significantly busier than usual during the strike period as commuters seek alternative routes. TfL has indicated it will deploy additional capacity on these services where available but acknowledged that they cannot fully absorb the displaced Underground demand.

NHS hospital trusts across London issued guidance to patients with appointments during the strike period, advising them to check before travelling and to allow significantly more time for journeys. Several trusts provided specific advice about alternative transport arrangements and the process for rescheduling appointments that could not be kept due to transport difficulties.

The dispute behind the strikes involves pay and working conditions at the relevant depot, with the drivers’ union arguing that offers made by TfL management had not adequately addressed the concerns that prompted the action. TfL maintained that its offers were fair and reflected the financial constraints facing the organisation following the pandemic-era loss of fare revenue.