London faces major transport chaos in May 2026 after the RMT union confirmed strike action across the Underground network that could bring large parts of the capital's Tube system to a standstill.
The union has set specific dates for the industrial action, though Transport for London is still assessing which lines will be worst hit. Millions of commuters are being urged to monitor official updates closely as the strike approaches.
The Elizabeth Line's status during the walkout remains unclear. Whilst it operates independently from traditional Tube services, its connections to major transport hubs could trigger widespread knock-on effects for passengers relying on the line.
The strike threatens to paralyse daily life across London, hitting businesses, tourism and major events. Previous industrial action has caused severe road congestion, overwhelming demand for buses and a surge in taxi bookings. TfL is expected to announce emergency measures including enhanced bus services and alternative walking and cycling routes.
The dispute centres on long-running disagreements over pay, pensions and working conditions. The RMT has repeatedly raised concerns about staffing levels and proposed cuts to employee benefits, sparking a series of strikes in recent years. Both sides are expected to hold further talks in a bid to avert the disruption.