Transport for London (TfL) is asking customers to check before they travel ahead of planned strike action on the London Underground by RMT union Tube drivers.
The action is related to dialogue between TfL and RMT around proposals for a four-day working week, ongoing since March 2025. TfL is urging the union to call off their action and continue to work together on proposals to pilot a four-day week for train operators.
Strike action affecting the London Underground has been called between Tuesday 21 April and Friday 24 April. Should the strikes go ahead, there is expected to be some service on most lines, but with significant disruption. The level of service on each line will vary across the London Underground network.
On these days, all other London Underground staff will be working, and other TfL services including Elizabeth line, DLR, London Overground, and Trams will be running normally. However, they are likely to be very busy. The vast majority of buses will be running normally throughout these strikes, but seven routes operated by Stagecoach will be affected by a separate strike between 05:00 Friday 24 April and 05:00 Saturday 25 April. Other buses will run as usual.
This strike action, the first in a series of planned strikes between April and June, will begin at 12:00 on Tuesday 21 April, with a normal service expected until mid-morning. The action will finish at 12:00 on Friday 24 April and customers should expect disruption into the afternoon and early evening. Customers are advised to check their travel daily on TfL Go.
TfL Graphic – Industrial Action on London Underground
Daily travel impact
Tuesday 21 April & Thursday 23 April:
- Tube services will run normally in the morning, then reduce from mid‑morning onwards.
- There will be significant disruption from midday when strike action starts.
Wednesday 22 April & Friday 24 April:
- Strike action will continue until midday, with significant disruption expected.
- Services will begin to recover from midday, but disruption will continue into the evening.
Services expected to run
A reduced service will run across most lines but significant disruption is expected
No service expected on the Piccadilly and Circle lines. No service expected on the Metropolitan line between Baker Street and Aldgate. No service expected on the Central line between White City and Liverpool Street
Any services that do run will be less frequent, very busy, and you may not be able to board the first train
Customers should plan ahead and leave more time for their journeys. TfL also urges customers to check travel options on the day as actual service will vary across each line. Customers are advised to visit tfl.gov.uk/strikes for the latest information.
Image credit: Transport for London
