London Underground train speeds vary across our network, from as slow as 15MPH, up to 60MPH. The speed of the trains can be impacted by a range of factors including the track infrastructure, the type of signalling system, the distance between stations, and the frequency of services in the timetable.

The speed of the London Underground (the “Tube”) varies significantly depending on the line, the section of track, and whether it’s in deep-level “tube” tunnels or on the surface.

Here’s a general breakdown:

Typical Speeds

• Average speed (including stops): 20–25 mph (32–40 km/h). This is what you experience as a passenger from start to finish of a journey.
• Maximum design speed: Most trains are capable of 60–70 mph (96–113 km/h).
• Actual top speed in service: The fastest sections are on the newer sub-surface lines (Metropolitan, District, Circle, Hammersmith & City) and outer parts of lines that run above ground.

Fastest Sections & Lines

• The Metropolitan Line is the fastest overall. On the section between Finchley Road and Wembley Park (where the tracks are in the open and relatively straight), trains can reach their maximum speed of up to 62 mph (100 km/h).
• The Elizabeth Line (though not technically part of the historic Underground and operated separately by TfL) is much faster, with trains reaching 90 mph (145 km/h) on the new central section and surface routes.

Why It’s Not Faster

1. Frequent Stops: Stations in Central London are often less than a kilometre apart, so trains rarely have time to accelerate to top speed.
2. Old Infrastructure: Many lines and tunnels are over 150 years old, with tight curves and gradients that limit speed for safety and comfort.