London Underground · Line guide

Piccadilly line

The deep-tube line that links Heathrow Airport to the heart of London, the West End and out to Cockfosters in the north.

Is the Piccadilly line running today?

This page covers the Piccadilly line in depth — route, stations, history, step-free access and quirks. For the live answer right now, including the current TfL status (Good Service, Minor Delays, Severe Delays, Part Closure or Suspended) and any reported disruption, see the live network status board on the homepage. It's refreshed every 60 seconds from TfL Open Data.

Check live Piccadilly line status →
Opened
1906
Stations
53
Termini
Cockfosters ↔ Heathrow Terminals 2 & 3 / 4 / 5, Uxbridge
Map colour
Dark blue
Heathrow service
Yes — all four passenger terminals
Night Tube
Yes — Friday & Saturday

The Piccadilly line is the deep-tube line that serves Heathrow Airport, and the most popular way for visitors to enter London from the airport. It runs from Cockfosters in the north, through the West End at Piccadilly Circus, Leicester Square and Covent Garden, out through Earl's Court and on to all four passenger terminals of Heathrow — with a branch to Uxbridge. New trains are arriving from 2025 onwards, the first major fleet replacement on the deep-tube network in a generation.

Where it runs

From north to south-west, the Piccadilly runs from Cockfosters in north London, through Wood Green, Manor House, Finsbury Park, King's Cross St Pancras, Russell Square, Holborn, Covent Garden, Leicester Square, Piccadilly Circus, Green Park, Hyde Park Corner, Knightsbridge, South Kensington, Gloucester Road, Earl's Court, Hammersmith, Acton Town, Hounslow and splits to:

A bit of history

The Great Northern, Piccadilly & Brompton Railway opened in 1906 between Hammersmith and Finsbury Park. The "Piccadilly line" name dates from the 1930s. Extensions in the 1930s pushed the line north to Cockfosters and west to Hounslow, with stations including Sudbury Town and Arnos Grove that are considered landmarks of 1930s modernist architecture — designed by Charles Holden in a distinctive style influenced by Scandinavian and Dutch design.

The Heathrow extension opened in stages: 1977 (Heathrow Terminals 1, 2 & 3), 1986 (Terminal 4), and 2008 (Terminal 5).

New Piccadilly line trains

The Piccadilly is the first deep-tube line to receive a new generation of trains under TfL's "New Tube for London" programme. The new 2024 Stock — manufactured by Siemens in Vienna — features walk-through carriages, air-conditioning for the first time on the line, wider doors, and significantly improved accessibility. Trains began entering service in stages from 2025, replacing the 1973 Stock that has been operating the line for over half a century.

Notable stations

Step-free access

Step-free Piccadilly line stations include Heathrow Terminals 2 & 3, 4, and 5, Hammersmith, South Kensington (Elizabeth-line side only), King's Cross St Pancras, Cockfosters, Southgate and a number of outer stations. The central deep-tube section has limited step-free coverage; the new trains will improve in-vehicle accessibility, but the platform-to-train gap remains a constraint on many central stations.

Hours and Night Tube

The Piccadilly runs from around 05:30 on weekdays until just after midnight. The Night Tube runs on Friday and Saturday nights between Cockfosters and Heathrow Terminal 5 (the main route), but does not serve Terminal 4 overnight. For Terminal 4 at night, transfer at Hatton Cross.

Common quirks

Always check the destination at Acton Town.Westbound trains divide for Heathrow (3 different terminals) or Uxbridge. The platform indicator will show the destination — boarding the wrong train can mean a 20-minute backtrack.

Other lines

Guides

What every Tube status means

"Good Service", "Minor Delays", "Severe Delays" — what TfL's words actually translate to.

First-time guide to the Underground

How the Tube works for visitors and new Londoners — fares, platforms, etiquette.

Step-free Tube stations

The full list of step-free stations and what "step-free" actually covers.

Fares, zones and contactless

How TfL fares work, the zone system, and what to use to pay.

Night Tube — what runs and when

Which lines run overnight, on which nights, and how to get home when they don't.

Plan a journey

Door-to-door route planner across Tube, Overground, Elizabeth line, DLR, buses and walking.

Live TfL line status

Every line at a glance — links and status terminology, with the live status board one tap away.