Free wifi on London transport: where it works and how to connect

Free wifi on the Underground sounds like an advertising promise, but in London it is a real service with a precise list of locations and rules.

Where it works

According to Transport for London, free wifi is available at all Tube stations. Most London Overground stations have it too — Sky's The Cloud covers 81 of them. It also works at all Elizabeth line stations under central London and at Victoria Coach Station. The network is certified Friendly WiFi, with content filtering for safer browsing.

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How to connect

Nothing to type. Turn wifi on and the device connects to your own provider's service: EE WiFi-Auto, Wifi Extra on O2, Three_WIFI, VodafoneWiFi, and The Cloud on the Overground. It takes a few seconds, longer at busy times. If you did not connect before boarding, wait until the next station rather than trying on a moving train.

Why the signal drops in tunnels

Wifi covers platforms, not tunnels. In a tunnel there is no signal and the device reconnects at the next wifi-enabled platform. Mobile coverage is separate: TfL does not charge for it — you pay your mobile provider, so questions about it go to them.

Which tunnels have mobile coverage

On the Elizabeth line, 5G runs in the tunnels between Royal Oak and Whitechapel and between Custom House and Woolwich, including the Plumstead portal to Woolwich. On the Northern line: Archway to Leicester Square, Belsize Park to Leicester Square, Embankment to Charing Cross, and Clapham Common. The Piccadilly line covers Hyde Park Corner to Russell Square; the Victoria line has 5G between Green Park and Euston; the Jubilee line runs Westminster to Canning Town; and the Central line, Shepherd's Bush to Bank.

Outside London

There is no single national free network. Access outside the capital's transport is provided by individual operators, stations, venues and councils on their own terms. Rather than hunting for "wifi across the country", check three things locally: what your mobile provider gives you in public places on your tariff, whether your local library offers free access, and which networks your rail operator runs at its stations.

On any open network

An open network is open to everyone. Avoid banking and card details over public wifi and use mobile data for those instead, and check the network name — look-alike hotspots appear in busy places.

A practical point for commuters: because coverage is station-by-station, anything that needs a stable connection — a video call, a large upload, a bank transfer — is better finished on the platform than started on the train. Messages and email queue up quietly and send themselves at the next station, but a call will drop as soon as the train enters the tunnel.

And if you travel the same route daily, it is worth knowing which of your stations are covered: on a line with tunnel coverage you keep a signal between stops, while on an uncovered stretch the only connected moments are the platforms themselves.