The opening of the Northern line extension to Battersea has caused a change to the list of Cross London Interchanges that are permitted for people using National Rail.

A Cross London Interchange is a ticket that allows someone to travel by train into London, and cross London to another National Rail terminus using the London Underground or DLR. So for example, someone travelling between Hastings and York with an interchange ticket could arrive from Hastings at London Victoria and their ticket will be valid on the tube to get to Kings Cross St Pancras station to then complete their journey to York.

There’s a limited number of Tube/DLR stations that can be used for these cross-London tickets, and Battersea Power Station on the Northern line extension has been added to the list.

Although Battersea Power Station, at the end of the Northern line, is not an obvious location for someone to use when crossing London between National Rail stations, it is in fact an Out-of-Station Interchange (OSI) with nearby Battersea Park mainline rail station, which is about 10 minutes walking distance away.

Because there’s an OSI between Battersea Park and Battersea Power Station, the new tube station has been added to the list of stations valid for a cross-London journey using a valid national rail train ticket.

This is candidly very high up the rankings of obscure usage, and anyone travelling through London on the railway through Battersea Park station would find it far more convenient to use London Victoria for their cross-London journey.

But, the option now exists, and I am sure someone out there will now be keen to try it out, just to say they have.

To check if the cost of travel across London is included in your ticket, look for the ‘ ‘ symbol which will be shown in the tickets ‘Route’ information.


List of London Underground and DLR Stations between which single/return tickets valid for travel ‘via London’ may be used – subject to the route of the through journey being made.

  • Aldgate
  • Amersham
  • Baker Street
  • Balham
  • Bank
  • Barking
  • Battersea Power Station
  • Blackfriars
  • Blackhorse Road
  • Brixton
  • Canada Water
  • Cannon Street
  • Charing Cross
  • Ealing Broadway
  • Edgware Road
  • Elephant & Castle
  • Embankment
  • Euston
  • Euston Square
  • Farringdon
  • Finsbury Park
  • Greenwich (DLR)
  • Highbury & Islington
  • Kensington Olympia
  • Kentish Town
  • Kings Cross / St Pancras
  • Lancaster Gate
  • Lewisham (DLR)
  • Limehouse
  • Liverpool Street
  • London Bridge
  • Marylebone
  • Moorgate
  • Old Street
  • Paddington
  • Queens Park
  • Richmond
  • Seven Sisters
  • Shadwell
  • Shepherds Bush
  • Southwark
  • Stratford
  • Stratford International (DLR)
  • Tottenham Hale
  • Tower Hill
  • Upminster
  • Vauxhall
  • Victoria
  • Walthamstow Central
  • Waterloo
  • West Brompton
  • West Ham
  • West Hampstead
  • Whitechapel
  • Wimbledon
  • Woolwich Arsenal (DLR)

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  1. David Woodcock says:

    Guess who originated the use of the “+” symbol and produced the original list (updated many times since) of permitted interchange stations. That’s right, yours truly.

  2. Anthony Tull says:

    Why is Monument not on the list as it’s 2 minutes walk from Charing Cross. It would be quicker to walk it than to change onto Bakerloo or Northern line for some people, especially those who don’t copy well with Crowded Areas.
    Monument is also walkable to Waterloo, it’s a little further, and the train would be quicker, but of it’s a nice day and you’ve got the time, why not? It also adds to the daily step count.

  3. Carllo says:

    Anthony:I think you are confusing Monument with Embankment which IS on the list.

  4. Morda says:

    This was like a month ago or more?

  5. Max says:

    Did they not quietly remove osi s to make more money ? I travel on south western to Waterloo and change for jubilee line and it has been counting it as 2 separate journeys

    • ianVisits says:

      Depends on how you are paying for your ticket – a single to Waterloo followed by a single on the Jubilee is two separate trips – but if your ticket to Waterloo includes the Underground, then it should count as a single ticket, as Waterloo is not an OSI for the Jubilee line anyway – they are one station, not an out of station interchange.

  6. VE says:

    I do not see Clapham North for Clapham High Street on the overground.

    • ianVisits says:

      Correct, you don’t. As neither would be suitable for a Cross-London interchange ticket.

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