London Underground ticketing London Underground ticketing The London Underground metro system of London, England uses a mix of paper and electronic smart-card ticketing. London Underground uses Transport for London's Travelcard zones to calculate fares, including fares on the Underground only. Travelcard Zone 1 is the most central, with a boundary just outside the Circle line and Travelcard Zone 6 is the most outlying zone covering any of Greater London and it includes London Heathrow Airport. All of Greater London is covered by zones 1 to 6. Tickets including zone 1 are usually more expensive than those involving only outer zones. The most popular
London Underground ticketing as 'auto top-up'. Tickets and pay as you go credit can be purchased via a website or over the telephone. The Oyster card system is designed to eliminate the need to purchase tickets at the station for most users. Following the implementation of the technology London Underground reduced the number of staff working in ticket offices. Contactless Visa, Maestro, MasterCard and American Express debit and credit bank cards issued in the UK, as well as contactless enabled smartphones and smartwatches using Apple Pay and Android Pay are accepted for travel on London Underground, London Overground, Docklands Light Rail, most National