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
Airports of London - the airport has a single runway, which is very short. As a result, no large aircraft are permitted to use the airport, which initially prevented all long-haul flights. However, since 2009, British Airways has operated a flight to New York JFK, via Shannon, using an Airbus A318. The largest aircraft currently handled at the airport is the Airbus A220-100, with the first commercial flight completed in August 2017 from Zurich. Located only four miles from Canary Wharf, London City Airport is often used by business travellers, with many flights serving destinations across the UK and northern Europe. The airport