Overview
London's public transport network is one of the world's most comprehensive, operated primarily by Transport for London (TfL). As a visitor, you can move seamlessly across the city using an integrated system of underground trains (the Tube), buses, trams, light rail, and suburban railways. All these services use the same payment system, so you can plan a journey that combines multiple modes of transport without buying separate tickets. The quickest way to get around is usually by Tube or train, though buses are frequent and let you see the city above ground.
To ride end-to-end: tap your Oyster card or contactless bank card at the reader when you enter the station or board a bus, and tap again when you exit. Your fare is calculated automatically based on distance and time of day. For buses, you only need to tap once when boarding. Most journeys take 20–60 minutes depending on zones crossed.
The network
London Underground (the Tube)
The London Underground, colloquially known as the Tube, was the world's first rapid transit system, opening in 1863. It carries nearly 50% of London's commuters and more than 3 million passengers travel on it every day. The network has 11 lines, most of which connect the suburbs to Central London and form a dense network in the centre, linking major railway stations, business areas and landmarks. The Tube serves North London much more extensively than South London due to historical geography and geology; South London is served primarily by surface railways.
The 11 Underground lines are the Bakerloo, Central, Circle, District, Hammersmith & City, Jubilee, Metropolitan, Northern, Piccadilly, Victoria and Waterloo & City lines. More than 1 billion passenger journeys are made on the Underground annually.
Docklands Light Railway (DLR)
The DLR is an automated light metro system serving the Docklands area of east London. It uses the same fares system as the Underground and has interchanges with it, making it easy to combine with other transport. The system has five main branches connecting the Isle of Dogs and Royal Docks to the City of London, Stratford, Woolwich and Lewisham south of the river. It also serves London City Airport and Stratford International. The DLR carries over 101 million passengers per year, with its most heavily used stations being Bank, Canary Wharf, Canning Town, Lewisham and Woolwich Arsenal.
Tramlink
Tramlink is a tram and light rail system serving Croydon and surrounding areas in the south of London, across the boroughs of Bromley, Croydon, Merton and Sutton. It has 39 stations along 28 km (17 miles) of track, using a mixture of street-level shared track, dedicated track in public roads, and off-street track on former railway lines. The system connects with the Underground, London Overground and National Rail services. Tramlink carried over 28 million passengers in 2011.
London Buses
London has an extensive bus network serving all areas of the city not directly served by rail. Buses are frequent and run 24 hours on many routes, allowing you to travel above ground and see the city. Fares are the same as Underground fares and you can use your Oyster card or contactless payment. There is no need to tap out when you exit a bus—you only tap your card when you board.
London Overground
The London Overground, operated by TfL, provides suburban rail services connecting outer areas of London. It integrates with the Underground and other rail services, and accepts the same Oyster and contactless payment system.
Elizabeth line
The Elizabeth line is a major new rail service operated by TfL that serves central London and beyond. It passes through Paddington and Liverpool Street stations and integrates with the wider London rail network.
London River Services and ferries
TfL operates river ferry services on the Thames, providing an alternative and scenic way to cross the city.
National Rail suburban and regional services
Beyond TfL's services, suburban and regional trains operated by private rail companies serve the wider Greater London area. There are 18 major railway stations providing suburban, intercity, airport and international services. Terminal stations include Cannon Street, Charing Cross, Euston, Fenchurch Street, King's Cross, Liverpool Street, Marylebone, Moorgate, Paddington, Victoria and Waterloo. Through and mixed stations include Waterloo East, City Thameslink, Old Street, Vauxhall, St Pancras, Blackfriars and London Bridge. These services use TfL's Oyster card system for fares within London zones.
Tickets & fares
Oyster card and Contactless payment
The easiest way to pay for public transport in London is with an Oyster card (a reusable smartcard) or a contactless bank card. You can use Visa, Mastercard or similar contactless cards from your home country, or buy a Visitor Oyster Card before your trip. When you tap either at the yellow readers at station gates or bus doors, your fare is deducted automatically. Your fare is capped daily—meaning you never pay more than the equivalent of a daily Travelcard, even if you make many journeys.
A Visitor Oyster Card can be purchased before arrival for approximately £16.60 (starting price around $36 USD), and can be topped up for reuse. It works on the Underground, Overground, buses, DLR and tram services, and covers airport transfers from Heathrow and London City airports.
London Day Travelcard
A London Day Travelcard is a paper ticket for unlimited travel across all London public transport (Underground, Overground, buses, DLR and trams). These are available for 1, 2 or 3-day periods, with options for Zones 1–4 or Zones 1–6 coverage. Prices start from approximately £23 ($23–36 USD equivalent). Day Travelcards do not cover Gatwick Airport transfers.
Zones and fares
London is divided into concentric fare zones, with Zone 1 covering central London. Fares depend on how many zones you cross and what time of day you travel. Peak fares apply to weekday mornings (typically 06:30–10:00) and evenings (16:00–19:00); off-peak fares are lower. Your daily fare is automatically capped, so you pay no more than the daily maximum even if you make multiple journeys.
Children's fares
Children under 11 travel free on most London public transport. Children aged 11–15 receive a 50% discount.
Where to buy tickets
Visitor Oyster Cards and London Day Travelcards can be purchased before your trip through international retailers such as VisitBritain Shop and shipped to you, ensuring you have them ready when you arrive. You can also buy Oyster cards and Travelcards at ticket offices in every major station in London. Contactless bank cards require no pre-purchase and work immediately upon arrival.
From the airport
London Heathrow Airport (LHR)
Heathrow is London's main airport and the second-busiest in the world for international passenger traffic. The quickest and most popular public transport option is usually by train or Tube. The Heathrow Express train provides a fast connection into central London, and the Tube (Piccadilly line) also serves all terminals. Oyster cards and contactless payment cards work at Heathrow, including for airport rail transfers. Leave plenty of time to get from the airport to your destination—at least 90 minutes to 2 hours is recommended.
London Gatwick Airport (LGW)
Gatwick is London's second-busiest airport, with two terminals (North Terminal and South Terminal) serving many domestic and European destinations. It has direct rail connections to central London. Note that Day Travelcards do not cover Gatwick Airport transfers, so you will need to purchase a separate ticket or use a Visitor Oyster Card.
London Stansted Airport (STN)
Stansted handles many short-haul European flights. It has public transport connections to central London including train services.
London Luton Airport (LTN)
Luton Airport is approximately 30 miles from London and serves many European destinations. Public transport to central London involves a shuttle bus to Luton Airport Parkway railway station, then a train to London St Pancras, or alternatively a bus from the airport to London Victoria.
London City Airport (LCY)
London City Airport is only 3.5 miles (5.6 km) from Canary Wharf in east London. It handles short-haul flights from other major European cities and some holiday routes. Onward travel is via Docklands Light Rail, local buses, taxi or minicab.
London Southend Airport (SEN)
Southend Airport has flights from several European destinations including Paris and Amsterdam. There is a railway station at the airport, though journeys into central London can take more than an hour and there are few direct bus links to London.
Etiquette & customs
Queuing and standing
Londoners queue orderly for trains, buses and at ticket offices. When boarding a train or bus, allow passengers to exit before boarding, and queue for your turn to enter.
Escalators
On escalators in London Underground stations, stand on the right side and keep the left side clear for people who wish to walk up or down. This is an important custom—standing on the left can be seen as blocking other passengers.
Priority and quiet seating
Designated priority seats (often marked with blue or with symbols) are reserved for elderly passengers, pregnant women, people with disabilities, and parents with young children. If you are able-bodied and the train or bus is crowded, offer your seat to someone who needs it. Quiet cars and quiet zones on some services request that passengers refrain from loud conversations and phone calls.
Eating and drinking
Eating on the Tube (Underground) is discouraged and can result in fines. Drinking alcohol on any public transport is illegal. You may eat and drink on buses, trains and other services, but do so discreetly and clean up after yourself.
Rush-hour behaviour
During rush hours (typically 07:00–10:00 and 16:00–19:00 on weekdays), public transport is very crowded. Expect to stand and be patient. Avoid blocking doors or escalators, and keep your bag close to avoid accidentally hitting other passengers in tight spaces.
Official links
Always check the TfL website for live service updates, journey planning and current fares before you travel, as service changes and engineering works are common, especially on weekends.