London's legendary Tube network remains the quickest and easiest way to get around the city, though it is best avoided during rush hour. The famous red buses are a more pleasant, if slower, way to get around. The ubiquitous black cabs are excellent but Uber and other taxi apps are also popular. London's main attractions are fairly close to one another; if the weather is nice, walking or taking a riverboat are good options. Driving is not a good option in central London, as parking is difficult to find and very expensive. A 'congestion charge' is also payable by those driving into central London from Monday to Friday 7am-6pm.
GMT (GMT +1 from last Sunday in March to the last Sunday in October).
The electrical current in the UK is 240 volts, 50Hz. Flat, three-pin plugs are standard.
The currency is the British Pound (GBP), which is divided into 100 pence. ATMs are available in almost all towns and Visa, MasterCard, and American Express are widely accepted; visitors with other cards should check with their credit card companies in advance. Foreign currency can be exchanged at bureaux de change and large hotels, however better exchange rates are likely to be found at banks.
The international country dialling code for the UK is +44. Mobile phone coverage is extensive and free wifi is widely available in pubs and coffee shops.
The quickest way into London is on the Heathrow Express train, which leaves every 15 minutes for Paddington station, takes 15 minutes, and costs £22 if booked online or at a ticket machine, or £27 on-board, if travelling during off-peak times. Paddington has good connections to the other London railway stations and all parts of London via the London Underground. Heathrow is also on the Piccadilly underground line, which takes passengers into central London in around 50 minutes. The National Express coach service runs to central London and other towns and cities throughout the UK.
Car rental options include Avis, Budget, Europcar, Hertz, National and Sixt.
London's black taxis service Heathrow Airport; the journey time to central London is around 30-60 minutes, depending on traffic. Taxis are metered, the fare from Heathrow Airport to Central London will cost around £48-£90. Taxis are available from outside each terminal.
Terminal 1 is no longer in use. Terminals 2 and 3 are within walking distance of each other, with an average walking time of 11 minutes from one end to the other. Terminals 4 and 5 are connected via the free Heathrow Express train. Allow around 15 minutes for the journey time between terminals.
There are numerous shops, bars and restaurants, ATMs, currency exchange facilities, left luggage facilities, pharmacies and postal services in all terminals. A spa offering massages is located in Terminal 5. There are VIP Lounges in Terminals 2 and 3. There are multi-faith prayer rooms in each terminal and St George's Chapel is located close to the central bus station between Terminals 2 and 3. There are shower facilities located in Terminal 3.
Short-term parking is available adjacent to the airport. A free shuttle service links the terminals and the long-term and business car parks. Valet parking is also available at all terminals.
Free wifi is available; sign up with Heathrow Rewards to get faster service.