London’s Required Information


The UK currency is the pound sterling (£/GBP)and there are 100 pence (p) to the pound (£). There are numerous bureaux de change in London – often located inside banks, travel agents or Post Offices, as well as at London’s airports and major train stations. Credit and debit (bank) cards – especially Visa and Mastercard, American Express and Diners Club cards – are widely accepted.
Contactless cards are widely used in the UK and many businesses accept them as payment, up to a limit of £30 per transaction. Travellers can use a contactless card instead of an Oyster card when using public transport in London.
Also, There are plenty of cash machines (also known as cashpoints or ATMs) dotted around London.

Power outlets

Useful information: electricity. The mains voltage is in Barcelona as in the whole of Europe 230 volts AC, plug adapters are hardly necessary. The flat European standard fit into the Spanish sockets. In addition, the Schuko plug CEE 7/7.


If you are taking prescription medication, we recommend that you bring enough to last your entire trip. If you have an existing medical condition and require special treatment or diet you are advised to carry a letter from your doctor, translated into Spanish, indicating the nature of the condition, treatment and medicines required. If any of your medicaments fall in the controlled drugs category, you need to comply with regulations on drugs exports in your own country.

Air travel

London is served by six international airports:
1. Heathrow (LHR)
2. Gatwick (LGW)
3. Stansted (STN)
4. Luton (LTN)
5. London City Airport (LCY)
6. Southend (SEN)

Train travel

The main rail operators connecting the city centre to Greater London and beyond are:

  • SouthEastern Railway
  • Southern Railway
  • London Overground
  • Greater Anglia
  • South West Trains
  • Chiltern Railways
  • London Midland

For more information on train travel to and from London to the rest of the UK and Europe, see our mainline trains to London and Eurostar pages.

Public transport

  • Buses
    London’s iconic double-decker buses are a quick, convenient and cheap way to travel around the city, with plenty of sightseeing opportunities along the way.
  • London Underground
    The London Underground rail network, or “the Tube” is a great way to travel to and from central London and will be an integral part of most people’s stay in the UK capital.
  • Docklands Light Railway
    London’s innovative, driverless Docklands Light Railway (DLR) serves parts of East and South East London.
  • River bus services
    Travelling by river is a great way to get around London. You’ll beat the traffic and enjoy fantastic views of London along the way.
  • Local trains
    Use London’s Overground train network to travel across the city and beyond the Tube.
  • London trams
    Trams run in parts of south London between Wimbledon, Croydon, Beckenham and New Addington. The services are frequent and accessible.
  • Accessible public transport
    Find your way around the capital with our helpful guide to accessible and wheelchair-friendly travel.
  • London cycle hire scheme
    London’s public bicycle scheme is a great way to travel around the city – and the first half hour is free! Grab yourself a bike and get riding today.
  • Taxi
  • From iconic London black cabs to local minicabs, we’ve got all the traveller information you need to help you travel around London by taxi.
  • Emirates Air Line Cable Car
    Take a ride on London’s cable car, for views over Greenwich and East London, including The O2, Cutty Sark and Queen Elizabeth Olympic Park.

Alternative Transport

Also in Barcelona are these popular transportation services:

  • Mytaxi
  • Uber

The Barcelona taxi fleet is modern and all taxi cabs charge using a taximeter. You can pay by credit card in Barcelona taxis or via taxi apps. You can call Barcelona taxi companies by telephone or use apps like MyTaxi to book a taxi online via smartphone – or you can hail Barcelona taxis on the street

Visa and Entry

Normally a foreign visitor should apply for a United Kingdom Visa to enter London.
Following the UK’s decision to leave the European Union, visa-free travel to and from the UK is still in place for EEA and Swiss citizens until 29 March 2019. If a withdrawal agreement is reached between the UK and EU, visa-free travel for short visits is likely to continue for the immediate future.