When to use the train
If you’ve booked a place at a hotel outside the city, or when going from the airport (Heathrow, Gatwick, Stansted), the train is the best way to travel. It is easier to travel to central London from outer cities compared to the underground or car, as you won’t typically get traffic when travelling via train.
There are many train stations in London, where trains go in all directions. Between stations are some overlaps and some are on the same path (Charing Cross trains travel via London Bridge), but stations are essential for travel, so they are shown in the table below. Charing Cross is right next to Trafalgar Square, with about 10 minutes walking distance from Piccadilly Circus, so trains are also a good option to get to destinations in central London.