1. When traveling to London, you will arrive at Heathrow or Gatwick Airport. The first is more popular, but it is located 25 kilometers from the city. Most often travelers get to the city center by regular Heathrow Express buses, which depart every 15 minutes. The ticket costs £26.50 but if you buy it in advance online, the price drops to £21.50.
But there are much cheaper ways to get to Heathrow - the fast Heathrow Connect train leaves Heathrow every 25 minutes. It will take you to Paddington Station for just £10.10. There is also a tube from Heathrow. There is one station between Terminals 2 and 3, and two more near Terminal 4 and Terminal 5. The fare is £5.70.