While London City Airport is the nearest to the city's heart breaker, you won't find a lot of departures from the USA arrival there,

Everything is pressed, so the most ideal way to decrease the time you spend holding up in long lines is to purchase advance buy tickets for attractions -, for example, the London Eye or Tower of London - and appear ahead of schedule for your time allotment,

To get around the city on London's famous Tube lines and red transports, purchase a Visitor Oyster travel smartcard