You need to say which airport; London has quite a few airports - three major ones (Heathrow, Gatwick and Stansted) and several smaller ones.
In general, the easiest way is to jump in a taxi - but this will be expensive. If you can get to the underground system (Heathrow has its own stations) then you can get a train to London Bridge station.
36.8 miles
The London Bridge in Lake Havasu Arizona was bought by Robert McCulloch for $2,460,000
Which train will go to Wolverhampton from terminal 4 of London Heathrow Airport
Most would fly into either London Heathrow or Gatwick Airport.
The River Thames in London
London City airport is nearest to the US embassy in London.
Tower bridge, houses of parliment... When you go from the city of london to wesminster, you go over a bridge. That river is the thames
The airport code for London Luton Airport is LTN.
London bridge
38
First comes London Heathrow Airport, followed by London Gatwick Airport, Manchester Airport, London Stansted Airport, London Luton Airport.
London or Lake Havasu City Arizona.