The massive convoy, which is made up of 15 vehicles, stopped traffic as it made its way through the capital.
The footage was filmed yesterday afternoon on St Pancras Way in practice for the visit.
He and his wife Melania are expected to fly into London tomorrow afternoon after attending a NATO summit in Brussels.
From there, he is expected to travel straight to Blenheim Palace in Oxfordshire, where Theresa May will host a black-tie dinner with Ministers and around 100 guests.
From there, the couple will travel by helicopter to the American ambassador's residence in Regent's Park, where they will be staying.
Donald Trump's huge motorcade has been spotted travelling through the streets of London
As this is a working visit, instead of a state visit, he will not be staying at Buckingham Palace.
Instead, he will meet the Queen at Windsor Castle on Friday afternoon, after visiting a defence site with Mrs May to watch a demonstration of the UK's military capabilities and 'integrated US military training'.
He will also travel to Chequers to have talks about foreign policy, which will include trade.
Donald Trump is expected to fly into London tomorrow afternoon, before travelling straight to Blenheim Palace
Donald Trump is expected to avoid London after tens of thousands said they would protest
Trump is expected to avoid central London, after tens of thousands said they would protest against his visit.
Protestors have also crowdfunded a giant blimp of Trump as a baby, which has been authorised to fly over Parliament Square on Friday morning.