Geert Wilders, creator of the controversial film 'Fitna', which suggests a link between the Islam's holy book and terrorism, sent the Associated Press a text message confirming he would be returned home within the hour.
The British government had warned Wilders he was not welcome because he posed a threat to "community harmony and therefore public security."
But Wilders criticized the travel ban as an attempt to stifle freedom of speech and traveled to Britain on a point of principle.
The Dutch government has protested the ban, and the Netherlands' ambassador to Britain waited for Wilders at Heathrow Airport to offer assistance.
Wilders is being prosecuted in the Netherlands for hate speech after calling for a ban on the Koran.