US visitors and visitors from Europe, Australia and Canada must apply for permission to enter the UK through a new scheme known as Electronic Travel Authorisation (ETA).
The UK government is in the process of fully digitising UK borders – and the ETA scheme will play its part, allowing “individuals, and carriers, with more assurance at an earlier point in time about their ability to travel to the UK,” the government said in a previous statement. Visitors must fill out an online…

