ESTA is an automated system that allows visitors to travel to the United States under the Visa Waiver Program. As of January 20, 2010, all eligible citizens of countries designated by the Visa Waiver Program must complete the ESTA online application to obtain a travel authorization to the United States. You will not be allowed to board or travel in the United States without ESTA's approval. That's why our website https://www.esta-official.co.uk is here! To make it easy for you to fill out your form, not only that, but also the one for your application from start to finish, follow. Perhaps you are thinking about the differences between Esta and the visa? The answer is no, because ESTA allows you to travel to the United States without applying for the traditional non-immigration visa. However, ESTA is sometimes called by ESTA visa travellers. If you are travelling to the United States for business reasons, a non-immigration business visa is required. If you want to stay permanently in the United States, you must apply for a visa.