What Is the Difference Between a Visa and an ESTA?
To get things straight: a visa and an ESTA aren't the same thing. First, if you want to apply for the ESTA system, your country must be part of the US's Visa Waiver Program (thankfully, the UK is).
Countries that aren't part of the Visa Waiver Program must file for a visa. Now, what's the difference between an ESTA and a US visa? Let's cover them in the following categories:
Application Process
Submitting an ESTA Application is much faster and easier than with a US visa. With an ESTA application, all you have to do is go into the ESTA website, fill in your personal information, and answer some questions.
Once you pay for ESTA's fees, the US administration department will review your new application within 72 hours.
On the other hand, getting a visa as a travel authorisation document is harder. First, you must determine whether you need a guest visa, an exchange visa, or a student visa (although there are other types of non-immigrant visas).
Unlike an ESTA application, the US administration department can take up to 180 to assign you an appointment for your interview. Moreover, the cost to apply for a non-immigrant visa is much higher than an ESTA.
Validity Period
An ESTA Visa is valid for up to two years. You can visit New York as many times as you want during this period, although you can't stay in the country for over 90 days at a time.
On the contrary, depending on how much time you get on your visa, it can be valid from one month up to 10 years. Here, you can stay for up to six months at a time, which is much longer than with an ESTA.
Expiration
The ESTA website requires people to renew their document every two years. Moreover, if the person received an emergency or temporary passport, they must renew their ESTA approval too.