Can ESTA be extended or renewed?

You do not need specific travel plans when you are applying for an ESTA, you just need to fill in the address where you will be staying. If you’re travelling around the U.S. then you can just write the first place you’re staying at as a point of reference.

It is not compulsory to print and bring your ESTA but it is recommended as a precaution. When your ESTA form is processed and authorised, you can see this immediately by checking your form. The procedure is normally complete within minutes, but may occasionally take longer.

If your name has changed but you have not yet submitted your application, then you should make your changes and submit it. Although the form can be completed in minutes and the process of obtaining authorisation is usually quick, the U.S. authorities recommend completing the form at least 72 hours prior to your flight, or at the time of booking.