Updating ESTA details for second visit to USA

Upvote:2

I experienced this a couple of times within the last years (visiting to the US with an existing ESTA) and there were never any problems. Simply update the information you can update and simply leave the flight number as it is.

I don't think it makes a big difference as there is always the scenario where you're rebooked by the airline to another flight on short notice and wouldn't have a change to update the ESTA information.

Upvote:3

For What information can I update? U.S. Customs and Border Protection has:

Prior to submitting an electronic travel authorization application with the required payment information, you can update all application data fields except the passport number and passport issuing country. Once an application is complete and submitted with all the required payment information, you can still update any one of the following fields:

E-mail address
Address in the U.S.

It is a guess, but I suspect you can't update your travel details because these will be provided automatically through the APIS system.

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