USA ESTA

[Austin Prefect]

I've tried to google this but not found it yet.

Does you ESTA just have to be valid on the day you arrive at US immigration or for the whole trip? For example could you arrive on the last day of validity and stay a full 90 days?

[nvubu]

according to this page you are good to go - but not sure I'd test it at the moment.

https://www.estaform.org/faqs/my-esta-application-...

If your flight was delayed you would be buggered.