Originally Posted by
Dan Dare
No problem you have everything you need - the ESTA details are linked to your Passport number I believe. I have had no problem with multiple flights to USA and not done anything since first filing online with ESTA.
Are you absolutley sure. I believe that you should "update" the ESTA form online each time you are planning to enter the US (by air). I believe that this has become more stringent of late. I base that on personal experience and that of a colleague who was being denied boarding at LHR on a flight to ORD until she updated online.
I may be wrong ( I remember I was once in 1973), but ......