I just saw a post that milepoints members can use GOGO wifi for free on select United and AA flights. I am new here. How do I get a password and/or login to use the service on board? I am registered on this site. Is this also offered on international flights originating or travelling to the US? Is there a way to find out in advance if the flights I am booking have GoGo? Would appreciate a reply asap, as I am leaving for 30 days on May 13. Thanks.