Originally Posted by
jimmac
I just checked my IAH-EZE flight and I asked on the UA forum and the flight is with lie flat beds. That will give me a nice nap on the way down from IAH.

^
Good news but be aware that UA do tend to change equipment at the drop of a hat.
We were expecting old F on our UA flight and were pleased to see it was new F that was substituting. That was on a 777 on the ORD-GRU route so maybe the 767s are more reliable.