Originally Posted by
Lux Flyer
Almost all TATL.
img
Though I guess we could debate whether that qualifies as truly TATL since it doesn't go all the way to continental Europe. For OP, where it says seats you can click that in the flight search results and it will expand to show you the layout for the specific aircraft you're on..
In addition to the questionable "T" qualification, that route doesn't do J, only O. But UA has no lie-flat O. So seems like the definitions are starting to get very blurred for that point.