Originally Posted by superflush

Maybe this clarifies it:

"First and business class customers connecting on the same day of travel, or before 6am the following day, can access the lounge when traveling between an international long haul (a oneworld international long haul flight is defined as an international flight marketed and operated by any oneworld carrier with a scheduled flight time longer than five hours) and an international short haul or domestic flight (and vice-versa)."

From http://onemileatatime.boardingarea.c...l-itineraries/