to all intents and purposes and for discussion, UA does not sell biz class in domestic flights. in intl flights, they do not ug biz to first at all. seen biz full, and first empty iad-europe many many times. they don't even put the employees in first.

only other experience i havve is LH. NO ug biz to first in intl. maybe honor get UG.

negotiated fares are just that.negotiated.

do not confuse domestic y to f with intl flights.