actually, the 3rd JFK-LHR flight was sent to IAD.
In terms of thinking that "pacific" flights are high yield, yer totally wrong. Fares to Singapore in coach have been hovering between $500 to $600 USD... many people fly United to singapore JUST for the miles.. there's an entire thread with about 100 replies on it over at FlyerTalk.
United puts their 747s where they see fit, and MAYBE on a given day, 2 are flying strictly domestic routes.. but not too many. But my friends at ORD said the 3pm flight to LAX, which is a 744, goes out *full* all the time... although that doesn't mean it's making money, that's almost 400 connecting passengers for United.. better than 180 in a 757.
~ ~ ~ ~ pRoFeSsIoNaL hUrRiCaNe DoDgEr ~ ~ ~ ~