Originally Posted by
Bluedriver
Maybe never, or maybe after there is an SQ FLL. They could build a trip something along the lines of your example from both bases. Or maybe never.
I could see this happening. Having FLL SQ but still build a line like Flyby mentioned. If the pairings break then FLL covers it and vice versa when a FLL SQ pairing (FLL JFK LHR FLL)breaks in BOS/JFK.