Hello Flyertalkers,
Pretty sure this has been asked before...but I'm currently trying to book a flight out of SFO-HKG and it's costing like $1K via UA. However when I searched airfare departing SEA it's $625 with a layover in SFO...
So SFO-HKG is $1k but SEA-SFO-HKG is $625. I'm just wondering if anyone knows why

. Thanks for the help.
SFO is my main hub and trying to book a flight really to...SFO-NRT-HKG-SFO.