Lowest fares are out of SEA ..A few $$ more from SFO,LAX,Others
Sample date for SEA-MNL dep. Mar 29 - Apr.2 $682 a.i.
Seeing fares available Feb,March,April
Bookable on Vayama and a few other sites.
The negotiater will bring up routes via Guam for a few $ more
There is some room for improvement