perhaps this will help?
Hawaiian Airlines email from 4/13/2010:
"Aloha ,
On April 14th, Hawaiian Airlines celebrates two wonderful years of service to Manila. We're thrilled to have introduced travelers to this historical city, reunited families and inspired exploration of the stunning Philippine Islands.
In celebration of these two years we are offering a special limited time airfare of only $438* each way. If you have ever considered travel to the Philippines, now is your best time to book.
Hurry! Limited Time Offer!
Book: April 13 - 23, 2010
Travel to Manila: August 13 - November 21, 2010"