benyaoguai

i've been doing research too ~ not to your destination particularly~
but i've found that if you go to seattle to fly~ will probably save you couple hundred dollars
for myself~ i'm still doing the planning~ and i've found that even if i go a day before ~ stay in seattle for one night~ transit and everything~ i still save about 200 bucks flying from  seattle~ but maybe cuz my trip is long =.= and expensive~
still~ it's up to you to weight out the costs

couple sites i know

cheapticket.com  or .ca ~ they are lil bit different of course
flightnetwork.com
tripadvisor.ca

don't forget local travel / flight agencies that might specialize in those areas~
what i mean is~ if you're going to asia~ of course go to a chinese travel agent~
but if you're going to europe~ or india ~ or middle ease~ africa kinda places
you might want to explore other agencies~


good luck