Whats the best travel site to find the cheapest airfare to asia?

You're going to have a hard time finding good fares to Vientiane, not many major airlines fly there, you might look for good fares to Bangkok or Hong Kong and then look for a flight from either city or overland from Bangkok. You're right about fares being sky high to Asia lately and the Olympics in Beijing don't help either. If you can wait until October Cathay Pacific has fares for a little over $1,000 after Oct. 1 to Bangkok, China Airlines (Taiwan) is usually the best fare to many Asian cities from SFO. You might check some of the Asian travel agencies in the Bay Area and the Sunday travel section of the Chronicle for consolidators. If you can't wait until October, $1,500 to Vientiane isn't that bad these days. Good luck.