回複：想從美國東岸去澳洲，哪能買到便宜的機票?

Try:
www.orbitz.com
Make sure to check the "Search one day before and after" in the optional column.

Just for the fun (it works only in a few occassions), before you make the final purchase, go to
www.priceline.com
To bid the same arrangement tickets with about $200 less. However, note that anything bought from priceline.com will be hard to cancle.

If you are lucky, you may get your ticket in the price range of $1500.00/pp.