On Sun, 1 Aug 2010 19:31:43 -0700, "W"
wrote:

Is there a web site that will search for the cheapest international flights
from US to South America that are conditioned by arrival/destination points
and NOT specifying exact departure or return dates? Expedia will only work
with a date range for US domestic flights.

http://travelocity.com can search for dates plus/minus one to
three days or for totally flexible dates. The totally flexible
option can be frustrating since many of the indicated available
dates will show up as sold out once you click on them so you need
to cross yor fingers and then stick to it.

--
************* DAVE HATUNEN ) *************
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