To echo what others are saying... when I was trying to book award travel from the U.S. to Europe for August, the agent I spoke with said (perhaps with a bit of exaggeration, but still...) that they were seeing U.S.-Europe traffic *double* what they saw the summer before.

Some of that's likely due to the weakened Euro, I'd guess. And a slightly improved U.S. economy. Beyond that, though, not sure what's up.