As far as alliteration goes, dashing deals is not bad. People may remember it.
But while I understand flash sales for my local spa, or a restaurant that I haven't tried, or even buying a coupon for the chiropractor on the off chance that I hurt my back, I just don't get travel flash sales.
I just can't imagine that having less than 2 hours to make a decision would actually spur me to take a trip to Costa Rica. Sorry Travelocity.
One size fits all on this kind of thing just doesn't work for me. Ask me the places I'd like to go and offer me a getaway deal to one of those places? Maybe