Check out these TRAVEL AGGREGATOR sites the next time you are online looking for travel tickets:

QIXO searches more than 28 popular airfare sites and finds you the best prices and flight times.
Mobissimo performs real-time queries of the multiple websites that travelers traditionally check manually (plus dozens of others that are often overlooked).
KAYAK objectively and comprehensively navigates travel information online by searching for travel deals from over 100 online travel sites.