Priceline.com's Airfare Index for the Week of December 22, 2008, Tracking Weekly Changes in Domestic Airfares

Priceline.com's (Nasdaq: PCLN) Airfare Index is a tracking barometer that looks for the largest week-to-week swings in average published-price roundtrip airfares for select markets. Each dollar amount shown is the average of the lowest fares returned through multiple airfare searches for flights that are at least 7 days away from departure. The percentage change compares fare averages for the current week with those from the previous week. Amounts shown include all taxes and airline fees. Airfare pricing is subject to change and there is no guarantee that any airfare will be available at the amounts shown.