07/25/2010 05:12 am ET Updated May 25, 2011

Want To Beat Those Summer Airfare Hikes? Try Booking On Tuesday

The bad news about summer air fares keeps stacking up like aircraft waiting to land at San Francisco International Airport on a foggy day.

First, airlines hiked fares in response to escalating oil prices. Then they stopped discounting seats as the economy improved and travelers started returning to the skies. Now, carriers are quietly adding surcharges to tickets on peak travel days this summer.