Wirelessly posted (iPhone 3G: Mozilla/5.0 (iPhone; CPU iPhone OS 5_1_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9B206 Safari/7534.48.3)
The few articles I read pointed at the hotel sector, rather than airlines, as the key culprit in excessive price gouging. This is not unique to the London Olympics, almost ever major sporting event I've been to the accomodation price increase over "normal" far outweighs the uplift in the price of getting there.