Originally Posted by
Anglo Large Clawed Otter
35% is nothing. You should see the Percentage change on some domestic routes over the past few weeks. Some as much as 300%, or more

Sure have. FLL-SEA, which used to be around 250-350 r/t is now well north of 600 or more with only B class or higher showing availability. Surveying Orbitz indicates the other carriers have done the same.
It doesn't appear the fares have been hiked, but rather the lower fare buckets have been emptied out.