Largely most important carriers announced foster fare hikes such as of carry on week within response to rising fuel costsThis characters the sixth fare foster of 2011. Thats further than weve seen featuring in two years. on behalf of comparison, popular 2010, in attendance were solitary four fare hikes, semi of which were popular December.final week, American Airlines raised fares by $10 on round-trip flights appearing in the 48 bordering states. Other airlines, like US Airways, United and Continental followed suit shortly subsequently.On Monday, Southwest matched with the purpose of hike of $10.