The distressing economic news this summer made September important in signaling how the US airline industry is performance. Judging from the early operational reports and 3Q2011 guidance issued, traffic and demand are defying the gloom offered by Wall Street and Washington. Indeed, air travel demand is expected to remain strong, which bodes well for the industry's bottom line given the fact capacity continues to tighten.

Still, US airlines are not sanguine about the state of the industry, with most not only pulling capacity in the fourth quarter but signaling the same for 2012 when a number of carriers will be taking delivery of new aircraft but keeping capacity flat. That capacity discipline, in evidence since early Spring when fuel continued its climb, meant the USD6-10 fare hike imposed in mid-September stuck and will likely segue into future hikes as demand remains strong on increasingly tight capacity. For now the hike applies to last minute tickets.