The Economist has a survey article on airline travel – not much new, and it goes into details less than what I would expect from such an august publication, but still a useful and updated overview of an interesting industry. Also an interview with Paul Markillie, the author of the article, who offers this quote:

In the airline industry, change is happening, but it’s very slow. The result is you have an industry that brought the world globalisation, but has been unable itself to globalise.