NB: This is a guest article by Michael Cameron, co-founder of Rome2rio.
The growth of big data and availability of APIs is providing exciting new opportunities for making sense of travel data, even for a fledgling start-up like Rome2rio.
Airfares fluctuate wildly, but do follow certain obvious trends; longer flights cost more, and some airlines are more expensive per mile flown than others.
Read full story at: http://www.tnooz.com/2012/12/14/news/data-crunching-to-find-the-cheapest-airline-in-the-world/