I struggle with the notion that a high quality airline operating system cannot be developed using technologies as of 2015. Most of what we are drowning in right now is the product of the last 10 years.
The last place we need fancy new shit is in air travel. This is precisely the kind of thing where you do want to call someone like IBM to install a mainframe. Failure of an airline's IT systems can begin to approach the kind of impact you get with a payment network outage.