For "regional" airlines such as SouthWest or Ryanair, managing your own system is fine. But if you want to be able to do code-sharing, ground-handling and all t

For "regional" airlines such as SouthWest or Ryanair, managing your own system is fine. But if you want to be able to do code-sharing, ground-handling and all the rest of the madness that comes with being a global airline, you don't have a choice. The single website solution also means you're cutting yourself off from people who are using fare search services. And let's not forget that in some regions (Asia notably), travel agents with their "cryptic" terminals and "valuable" tickets are still the norm.