Originally Posted by Awal
I am not an expert here but it was my understanding that the legacy carriers fronted the money for the reservations systems and they don't support the LCC's because they are eating their lunch.
No, that's not how it is. Airlines have to pay to be "in the system", and most LCCs have chosen not to pay. Ryanair used to be in the system but came out about five years ago (my first-ever Ryanair flight was booked by travel agent)