Well, some of their seats are sold at bus-like fares some of the time. A lot of the time you pay the same as you do with other airlines, for a much inferior service. I sometimes fly Ryanair if they are the only airline that goes to where I need to go. I've had the odd flight for GBP 30 return, but I've also paid as much as GBP 200 return. I'm flying with them next week for slightly over GBP 100 return, some flights on the same days were going for GBP 130 one way plus tax.