I just booked a holiday in Turkey which goes from Stansted. Ryanair fly directly Cork to Stansted but there was so much mess on trying to book, that I booked Aerlingus to Heathrow, I will get the connection bus to Stansted. Ryanair only allow 15kg baggage allowance, the holiday company allow 20kg, there was no way to book for more than 15kg, so I will end up paying in the airport, according to Ryanair website it is €20 per kilo excess(can only be purchased at Ticket Desk) which is €100 per person one way for 20kg, (have I got this correct?) they even wanted €1 euro to send a confirmation email. No more Ryanair for me.
Aerlingus allow 20kg with €9 per kg over.