Tickets purchased for infants under the age of 2 years are charged 15% of the adult fare (excl. VAT and airport taxes) per trip. You get to take 1 checked bag weighing up to 20kg plus a collapsible pushchair and a child seat for free.
No kiddies discount. Kids have to travel with at least one adult aged 16 years or older and at least 1 adult for every 5 kiddies under 12 years travelling together.