CAA stats out today and provide passenger numbers for the first calendar month (April) of Ryanair's new routes.
Naples: 2266 passengers, average load 141.6, load factor 74.9%
Malta*: 2607 passengers, average load 144.8, load factor 76.6%
* There was an additional rotation (two sectors) for Malta compared with Naples because of the days of the week the flights are operated.
I was unable to ascertain Ryanair's Malaga passenger figures because Flybe also operated the route in April this year. Overall, the Malaga route handled 5830 scheduled passengers compared with 3936 in April 2018 when Flybe operated the route alone.
With Naples and Malta it's likely that the first inbounds were not well patronised so that has to be taken into account when looking at the loads, but of course the yields are what count in the end. Having said that, Ryanair tends to expect high loads on holiday routes in summer so it will probably be looking for at least around the 90% level in the main holiday months.
Load-wise, I think it's a decent start and a good foundation for the routes to grow.