Are there nonstop flights from Valletta (MLA) to Catania (CTA)?

Yes. Ryanair, KM Malta Airlines fly this route. Flight time is about 43m.

Valletta → Catania

Malta International Airport (MLA) to Catania-Fontanarossa Airport (CTA)・187 km

Nonstop flights available (2 airlines). Flight time about 43m. Nonstop return flights also operate.

Times are estimated from distance. Check schedules, frequency and availability with the airline or a booking site.