Are there nonstop flights from Cagliari (CAG) to Ronchi dei Legionari/Trieste (TRS)?

Yes. Ryanair fly this route. Flight time is about 1h 28m.

What is the fastest connection from Cagliari (CAG) to Ronchi dei Legionari/Trieste (TRS)?

via Olbia ≈ 1h 58m, via Rome ≈ 2h, via Alghero ≈ 2h 2m (estimated flying time, excluding layovers).

Cagliari Elmas Airport (CAG) to Trieste Airport (TRS)・815 km

Nonstop flights available (1 airline). Flight time about 1h 28m. Nonstop return flights also operate.

14 one-stop options, sorted by estimated flying time. Tap one to see the airlines on each leg and booking links.

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