Are there nonstop flights from Bologna (BLQ) to Castellón de la Plana (CDT)?

Yes. Ryanair fly this route. Flight time is about 1h 43m.

What is the fastest connection from Bologna (BLQ) to Castellón de la Plana (CDT)?

via Palma de Mallorca ≈ 2h 20m, via Rome ≈ 2h 35m, via Madrid ≈ 2h 53m (estimated flying time, excluding layovers).

from 12,000 JAL miles (economy, one way, based on the published award charts).

Bologna Guglielmo Marconi Airport (BLQ) to Castellón-Costa Azahar Airport (CDT)・1,038 km

Nonstop flights available (1 airline). Flight time about 1h 43m. Nonstop return flights also operate.

With milesJAL 12,000 miles+ (via MAD)Economy, one way, estimate. Tap a connection for miles by cabin.

7 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.