Are there nonstop flights from Amman (AMM) to Castellón de la Plana (CDT)?

No. The fastest connection is via Rome, about 5h 1m of total flying time.

What is the fastest connection from Amman (AMM) to Castellón de la Plana (CDT)?

via Rome ≈ 5h 1m, via Bologna ≈ 5h 15m, via Bergamo ≈ 5h 23m (estimated flying time, excluding layovers).

from 25,000 JAL miles (economy, one way, based on the published award charts).

Queen Alia International Airport (AMM) to Castellón-Costa Azahar Airport (CDT)・3,342 km

No nonstop flights. The fastest connection is via Rome (FCO), about 5h 1m of flying time (layover not included).

With milesJAL 25,000 miles+ (via MAD)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

11 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.