Are there nonstop flights from Rome (FCO) to Subang (SZB)?

No. The fastest connection is via Singapore, about 13h 14m of total flying time.

What is the fastest connection from Rome (FCO) to Subang (SZB)?

via Singapore ≈ 13h 14m, via Hong Kong ≈ 14h 53m (estimated flying time, excluding layovers).

Rome–Fiumicino Leonardo da Vinci International Airport (FCO) to Sultan Abdul Aziz Shah International Airport (SZB)・9,717 km

No nonstop flights. The fastest connection is via Singapore (SIN), about 13h 14m of flying time (layover not included).

None.

2 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.