Are there nonstop flights from Sibu (SBW) to Surabaya (SUB)?

No. The fastest connection is via Singapore, about 3h 40m of total flying time.

What is the fastest connection from Sibu (SBW) to Surabaya (SUB)?

via Singapore ≈ 3h 40m, via Johor Bahru ≈ 3h 46m (estimated flying time, excluding layovers).

Sibu Airport (SBW) to Juanda International Airport (SUB)・1,076 km

No nonstop flights. The fastest connection is via Singapore (SIN), about 3h 40m 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.