Are there nonstop flights from Hangzhou (HGH) to Surabaya (SUB)?

No. The fastest connection is via Bandar Seri Begawan, about 6h 1m of total flying time.

What is the fastest connection from Hangzhou (HGH) to Surabaya (SUB)?

via Bandar Seri Begawan ≈ 6h 1m, via Hong Kong ≈ 6h 10m, via Shenzhen ≈ 6h 12m (estimated flying time, excluding layovers).

from 18,000 ANA miles, from 23,000 JAL miles (economy, one way, based on the published award charts).

Hangzhou Xiaoshan International Airport (HGH) to Juanda International Airport (SUB)・4,262 km

No nonstop flights. The fastest connection is via Bandar Seri Begawan (BWN), about 6h 1m of flying time (layover not included).

With milesANA 18,000 miles+ (via SIN)JAL 23,000 miles+ (via HKG)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

9 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.