Are there nonstop flights from Hong Kong (HKG) to Guwahati (GAU)?

No. The fastest connection is via Paro, about 4h 17m of total flying time.

What is the fastest connection from Hong Kong (HKG) to Guwahati (GAU)?

via Paro ≈ 4h 17m, via Bangkok ≈ 4h 55m, via Bangkok ≈ 4h 58m (estimated flying time, excluding layovers).

Hong Kong International Airport (HKG) to Lokpriya Gopinath Bordoloi International Airport (GAU)・2,301 km

No nonstop flights. The fastest connection is via Paro (PBH), about 4h 17m of flying time (layover not included).

None.

3 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.