Are there nonstop flights from Kathmandu (KTM) to Subang (SZB)?

No. The fastest connection is via Bangkok, about 5h of total flying time.

What is the fastest connection from Kathmandu (KTM) to Subang (SZB)?

via Bangkok ≈ 5h, via Singapore ≈ 5h 34m, via Hong Kong ≈ 7h 25m (estimated flying time, excluding layovers).

Tribhuvan International Airport (KTM) to Sultan Abdul Aziz Shah International Airport (SZB)・3,227 km

No nonstop flights. The fastest connection is via Bangkok (DMK), about 5h 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.