Are there nonstop flights from Dushanbe (DYU) to Kathmandu (KTM)?

No. The fastest connection is via New Delhi, about 3h 33m of total flying time.

What is the fastest connection from Dushanbe (DYU) to Kathmandu (KTM)?

via New Delhi ≈ 3h 33m (estimated flying time, excluding layovers).

Dushanbe International Airport (DYU) to Tribhuvan International Airport (KTM)・1,951 km

No nonstop flights. The fastest connection is via New Delhi (DEL), about 3h 33m of flying time (layover not included).

None.

1 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.