Are there nonstop flights from Dushanbe (DYU) to Kulob (TJU)?

Yes. Tajik Air fly this route. Flight time is about 37m.

Dushanbe → Kulob

Dushanbe International Airport (DYU) to Kulob International Airport (TJU)・106 km

Nonstop flights available (1 airline). Flight time about 37m. Nonstop return flights also operate.

Times are estimated from distance. Check schedules, frequency and availability with the airline or a booking site.