Are there nonstop flights from Mashhad (MHD) to Birjand (XBJ)?

Yes. Iran Air fly this route. Flight time is about 56m.

Mashhad → Birjand

Mashhad International Airport (MHD) to Birjand International Airport (XBJ)・373 km

Nonstop flights available (1 airline). Flight time about 56m. Nonstop return flights also operate.

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