Are there nonstop flights from Ulaanbaatar (UBN) to Irkutsk (IKT)?

Yes. IrAero fly this route. Flight time is about 1h 8m.

Ulaanbaatar → Irkutsk

Ulaanbaatar Chinggis Khaan International Airport (UBN) to Irkutsk International Airport (IKT)・542 km

Nonstop flights available (1 airline). Flight time about 1h 8m. Nonstop return flights also operate.

NEWStarting soon: S7 Airlines

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