Are there nonstop flights from Yuzhno-Sakhalinsk (UUS) to Chita (HTA)?

Yes. IrAero fly this route. Flight time is about 3h 4m.

What is the fastest connection from Yuzhno-Sakhalinsk (UUS) to Chita (HTA)?

via Blagoveschensk ≈ 3h 34m, via Khabarovsk ≈ 3h 35m, via Artyom ≈ 4h 5m (estimated flying time, excluding layovers).

from 23,000 JAL miles (economy, one way, based on the published award charts).

Yuzhno-Sakhalinsk International Airport (UUS) to Chita-Kadala International Airport (HTA)・2,185 km

Nonstop flights available (1 airline). Flight time about 3h 4m. Nonstop return flights also operate.

With milesJAL 23,000 miles+ (via IKT)Economy, one way, estimate. Tap a connection for miles by cabin.

4 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.