Are there nonstop flights from Ulaanbaatar (UBN) to Riyadh (RUH)?

No. The fastest connection is via New Delhi, about 8h 28m of total flying time.

What is the fastest connection from Ulaanbaatar (UBN) to Riyadh (RUH)?

via New Delhi ≈ 8h 28m, via Beijing ≈ 10h 7m, via Beijing ≈ 10h 9m (estimated flying time, excluding layovers).

from 36,000 ANA miles (economy, one way, based on the published award charts).

Ulaanbaatar Chinggis Khaan International Airport (UBN) to King Khalid International Airport (RUH)・5,779 km

No nonstop flights. The fastest connection is via New Delhi (DEL), about 8h 28m of flying time (layover not included).

With milesANA 36,000 miles+ (via PEK)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

10 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.