Are there nonstop flights from Kuala Lumpur (KUL) to Ulaanbaatar (UBN)?

No. The fastest connection is via Ho Chi Minh City, about 7h 3m of total flying time.

What is the fastest connection from Kuala Lumpur (KUL) to Ulaanbaatar (UBN)?

via Ho Chi Minh City ≈ 7h 3m, via Phuket ≈ 7h 5m, via Sanya ≈ 7h 7m (estimated flying time, excluding layovers).

from 15,000 ANA miles, from 37,000 JAL miles (economy, one way, based on the published award charts).

Kuala Lumpur International Airport (KUL) to Ulaanbaatar Chinggis Khaan International Airport (UBN)・5,017 km

No nonstop flights. The fastest connection is via Ho Chi Minh City (SGN), about 7h 3m of flying time (layover not included).

With milesANA 15,000 miles+ (via PEK)JAL 37,000 miles+ (via ICN)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

18 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.