Are there nonstop flights from Shannan (LXA) to Riyadh (RUH)?

No. The fastest connection is via Kathmandu, about 6h 12m of total flying time.

What is the fastest connection from Shannan (LXA) to Riyadh (RUH)?

via Kathmandu ≈ 6h 12m, via Guangzhou ≈ 11h 36m, via Shenzhen ≈ 11h 46m (estimated flying time, excluding layovers).

from 48,000 ANA miles (economy, one way, based on the published award charts).

Lhasa Gonggar International Airport (LXA) to King Khalid International Airport (RUH)・4,377 km

No nonstop flights. The fastest connection is via Kathmandu (KTM), about 6h 12m of flying time (layover not included).

With milesANA 48,000 miles+ (via PEK)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

5 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.