Are there nonstop flights from Oslo (OSL) to Xiamen (XMN)?

No. The fastest connection is via Beijing, about 11h 15m of total flying time.

What is the fastest connection from Oslo (OSL) to Xiamen (XMN)?

via Beijing ≈ 11h 15m, via Amsterdam ≈ 13h 6m, via Bangkok ≈ 13h 46m (estimated flying time, excluding layovers).

from 30,000 ANA miles (economy, one way, based on the published award charts).

Oslo-Gardermoen International Airport (OSL) to Xiamen Gaoqi International Airport (XMN)・8,542 km

No nonstop flights. The fastest connection is via Beijing (PEK), about 11h 15m of flying time (layover not included).

With milesANA 30,000 miles+ (via BKK)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

6 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.