Are there nonstop flights from Kathmandu (KTM) to Xiamen (XMN)?

No. The fastest connection is via Kunming, about 4h 53m of total flying time.

What is the fastest connection from Kathmandu (KTM) to Xiamen (XMN)?

via Kunming ≈ 4h 53m, via Guangzhou ≈ 4h 56m, via Chongqing ≈ 4h 57m (estimated flying time, excluding layovers).

from 18,000 ANA miles, from 23,000 JAL miles (economy, one way, based on the published award charts).

Tribhuvan International Airport (KTM) to Xiamen Gaoqi International Airport (XMN)・3,281 km

No nonstop flights. The fastest connection is via Kunming (KMG), about 4h 53m of flying time (layover not included).

With milesANA 18,000 miles+ (via BKK)JAL 23,000 miles+ (via KMG)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

13 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.