Are there nonstop flights from Guangzhou (CAN) to Xiamen (XMN)?

Yes. China Southern Airlines, Xiamen Airlines fly this route. Flight time is about 1h 6m.

What is the fastest connection from Guangzhou (CAN) to Xiamen (XMN)?

via Hong Kong ≈ 1h 45m, via Fuzhou ≈ 2h 5m, via Wuyishan ≈ 2h 12m (estimated flying time, excluding layovers).

from 12,000 JAL miles (economy, one way, based on the published award charts).

Guangzhou Baiyun International Airport (CAN) to Xiamen Gaoqi International Airport (XMN)・507 km

Nonstop flights available (2 airlines). Flight time about 1h 6m. Nonstop return flights also operate.

With milesJAL 12,000 miles+ (via HKG)Economy, one way, estimate. Tap a connection for miles by cabin.

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.