Are there nonstop flights from Newark (EWR) to Xiamen (XMN)?

No. The fastest connection is via Seoul, about 15h 58m of total flying time.

What is the fastest connection from Newark (EWR) to Xiamen (XMN)?

via Seoul ≈ 15h 58m, via Tokyo ≈ 16h 37m, via Vancouver ≈ 17h 8m (estimated flying time, excluding layovers).

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

Newark Liberty International Airport (EWR) to Xiamen Gaoqi International Airport (XMN)・12,651 km

No nonstop flights. The fastest connection is via Seoul (ICN), about 15h 58m of flying time (layover not included).

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

None.

8 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.