Are there nonstop flights from Jeju City (CJU) to New York (JFK)?

No. The fastest connection is via Seoul, about 14h 34m of total flying time.

What is the fastest connection from Jeju City (CJU) to New York (JFK)?

via Seoul ≈ 14h 34m, via Beijing ≈ 15h 16m, via Shanghai ≈ 15h 34m (estimated flying time, excluding layovers).

from 30,000 ANA miles, from 45,000 JAL miles (economy, one way, based on the published award charts).

Jeju International Airport (CJU) to John F. Kennedy International Airport (JFK)・11,512 km

No nonstop flights. The fastest connection is via Seoul (ICN), about 14h 34m of flying time (layover not included).

With milesANA 30,000 miles+ (via PEK)JAL 45,000 miles+ (via PVG)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

7 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.