Are there nonstop flights from Seoul (GMP) to Chengdu (TFU)?

No. The fastest connection is via Beijing, about 3h 51m of total flying time.

What is the fastest connection from Seoul (GMP) to Chengdu (TFU)?

via Beijing ≈ 3h 51m, via Beijing ≈ 3h 54m, via Shanghai ≈ 3h 55m (estimated flying time, excluding layovers).

from 11,000 ANA miles, from 15,000 JAL miles (economy, one way, based on the published award charts).

Seoul Gimpo International Airport (GMP) to Chengdu Tianfu International Airport (TFU)・2,207 km

No nonstop flights. The fastest connection is via Beijing (PKX), about 3h 51m of flying time (layover not included).

With milesANA 11,000 miles+ (via PEK)JAL 15,000 miles+ (via SHA)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.