Are there nonstop flights from Busan (PUS) to Chengdu (TFU)?

Yes. Air Busan fly this route. Flight time is about 3h 16m.

What is the fastest connection from Busan (PUS) to Chengdu (TFU)?

via Nanjing ≈ 3h 49m, via Qingdao ≈ 3h 50m, via Xi'an ≈ 3h 53m (estimated flying time, excluding layovers).

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

Gimhae International Airport (PUS) to Chengdu Tianfu International Airport (TFU)・2,348 km

Nonstop flights available (1 airline). Flight time about 3h 16m. Nonstop return flights also operate.

With milesANA 11,000 miles+ (via PEK)JAL 15,000 miles+ (via PVG)Economy, one way, estimate. Tap a connection for miles by cabin.

21 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.