Are there nonstop flights from Amakusa (AXJ) to Seoul (ICN)?

No. The fastest connection is via Fukuoka, about 1h 49m of total flying time.

What is the fastest connection from Amakusa (AXJ) to Seoul (ICN)?

via Fukuoka ≈ 1h 49m, via Kumamoto ≈ 1h 51m (estimated flying time, excluding layovers).

Amakusa Airport (AXJ) to Incheon International Airport (ICN)・649 km

No nonstop flights. The fastest connection is via Fukuoka (FUK), about 1h 49m of flying time (layover not included).

None.

2 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.