Are there nonstop flights from Sukagawa (FKS) to Seoul (ICN)?

No. The fastest connection is via Sapporo, about 3h 24m of total flying time.

What is the fastest connection from Sukagawa (FKS) to Seoul (ICN)?

via Sapporo ≈ 3h 24m (estimated flying time, excluding layovers).

Fukushima Airport (FKS) to Incheon International Airport (ICN)・1,235 km

No nonstop flights. The fastest connection is via Sapporo (CTS), about 3h 24m of flying time (layover not included).

None.

1 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.