Are there nonstop flights from Kabul (KBL) to Seoul (ICN)?

No. The fastest connection is via Ürümqi, about 7h 8m of total flying time.

What is the fastest connection from Kabul (KBL) to Seoul (ICN)?

via Ürümqi ≈ 7h 8m, via Tashkent ≈ 7h 35m, via New Delhi ≈ 7h 40m (estimated flying time, excluding layovers).

Kabul International Airport (KBL) to Incheon International Airport (ICN)・5,078 km

No nonstop flights. The fastest connection is via Ürümqi (URC), about 7h 8m of flying time (layover not included).

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.