Are there nonstop flights from Seoul (ICN) to Ōzora (MMB)?

No. The fastest connection is via Sapporo, about 2h 57m of total flying time.

What is the fastest connection from Seoul (ICN) to Ōzora (MMB)?

via Sapporo ≈ 2h 57m, via Nagoya ≈ 3h 33m, via Osaka ≈ 3h 33m (estimated flying time, excluding layovers).

Incheon International Airport (ICN) to Memanbetsu Airport (MMB)・1,651 km

No nonstop flights. The fastest connection is via Sapporo (CTS), about 2h 57m of flying time (layover not included).

None.

4 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.