Are there nonstop flights from Seoul (GMP) to Izumo (IZO)?

No. The fastest connection is via Nagoya, about 2h 32m of total flying time.

What is the fastest connection from Seoul (GMP) to Izumo (IZO)?

via Nagoya ≈ 2h 32m (estimated flying time, excluding layovers).

Seoul Gimpo International Airport (GMP) to Izumo Enmusubi Airport (IZO)・595 km

No nonstop flights. The fastest connection is via Nagoya (NGO), about 2h 32m 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.