What is the cheapest month to fly from Seoul to Kumamoto?

Based on current 6-month forward fare data, September 2026 is the cheapest month to fly from Seoul (ICN) to Kumamoto (KMJ), with fares starting from $98.

What is the lowest current fare from ICN to KMJ?

The lowest currently-listed fare from Seoul (ICN) to Kumamoto (KMJ) is $98 on 2026-09-30.

How long is the flight from Seoul to Kumamoto?

Direct flights from ICN to KMJ cover approximately 652 km (405 miles), with an estimated flight time of 46m. Operating airlines: KE, TW.

Cheap flights from Seoul to Kumamoto

Cheapest current fares: $98 in September 2026, 652 km direct flight in ~46m.

Last updated August 5, 2026 · By Flightmaps Editorial

Cheapest month-by-month fares

Lowest available fare per calendar month from Seoul (ICN) to Kumamoto (KMJ). Refreshed daily.

Seoul (ICN) → Kumamoto (KMJ)

September 2026 $98
October 2026 $185

Frequently asked questions

What is the cheapest month to fly from Seoul to Kumamoto?

Based on current 6-month forward fare data, September 2026 is the cheapest month to fly from Seoul (ICN) to Kumamoto (KMJ), with fares starting from $98.
What is the lowest current fare from ICN to KMJ?

The lowest currently-listed fare from Seoul (ICN) to Kumamoto (KMJ) is $98 on 2026-09-30.
How long is the flight from Seoul to Kumamoto?

Direct flights from ICN to KMJ cover approximately 652 km (405 miles), with an estimated flight time of 46m. Operating airlines: KE, TW.

Related guides for this route

Sibling pages — full route detail, airport overviews, visa context, per-airline routes.