AirHint found the following cheapest return flights from Seoul (ICN) to Saga (HSG) in December 2025 (see full year).

Return flights

07 Dec - 10 Dec	T'way Air	direct
03 Dec - 10 Dec	T'way Air	direct
07 Dec - 08 Dec	T'way Air	direct
01 Dec - 03 Dec	T'way Air	direct
08 Dec - 10 Dec	T'way Air	direct
08 Dec - 12 Dec	T'way Air	direct
12 Dec - 15 Dec	T'way Air	direct
05 Dec - 08 Dec	T'way Air	direct
15 Dec - 17 Dec	T'way Air	direct
01 Dec - 05 Dec	T'way Air	direct
28 Dec - 02 Jan	T'way Air	direct
29 Dec - 04 Jan	T'way Air	direct

Also check the deals for one-way flights from Seoul to Saga in December.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Seoul to Saga in December from 57€

Return flights