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

Return flights

16 Dec - 15 Jan	Thai AirAsia X
03 Dec - 08 Dec	Thai AirAsia X
18 Dec - 04 Jan	Thai AirAsia X
18 Dec - 03 Jan	Thai AirAsia X
23 Dec - 04 Jan	China Eastern
02 Dec - 06 Dec	Jeju Air
06 Dec - 07 Dec	Eastar Jet
17 Dec - 21 Jan	Jeju Air
06 Dec - 10 Dec	Jeju Air
17 Dec - 16 Jan	Jeju Air
01 Dec - 10 Dec	Jeju Air
17 Dec - 17 Jan	Jeju Air
17 Dec - 14 Jan	Jeju Air
17 Dec - 15 Jan	Jeju Air
08 Dec - 12 Dec	Jeju Air
09 Dec - 06 Jan	Jeju Air
10 Dec - 16 Dec	Jeju Air
15 Dec - 18 Dec	Jeju Air
02 Dec - 04 Dec	Jeju Air
12 Dec - 15 Dec	Jeju Air

Also check the deals for one-way flights from Seoul to Delhi 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 Delhi in December from 326€

Return flights