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

Return flights

06 Dec - 13 Dec	Vietnam Airlines
14 Dec - 21 Dec	VietJet Air
03 Dec - 17 Dec	VietJet Air
05 Dec - 19 Dec	VietJet Air
01 Dec - 05 Dec	VietJet Air
05 Dec - 13 Dec	VietJet Air
02 Dec - 16 Dec	VietJet Air
01 Dec - 15 Dec	VietJet Air
04 Dec - 18 Dec	VietJet Air
15 Dec - 18 Dec	VietJet Air
30 Dec - 06 Jan	VietJet Air
27 Dec - 16 Jan	VietJet Air
18 Dec - 04 Jan	VietJet Air
30 Dec - 02 Jan	VietJet Air
31 Dec - 10 Jan	VietJet Air
28 Dec - 16 Jan	VietJet Air
13 Dec - 02 Jan	AirAsia X
14 Dec - 02 Jan	AirAsia X
27 Dec - 16 Jan	Air India	direct
28 Dec - 16 Jan	Air India	direct

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 $362

Return flights