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

Return flights

13 Oct - 24 Nov	Vietnam Airlines
21 Oct - 28 Oct	Vietnam Airlines
09 Oct - 27 Oct	Jin Air
23 Oct - 30 Oct	T'way Air
15 Oct - 20 Nov	HK Express
13 Oct - 31 Oct	VietJet Air
14 Oct - 26 Oct	HK Express
15 Oct - 26 Oct	HK Express
29 Oct - 01 Nov	Thai VietJet Air
13 Oct - 15 Oct	AirAsia X
20 Oct - 27 Oct	AirAsia X
13 Oct - 19 Oct	AirAsia X
13 Oct - 16 Oct	HK Express
14 Oct - 14 Nov	Thai VietJet Air
21 Oct - 10 Nov	Thai VietJet Air
20 Oct - 09 Nov	Thai VietJet Air
29 Oct - 16 Nov	AirAsia X
13 Oct - 02 Nov	AirAsia X
19 Oct - 02 Nov	AirAsia X
19 Oct - 03 Nov	AirAsia X

Also check the deals for one-way flights from Seoul to Delhi in October.

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 October from 294€

Return flights