AirHint found the following cheapest return flights from Seoul (ICN) to Delhi (DEL) in April 2026 (see full year).

Return flights

11 Apr - 18 Apr	Vietnam Airlines
23 Apr - 26 Apr	Vietnam Airlines
24 Apr - 26 Apr	Vietnam Airlines
13 Apr - 17 Apr	Vietnam Airlines
23 Apr - 25 Apr	Vietnam Airlines
15 Apr - 26 Apr	AirAsia X
23 Apr - 26 Apr	Korean Air	direct
15 Apr - 17 Apr	AirAsia X
13 Apr - 26 Apr	AirAsia X
15 Apr - 01 May	AirAsia X
13 Apr - 01 May	AirAsia X
23 Apr - 25 Apr	Asiana Airlines	direct

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

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 April from $332

Return flights