AirHint found the following cheapest one-way flights from Delhi (DEL) to Seoul (ICN) in May 2026 (see full year).

One-Way flights

13 May	Vietnam Airlines
24 May	Vietnam Airlines
03 May	Vietnam Airlines
15 May	Vietnam Airlines
21 May	Vietnam Airlines
14 May	Vietnam Airlines
22 May	Thai AirAsia X
17 May	Thai AirAsia X
08 May	Thai AirAsia X
24 May	Air India	direct

Also check the deals for return flights from Delhi to Seoul in May.

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 one-way flights from Delhi to Seoul in May from 141€

One-Way flights