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

Return flights

25 Apr - 09 May	Malaysia Airlines
13 Apr - 27 Apr	Jetstar
13 Apr - 04 May	Jetstar
01 Apr - 27 Apr	Jetstar
24 Apr - 15 May	Jetstar
18 Apr - 02 May	Jetstar
10 Apr - 26 Apr	Jetstar
02 Apr - 09 Apr	Jetstar
02 Apr - 10 Apr	Jetstar
04 Apr - 11 Apr	Malaysia Airlines
05 Apr - 17 Apr	Singapore Airlines
03 Apr - 11 Apr	Singapore Airlines

Also check the deals for one-way flights from Adelaide to Seoul 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.

Book a cheap hotel in Seoul

Cheap car rent in Seoul

Cheapest return flights from Adelaide to Seoul in April from $598

Return flights