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

Return flights

03 Dec - 08 Dec	Jetstar
01 Dec - 08 Dec	Jetstar
05 Dec - 12 Dec	Jetstar
01 Dec - 11 Dec	Jetstar
02 Dec - 30 Dec	Jetstar
11 Dec - 15 Dec	China Southern
10 Dec - 29 Dec	Jetstar
09 Dec - 29 Dec	Jetstar
22 Dec - 02 Jan	China Southern
16 Dec - 02 Jan	China Southern
01 Dec - 14 Jan	Jetstar
01 Dec - 13 Jan	Indonesia AirAsia
31 Dec - 30 Jan	Jetstar
01 Dec - 12 Jan	Jetstar
22 Dec - 30 Jan	China Southern
17 Dec - 01 Jan	Jetstar
12 Dec - 10 Jan	Jetstar
24 Dec - 08 Jan	Jetstar
23 Dec - 28 Dec	Jetstar
21 Dec - 28 Dec	Jetstar

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

Book a cheap hotel in Seoul

Cheap car rent in Seoul

Cheapest return flights from Adelaide to Seoul in December from $711

Return flights