AirHint found the following cheapest return flights from Osaka (ITM) to Seoul (ICN) in January 2026 (see full year).

Return flights

15 Jan - 17 Jan	ANA
19 Jan - 22 Jan	ANA
02 Jan - 05 Jan	Japan Airlines
02 Jan - 04 Jan	Japan Airlines
06 Jan - 09 Jan	ANA
07 Jan - 14 Jan	ANA
23 Jan - 24 Jan	ANA
23 Jan - 25 Jan	ANA
12 Jan - 15 Jan	ANA
16 Jan - 17 Jan	ANA
29 Jan - 06 Feb	ANA
27 Jan - 03 Feb	ANA

Also check the deals for one-way flights from Osaka to Seoul in January.

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 Osaka to Seoul in January from $329

Return flights