Cheapest return flights from Osaka to Seoul in May from $121

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

Return flights

21 May - 28 May Jeju Air direct
20 May - 27 May Peach direct
13 May - 27 May Jeju Air direct
14 May - 27 May Jeju Air direct
21 May - 25 May Jeju Air direct
13 May - 20 May Jeju Air direct
07 May - 11 May Jeju Air direct
14 May - 18 May Jeju Air direct
14 May - 19 May Jeju Air direct
07 May - 13 May Jeju Air direct
07 May - 01 Jun Jeju Air direct
12 May - 18 Jun Jeju Air direct
30 May - 06 Jun Jeju Air direct
30 May - 04 Jun Jeju Air direct
13 May - 02 Jun Eastar Jet direct
20 May - 02 Jun Eastar Jet direct
27 May - 10 Jun Eastar Jet direct
30 May - 02 Jun Jeju Air direct
31 May - 02 Jun Jeju Air direct
20 May - 10 Jun Eastar Jet direct

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

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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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