Cheapest return flights from Seoul to Osaka in May from $119

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

Return flights

25 May - 28 May Peach direct
11 May - 14 May Peach direct
14 May - 21 May Jeju Air direct
07 May - 13 May Jeju Air direct
14 May - 28 May Jeju Air direct
26 May - 28 May Jeju Air direct
07 May - 14 May Jeju Air direct
19 May - 20 May Jeju Air direct
12 May - 14 May Jeju Air direct
12 May - 20 May Jeju Air direct
13 May - 03 Jun Peach direct
28 May - 01 Jun Jeju Air direct
26 May - 02 Jun Jeju Air direct
28 May - 02 Jun Jeju Air direct
30 May - 04 Jun Jeju Air direct
31 May - 04 Jun Jeju Air direct
29 May - 02 Jun Jeju Air direct
29 May - 01 Jun Jeju Air direct
30 May - 02 Jun Jeju Air direct
30 May - 01 Jun Jeju Air direct

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