Cheapest return flights from Osaka to Seoul in May from $235

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

Return flights

12 May - 15 May Korean Air direct
11 May - 15 May Korean Air direct
13 May - 18 May Korean Air direct
19 May - 20 May Korean Air direct
11 May - 13 May Korean Air direct
13 May - 17 May Korean Air direct
19 May - 21 May Korean Air direct
20 May - 24 May Korean Air direct
11 May - 14 May Korean Air direct
21 May - 26 May Korean Air direct
31 May - 02 Jun Korean Air direct
29 May - 01 Jun Korean Air direct
25 May - 01 Jun Air China
30 May - 06 Jun Asiana Airlines direct
25 May - 01 Jun Korean Air 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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