Cheapest return flights from Seoul to Osaka in May from $112

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

Return flights

12 May - 14 May Peach direct
27 May - 01 Jun Peach direct
25 May - 28 May Peach direct
21 May - 23 May Peach direct
29 May - 01 Jun Peach direct
27 May - 28 May Jeju Air direct
13 May - 20 May Jeju Air direct
16 May - 20 May Jeju Air direct
19 May - 22 May Jeju Air direct
17 May - 20 May Jeju Air direct
11 May - 13 May Jeju Air direct
12 May - 13 May Jeju Air direct
27 May - 02 Jun Jeju Air direct
26 May - 05 Jun Asiana Airlines direct
13 May - 17 Jun Jeju Air direct
28 May - 02 Jun Jeju Air direct
28 May - 01 Jun Asiana Airlines direct
29 May - 02 Jun Asiana Airlines direct
29 May - 05 Jun Asiana Airlines direct
31 May - 04 Jun Jeju Air

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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