Cheapest return flights from Osaka to Seoul in April from $135

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

Return flights

16 Apr - 21 Apr Jeju Air direct
23 Apr - 28 Apr Jeju Air direct
16 Apr - 22 Apr Jeju Air direct
16 Apr - 20 Apr Jeju Air direct
08 Apr - 14 Apr Jeju Air direct
15 Apr - 21 Apr Jeju Air direct
23 Apr - 29 Apr Jeju Air direct
16 Apr - 19 Apr Jeju Air direct
22 Apr - 12 May Jeju Air direct
22 Apr - 26 Apr Jeju Air direct
09 Apr - 12 Apr Jeju Air direct
28 Apr - 07 May Jeju Air direct
23 Apr - 10 May Jeju Air direct
28 Apr - 10 May Jin Air direct
13 Apr - 08 May Aero K Airlines direct
28 Apr - 09 May Jeju Air direct
28 Apr - 05 May Jeju Air direct
28 Apr - 13 May Eastar Jet direct
22 Apr - 13 May Eastar Jet direct
23 Apr - 13 May Eastar Jet direct

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

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