AirHint found the following cheapest return flights from Seoul (GMP) to Kaohsiung (KHH) in April 2026 (see full year).

Return flights

01 Apr - 06 Apr	T'way Air	direct
22 Apr - 26 Apr	T'way Air	direct
19 Apr - 22 Apr	T'way Air	direct
15 Apr - 20 Apr	T'way Air	direct
17 Apr - 20 Apr	T'way Air	direct
10 Apr - 13 Apr	T'way Air	direct
09 Apr - 13 Apr	ANA
30 Apr - 07 May	ANA
29 Apr - 03 May	ANA
08 Apr - 15 Apr	ANA
25 Apr - 28 Apr	ANA
02 Apr - 09 Apr	ANA

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

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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Cheapest return flights from Seoul to Kaohsiung in April from $518

Return flights