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

Return flights

11 May - 17 May	China Airlines	direct
21 May - 28 May	China Airlines	direct
07 May - 25 Jun	China Airlines	direct
20 May - 10 Jun	EVA Air	direct
29 May - 30 May	EVA Air	direct
12 May - 20 May	EVA Air	direct
29 May - 02 Jun	EVA Air	direct
22 May - 26 May	EVA Air	direct
25 May - 29 May	China Airlines	direct
16 May - 20 May	EVA Air	direct
01 May - 15 May	EVA Air	direct
16 May - 18 May	ANA
20 May - 24 May	ANA

Also check the deals for one-way flights from Taipei to Seoul in May.

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 Taipei to Seoul in May from 336€

Return flights