AirHint found the following cheapest return flights from Seoul (ICN) to Frankfurt (FRA) in May 2026 (see full year).

Return flights

21 May - 28 May	Air France
07 May - 21 May	Air France
07 May - 14 May	Air France
15 May - 24 May	Vietnam Airlines
27 May - 30 May	Etihad Airways
19 May - 11 Jun	Vietnam Airlines
26 May - 30 May	Etihad Airways
21 May - 04 Jun	Air France
20 May - 27 May	Emirates
19 May - 26 May	Emirates
19 May - 29 May	Emirates
18 May - 28 May	Emirates
21 May - 04 Jun	Lufthansa	direct
22 May - 01 Jun	Lufthansa
19 May - 11 Jun	Asiana Airlines	direct

Also check the deals for one-way flights from Seoul to Frankfurt 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 Seoul to Frankfurt in May from 588€

Return flights