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

Return flights

20 May - 28 May	China Southern
27 May - 04 Jun	China Southern
20 May - 04 Jun	China Southern
11 May - 28 May	China Southern
20 May - 26 May	China Southern
13 May - 19 May	China Southern
18 May - 28 May	China Southern
25 May - 04 Jun	China Southern
11 May - 09 Jun	Air China
23 May - 02 Jun	Air China
20 May - 29 May	Air China
16 May - 24 May	Air China
18 May - 29 May	Air China
11 May - 26 May	Air China
23 May - 29 May	Air China
27 May - 01 Jun	Air China
30 May - 12 Jun	Air China
20 May - 03 Jun	Air China
18 May - 14 Jun	Air China
28 May - 02 Jun	Air China

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 382€

Return flights