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

Return flights

23 May - 30 May	Air China
23 May - 07 Jun	Air China
30 May - 06 Jun	Air China
28 May - 11 Jun	Air China
27 May - 30 May	Air China
27 May - 17 Jun	Air China
24 May - 29 May	Air China
29 May - 05 Jun	Air China
25 May - 01 Jun	Air China
26 May - 30 May	Air China
28 May - 20 Jun	Air China
11 May - 20 May	Air China
16 May - 24 May	Air China
23 May - 02 Jun	Air China
13 May - 22 May	Air China
18 May - 25 May	Air China
11 May - 19 May	Air China
01 May - 09 May	Air China
11 May - 01 Jun	Air China
26 May - 26 Jun	Japan Airlines

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 513€

Return flights