AirHint found the following cheapest return flights from Seoul (ICN) to Frankfurt (FRA) in August 2025 (see full year).

Return flights

11 Aug - 25 Sep	Lufthansa	direct
11 Aug - 12 Sep	Lufthansa	direct
13 Aug - 20 Aug	Lufthansa
13 Aug - 19 Aug	Lufthansa
12 Aug - 19 Aug	Lufthansa
13 Aug - 05 Sep	Lufthansa
11 Aug - 22 Aug	Lufthansa
11 Aug - 17 Aug	Lufthansa
13 Aug - 01 Sep	Lufthansa
13 Aug - 03 Sep	Lufthansa
13 Aug - 04 Sep	Lufthansa
13 Aug - 08 Sep	Lufthansa
11 Aug - 21 Aug	SWISS
10 Aug - 23 Aug	Lufthansa
18 Aug - 28 Aug	Etihad Airways
13 Aug - 07 Sep	Lufthansa
18 Aug - 04 Sep	Etihad Airways
10 Aug - 20 Aug	Lufthansa
12 Aug - 30 Sep	Lufthansa
10 Aug - 17 Aug	Lufthansa

Also check the deals for one-way flights from Seoul to Frankfurt in August.

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.

Book a cheap hotel in Frankfurt

Cheap car rent in Frankfurt

Cheapest return flights from Seoul to Frankfurt in August from $627

Return flights