AirHint found the following cheapest return flights from Seoul (ICN) to Prague (PRG) in September 2025 (see full year).

Return flights

15 Sep - 23 Sep	Lufthansa
04 Sep - 15 Sep	Lufthansa
04 Sep - 17 Sep	Lufthansa
04 Sep - 09 Sep	Lufthansa
04 Sep - 11 Sep	Lufthansa
04 Sep - 01 Oct	Lufthansa
15 Sep - 24 Sep	Lufthansa
15 Sep - 22 Sep	Lufthansa
14 Sep - 21 Sep	Lufthansa
03 Sep - 08 Sep	Lufthansa
18 Sep - 21 Sep	Etihad Airways
16 Sep - 01 Oct	Lufthansa
11 Sep - 30 Oct	Emirates
18 Sep - 22 Oct	LOT
01 Sep - 03 Oct	Emirates
26 Sep - 02 Oct	Qatar Airways
23 Sep - 21 Oct	Emirates
24 Sep - 05 Oct	Emirates
26 Sep - 03 Oct	Qatar Airways
30 Sep - 01 Oct	Etihad Airways

Also check the deals for one-way flights from Seoul to Prague in September.

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 Prague in September from $607

Return flights