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

Return flights

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

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 497€

Return flights