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

Return flights

10 Sep - 16 Sep	Emirates
10 Sep - 25 Sep	Emirates
22 Sep - 30 Sep	Emirates
15 Sep - 23 Sep	Emirates
15 Sep - 30 Sep	Emirates
15 Sep - 25 Sep	Emirates
17 Sep - 02 Oct	Emirates
24 Sep - 02 Oct	Emirates
22 Sep - 02 Oct	Emirates
08 Sep - 11 Sep	Air France
08 Sep - 16 Sep	Air France
17 Sep - 25 Sep	Emirates
10 Sep - 30 Sep	Emirates
10 Sep - 02 Oct	Emirates
24 Sep - 01 Oct	Emirates
23 Sep - 02 Oct	Emirates
22 Sep - 27 Oct	Emirates
23 Sep - 21 Oct	Emirates
23 Sep - 01 Oct	Emirates
24 Sep - 05 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 617€

Return flights