AirHint found the following cheapest return flights from Prague (PRG) to Seoul (ICN) in September 2026 (see full year).

Return flights

06 Sep - 15 Sep	Etihad Airways
17 Sep - 29 Sep	Etihad Airways
03 Sep - 15 Sep	Etihad Airways
01 Sep - 13 Sep	Etihad Airways
01 Sep - 14 Sep	Etihad Airways
21 Sep - 18 Oct	Hainan Airlines
19 Sep - 29 Sep	Etihad Airways
11 Sep - 27 Sep	Qatar Airways
07 Sep - 20 Sep	Etihad Airways
16 Sep - 23 Sep	Etihad Airways
02 Sep - 09 Sep	Korean Air	direct
21 Sep - 06 Oct	Finnair
25 Sep - 24 Oct	LOT
26 Sep - 17 Oct	Ryanair
26 Sep - 03 Oct	Finnair

Also check the deals for one-way flights from Prague to Seoul 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 Prague to Seoul in September from 549€

Return flights