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

Return flights

23 Sep - 29 Sep	Etihad Airways
23 Sep - 28 Sep	Etihad Airways
08 Sep - 17 Sep	LOT
10 Sep - 15 Sep	LOT
10 Sep - 16 Sep	LOT
11 Sep - 16 Sep	LOT
08 Sep - 22 Oct	LOT
08 Sep - 15 Sep	LOT
08 Sep - 16 Sep	LOT
14 Sep - 21 Sep	Etihad Airways
15 Sep - 25 Sep	Scandinavian Airlines
22 Sep - 21 Oct	Scandinavian Airlines
09 Sep - 22 Oct	LOT
22 Sep - 02 Oct	Scandinavian Airlines
17 Sep - 16 Oct	Scandinavian Airlines
24 Sep - 23 Oct	Scandinavian Airlines
23 Sep - 22 Oct	Etihad Airways
24 Sep - 02 Oct	Emirates
18 Sep - 02 Oct	Air France
18 Sep - 03 Oct	Air France

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.

Book a cheap hotel in Prague

Cheap car rent in Prague

Cheapest return flights from Seoul to Prague in September from 523€

Return flights