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

Return flights

12 Sep - 15 Sep	Air China
23 Sep - 30 Sep	Emirates
10 Sep - 17 Sep	Emirates
08 Sep - 23 Sep	Finnair
26 Sep - 04 Oct	Air France
21 Sep - 26 Sep	LOT
07 Sep - 28 Sep	LOT
06 Sep - 28 Sep	Lufthansa
12 Sep - 19 Sep	Air France

Also check the deals for one-way flights from Seoul to Riga 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 Riga in September from 785€

Return flights