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

Return flights

18 Sep - 09 Oct	Ryanair
29 Sep - 07 Oct	Air France
09 Sep - 23 Sep	Vueling Airlines
12 Sep - 21 Sep	Smart Wings
28 Sep - 08 Oct	Air France
28 Sep - 09 Oct	Air France
27 Sep - 09 Oct	Wizz Air Malta
11 Sep - 20 Sep	Ryanair
26 Sep - 11 Oct	Air Europa
02 Sep - 13 Sep	Ryanair
04 Sep - 11 Sep	Air Europa
11 Sep - 24 Sep	Ryanair
19 Sep - 21 Sep	Ryanair
01 Sep - 10 Sep	KLM
27 Sep - 19 Oct	Air France
14 Sep - 15 Sep	Transavia France
24 Sep - 30 Sep	Air France

Also check the deals for one-way flights from Valencia 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 Valencia to Seoul in September from 617€

Return flights