AirHint found the following cheapest return flights from Vientiane (VTE) to Seoul (ICN) in October 2025 (see full year).

Return flights

01 Oct - 31 Oct	VietJet Air
02 Oct - 10 Oct	VietJet Air
19 Oct - 03 Nov	VietJet Air
02 Oct - 17 Oct	Thai AirAsia
01 Oct - 17 Oct	Thai AirAsia
01 Oct - 10 Oct	Thai AirAsia
15 Oct - 20 Oct	China Southern
01 Oct - 13 Oct	Thai AirAsia
02 Oct - 15 Oct	Thai AirAsia
01 Oct - 15 Oct	Thai AirAsia
25 Oct - 27 Oct	Thai AirAsia
25 Oct - 03 Nov	Thai AirAsia
25 Oct - 10 Nov	Thai AirAsia
28 Oct - 03 Nov	Thai AirAsia
28 Oct - 17 Nov	Thai AirAsia
28 Oct - 10 Nov	Thai AirAsia
18 Oct - 03 Nov	Thai AirAsia
24 Oct - 10 Nov	Thai AirAsia
25 Oct - 07 Nov	Thai AirAsia
28 Oct - 07 Nov	Thai AirAsia

Also check the deals for one-way flights from Vientiane to Seoul in October.

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 Vientiane to Seoul in October from 287€

Return flights