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

Return flights

10 Oct - 15 Oct	Vietnam Airlines
13 Oct - 17 Oct	VietJet Air
31 Oct - 10 Nov	VietJet Air
14 Oct - 24 Oct	VietJet Air
12 Oct - 24 Oct	VietJet Air
09 Oct - 16 Oct	VietJet Air
12 Oct - 20 Oct	VietJet Air
14 Oct - 20 Oct	VietJet Air
13 Oct - 20 Oct	VietJet Air
09 Oct - 15 Oct	VietJet Air
27 Oct - 31 Oct	VietJet Air
29 Oct - 03 Nov	China Southern
21 Oct - 26 Nov	China Southern
25 Oct - 02 Nov	China Southern
29 Oct - 05 Nov	China Southern
29 Oct - 01 Nov	China Southern
29 Oct - 05 Nov	Jeju Air	direct
27 Oct - 06 Nov	VietJet Air
31 Oct - 07 Nov	VietJet Air
09 Oct - 08 Nov	VietJet Air

Also check the deals for one-way flights from Seoul to Vientiane 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 Seoul to Vientiane in October from 203€

Return flights