AirHint found the following cheapest one-way flights from Seoul (ICN) to Vientiane (VTE) in August 2025 (see full year).

One-Way flights

22 Aug	VietJet Air
28 Aug	VietJet Air
25 Aug	VietJet Air
24 Aug	VietJet Air
26 Aug	VietJet Air
27 Aug	VietJet Air
23 Aug	VietJet Air
31 Aug	China Southern
12 Aug	Jeju Air	direct
18 Aug	Jeju Air	direct

Also check the deals for return flights from Seoul to Vientiane in August.

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 one-way flights from Seoul to Vientiane in August from 90€

One-Way flights