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

Return flights

14 Aug - 19 Aug	VietJet Air
21 Aug - 25 Aug	Thai AirAsia
11 Aug - 16 Aug	VietJet Air
31 Aug - 03 Sep	VietJet Air
21 Aug - 29 Aug	Thai AirAsia
28 Aug - 29 Aug	Thai AirAsia
21 Aug - 03 Sep	Thai AirAsia
28 Aug - 03 Sep	Thai AirAsia
28 Aug - 15 Sep	Thai AirAsia
21 Aug - 10 Sep	Thai AirAsia
28 Aug - 10 Sep	Thai AirAsia
28 Aug - 17 Sep	Thai AirAsia
28 Aug - 12 Sep	Thai AirAsia
02 Aug - 05 Aug	China Southern
07 Aug - 11 Aug	Jeju Air	direct
02 Aug - 10 Aug	China Southern
31 Aug - 15 Sep	Thai AirAsia
30 Aug - 03 Sep	Thai AirAsia
21 Aug - 22 Aug	Thai AirAsia
21 Aug - 27 Aug	Thai AirAsia

Also check the deals for one-way flights from Vientiane to Seoul 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 return flights from Vientiane to Seoul in August from 319€

Return flights