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

Return flights

07 Aug - 14 Aug	VietJet Air
08 Aug - 15 Aug	VietJet Air
11 Aug - 18 Aug	VietJet Air
13 Aug - 20 Aug	VietJet Air
10 Aug - 17 Aug	VietJet Air
06 Aug - 16 Aug	VietJet Air
23 Aug - 31 Aug	VietJet Air
01 Aug - 04 Aug	VietJet Air
15 Aug - 22 Aug	China Eastern
15 Aug - 18 Aug	China Southern
25 Aug - 01 Sep	VietJet Air
28 Aug - 03 Sep	Thai AirAsia
31 Aug - 05 Sep	VietJet Air
28 Aug - 10 Sep	Thai AirAsia
31 Aug - 13 Sep	China Southern
22 Aug - 01 Sep	VietJet Air
28 Aug - 12 Sep	Thai AirAsia
28 Aug - 01 Sep	Thai AirAsia
30 Aug - 03 Sep	Thai AirAsia
23 Aug - 03 Sep	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 214€

Return flights