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

Return flights

22 Dec - 27 Dec	VietJet Air
11 Dec - 16 Dec	China Southern
01 Dec - 05 Dec	China Southern
29 Dec - 05 Jan	China Southern
28 Dec - 04 Jan	China Southern
20 Dec - 31 Dec	China Southern
19 Dec - 01 Jan	China Southern
10 Dec - 17 Dec	Thai AirAsia
15 Dec - 17 Dec	Thai AirAsia
10 Dec - 12 Dec	Thai AirAsia
06 Dec - 10 Dec	Thai AirAsia
06 Dec - 08 Dec	Thai AirAsia
06 Dec - 17 Dec	Thai AirAsia
15 Dec - 01 Jan	Thai AirAsia
15 Dec - 02 Jan	Thai AirAsia
15 Dec - 04 Jan	Thai AirAsia
17 Dec - 01 Jan	Thai AirAsia
17 Dec - 02 Jan	Thai AirAsia
16 Dec - 01 Jan	Thai AirAsia
16 Dec - 02 Jan	Thai AirAsia

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

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 December from 328€

Return flights