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

Return flights

05 Dec - 08 Dec	China Southern
10 Dec - 12 Dec	Thai AirAsia
05 Dec - 10 Dec	Thai AirAsia
05 Dec - 12 Dec	Thai AirAsia
10 Dec - 17 Dec	Thai AirAsia
05 Dec - 17 Dec	Thai AirAsia
15 Dec - 17 Dec	Thai AirAsia
16 Dec - 17 Dec	Thai AirAsia
10 Dec - 26 Dec	Thai AirAsia
10 Dec - 20 Dec	Thai AirAsia
17 Dec - 07 Jan	Thai AirAsia
17 Dec - 02 Jan	Thai AirAsia
15 Dec - 02 Jan	Thai AirAsia
16 Dec - 02 Jan	Thai AirAsia
17 Dec - 04 Jan	Thai AirAsia
15 Dec - 04 Jan	Thai AirAsia
16 Dec - 04 Jan	Thai AirAsia
26 Dec - 14 Jan	Lao Airlines
31 Dec - 19 Jan	Lao Airlines
31 Dec - 14 Jan	Lao Airlines

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 346€

Return flights