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

Return flights

20 Dec - 02 Jan	China Southern
02 Dec - 06 Dec	VietJet Air
15 Dec - 19 Dec	VietJet Air
06 Dec - 10 Dec	Thai AirAsia
06 Dec - 12 Dec	Thai AirAsia
10 Dec - 12 Dec	Thai AirAsia
06 Dec - 15 Dec	Thai AirAsia
06 Dec - 17 Dec	Thai AirAsia
11 Dec - 15 Dec	Thai AirAsia
11 Dec - 17 Dec	Thai AirAsia
10 Dec - 15 Dec	Thai AirAsia
11 Dec - 01 Jan	Thai AirAsia
16 Dec - 02 Jan	Thai AirAsia
16 Dec - 04 Jan	Thai AirAsia
16 Dec - 05 Jan	Thai AirAsia
16 Dec - 01 Jan	Thai AirAsia
12 Dec - 02 Jan	Thai AirAsia
12 Dec - 01 Jan	Thai AirAsia
31 Dec - 14 Jan	Lao Airlines
31 Dec - 16 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 345€

Return flights