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

Return flights

15 Dec - 18 Dec	China Southern
24 Dec - 02 Jan	China Southern
10 Dec - 15 Dec	Thai AirAsia
11 Dec - 15 Dec	Thai AirAsia
06 Dec - 10 Dec	Thai AirAsia
20 Dec - 27 Dec	China Southern
20 Dec - 30 Dec	China Southern
13 Dec - 20 Dec	VietJet Air
06 Dec - 15 Dec	Thai AirAsia
08 Dec - 10 Dec	Thai AirAsia
02 Dec - 05 Dec	Thai AirAsia
25 Dec - 14 Jan	Thai AirAsia
16 Dec - 03 Jan	Thai AirAsia
16 Dec - 06 Jan	Thai AirAsia
16 Dec - 04 Jan	Thai AirAsia
16 Dec - 05 Jan	Thai AirAsia
16 Dec - 02 Jan	Thai AirAsia
17 Dec - 03 Jan	Thai AirAsia
17 Dec - 06 Jan	Thai AirAsia
17 Dec - 04 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.

Book a cheap hotel in Seoul

Cheap car rent in Seoul

Cheapest return flights from Vientiane to Seoul in December from $364

Return flights