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

Return flights

30 Dec - 03 Jan	VietJet Air
27 Dec - 31 Dec	VietJet Air
02 Dec - 09 Dec	China Southern
02 Dec - 07 Dec	China Southern
28 Dec - 04 Jan	China Southern
01 Dec - 07 Dec	China Southern
01 Dec - 02 Dec	China Southern
05 Dec - 10 Dec	Thai AirAsia
05 Dec - 15 Dec	Thai AirAsia
10 Dec - 15 Dec	Thai AirAsia
11 Dec - 15 Dec	Thai AirAsia
05 Dec - 17 Dec	Thai AirAsia
17 Dec - 05 Jan	Thai AirAsia
17 Dec - 02 Jan	Thai AirAsia
17 Dec - 04 Jan	Thai AirAsia
13 Dec - 02 Jan	Thai AirAsia
14 Dec - 02 Jan	Thai AirAsia
14 Dec - 04 Jan	Thai AirAsia
12 Dec - 02 Jan	Thai AirAsia
15 Dec - 05 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 $406

Return flights