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

Return flights

25 Dec - 07 Jan	Jeju Air
25 Dec - 30 Dec	Jeju Air
20 Dec - 25 Dec	VietJet Air
22 Dec - 26 Dec	VietJet Air
25 Dec - 31 Dec	Jeju Air
21 Dec - 25 Dec	VietJet Air
25 Dec - 06 Jan	Jeju Air
25 Dec - 05 Jan	Jeju Air
25 Dec - 01 Jan	Jeju Air
25 Dec - 02 Jan	Jeju Air
22 Dec - 23 Jan	VietJet Air
20 Dec - 01 Jan	VietJet Air
22 Dec - 05 Jan	VietJet Air
24 Dec - 10 Jan	VietJet Air
18 Dec - 01 Jan	Vietnam Airlines
17 Dec - 25 Dec	Vietnam Airlines
18 Dec - 25 Dec	Vietnam Airlines
20 Dec - 26 Dec	VietJet Air
19 Dec - 24 Dec	VietJet Air
20 Dec - 24 Dec	VietJet Air

Also check the deals for one-way flights from Busan to Vientiane 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 Busan to Vientiane in December from $336

Return flights