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

Return flights

06 Dec - 13 Dec	Thai Lion Air
17 Dec - 06 Jan	Thai AirAsia
02 Dec - 04 Dec	Thai AirAsia
06 Dec - 12 Dec	Thai AirAsia
30 Dec - 06 Jan	Scoot
06 Dec - 10 Dec	Thai AirAsia
06 Dec - 11 Dec	Thai AirAsia
06 Dec - 09 Dec	Thai AirAsia
31 Dec - 06 Jan	AirAsia
31 Dec - 20 Jan	AirAsia
31 Dec - 21 Jan	AirAsia
01 Dec - 03 Dec	AirAsia
01 Dec - 04 Dec	AirAsia
10 Dec - 12 Dec	Thai AirAsia
02 Dec - 12 Dec	Thai AirAsia
29 Dec - 03 Jan	Vietnam Airlines
31 Dec - 11 Jan	AirAsia
18 Dec - 06 Jan	Thai AirAsia
31 Dec - 18 Jan	AirAsia
22 Dec - 06 Jan	Thai AirAsia

Also check the deals for one-way flights from Singapore 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 Singapore to Vientiane in December from $327

Return flights