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

Return flights

31 Dec - 07 Jan	Vietnam Airlines
31 Dec - 05 Jan	Vietnam Airlines
04 Dec - 09 Dec	Vietnam Airlines
03 Dec - 07 Dec	Vietnam Airlines
06 Dec - 09 Dec	Vietnam Airlines
04 Dec - 08 Dec	Vietnam Airlines
04 Dec - 12 Dec	Vietnam Airlines
23 Dec - 20 Jan	Scoot	direct
12 Dec - 14 Dec	Vietnam Airlines
13 Dec - 16 Dec	Scoot	direct
12 Dec - 16 Dec	Scoot	direct
31 Dec - 07 Jan	Scoot	direct
07 Dec - 11 Dec	Scoot
22 Dec - 29 Dec	Scoot
31 Dec - 05 Jan	Scoot	direct
30 Dec - 02 Jan	Scoot	direct
26 Dec - 04 Jan	Vietnam Airlines
24 Dec - 02 Jan	Thai AirAsia
26 Dec - 04 Jan	Scoot	direct
28 Dec - 04 Jan	Scoot	direct

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 $262

Return flights