AirHint found the following cheapest return flights from Colombo (CMB) to Vientiane (VTE) in December 2025 (see full year).
Return flights
| 18 Dec - 25 Dec | Thai AirAsia | ||
| 27 Dec - 14 Jan | Thai AirAsia | ||
| 12 Dec - 18 Dec | Thai AirAsia | ||
| 09 Dec - 03 Jan | Thai AirAsia | ||
| 10 Dec - 21 Dec | Thai AirAsia |
Also check the deals for one-way flights from Colombo to Vientiane in December.
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