AirHint found the following cheapest return flights from Colombo (CMB) to Vientiane (VTE) in July 2025 (see full year).

Return flights

14 Jul - 21 Jul	Thai AirAsia
16 Jul - 21 Jul	Thai AirAsia
14 Jul - 02 Aug	Thai AirAsia
06 Jul - 21 Jul	Thai AirAsia
16 Jul - 05 Aug	Thai AirAsia
14 Jul - 24 Jul	Thai AirAsia
14 Jul - 23 Jul	Thai AirAsia
07 Jul - 21 Jul	AirAsia
16 Jul - 02 Aug	Thai AirAsia
16 Jul - 24 Jul	Thai AirAsia
16 Jul - 23 Jul	Thai AirAsia
31 Jul - 05 Aug	Thai AirAsia
31 Jul - 10 Aug	Thai AirAsia
31 Jul - 02 Aug	Thai AirAsia
31 Jul - 08 Aug	Thai AirAsia
31 Jul - 09 Aug	Thai AirAsia
06 Jul - 24 Jul	Thai AirAsia
06 Jul - 23 Jul	Thai AirAsia

Also check the deals for one-way flights from Colombo to Vientiane in July.

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 Colombo to Vientiane in July from $419

Return flights