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

Return flights

12 Jul - 01 Aug	Scoot Tigerair
18 Jul - 02 Aug	AirAsia X
26 Jul - 02 Aug	Scoot Tigerair
18 Jul - 24 Jul	AirAsia X
18 Jul - 26 Jul	AirAsia X
18 Jul - 28 Jul	China Southern
14 Jul - 02 Aug	AirAsia X
07 Jul - 24 Jul	AirAsia X
07 Jul - 26 Jul	AirAsia X
05 Jul - 01 Aug	Scoot Tigerair
07 Jul - 10 Jul	AirAsia X
14 Jul - 24 Jul	AirAsia X
14 Jul - 26 Jul	AirAsia X
07 Jul - 17 Jul	AirAsia X
14 Jul - 17 Jul	AirAsia X
07 Jul - 01 Aug	Thai Airways
06 Jul - 01 Aug	Qantas

Also check the deals for one-way flights from Sydney 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 Sydney to Vientiane in July from 453€

Return flights