AirHint found the following cheapest return flights from Paris (CDG) to Vientiane (VTE) in September 2025 (see full year).

Return flights

17 Sep - 05 Oct	China Eastern
19 Sep - 05 Oct	China Eastern
20 Sep - 08 Oct	China Eastern
20 Sep - 10 Oct	China Eastern
02 Sep - 23 Sep	Aegean Airlines
12 Sep - 16 Sep	Vietnam Airlines
04 Sep - 25 Sep	China Southern
08 Sep - 21 Sep	China Southern
18 Sep - 05 Oct	Vietnam Airlines
22 Sep - 28 Sep	Etihad Airways
15 Sep - 22 Sep	Etihad Airways
25 Sep - 30 Oct	China Southern
22 Sep - 09 Oct	China Southern
22 Sep - 30 Sep	Thai Airways
15 Sep - 15 Oct	China Southern

Also check the deals for one-way flights from Paris to Vientiane in September.

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 Paris to Vientiane in September from 578€

Return flights