AirHint found the following cheapest one-way flights from Bangkok (DMK) to Vientiane (VTE) in September 2025 (see full year).

One-Way flights

30 Sep	Thai AirAsia	direct
29 Sep	Thai AirAsia	direct
24 Sep	Thai AirAsia	direct
26 Sep	Thai AirAsia	direct
23 Sep	Thai AirAsia	direct
25 Sep	Thai AirAsia	direct
27 Sep	Thai AirAsia	direct
28 Sep	Thai AirAsia	direct
16 Sep	Thai AirAsia	direct
21 Sep	Thai AirAsia	direct

Also check the deals for return flights from Bangkok 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.

Book a cheap hotel in Vientiane

Cheap car rent in Vientiane

Cheapest one-way flights from Bangkok to Vientiane in September from 64€

One-Way flights