AirHint found the following cheapest return flights from Adelaide (ADL) to Bangkok (BKK) in December 2025 (see full year).

Return flights

09 Dec - 23 Dec	Jetstar
07 Dec - 11 Dec	Jetstar
16 Dec - 22 Dec	Jetstar
08 Dec - 14 Dec	Indonesia AirAsia
29 Dec - 31 Jan	Virgin Australia
06 Dec - 22 Dec	Jetstar
04 Dec - 19 Dec	Jetstar
10 Dec - 28 Dec	Jetstar
15 Dec - 22 Dec	Indonesia AirAsia
06 Dec - 23 Dec	Jetstar
07 Dec - 24 Dec	Jetstar
08 Dec - 05 Jan	Indonesia AirAsia
15 Dec - 05 Jan	Jetstar
16 Dec - 11 Jan	Jetstar
16 Dec - 01 Jan	Virgin Australia
17 Dec - 06 Jan	Virgin Australia
29 Dec - 06 Jan	Virgin Australia
13 Dec - 10 Jan	Jetstar
27 Dec - 05 Jan	Virgin Australia
29 Dec - 11 Jan	Virgin Australia

Also check the deals for one-way flights from Adelaide to Bangkok in December.

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 Adelaide to Bangkok in December from $708

Return flights