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

Return flights

20 Dec - 20 Jan	Batik Air Malaysia
10 Dec - 14 Jan	Jetstar
05 Dec - 08 Dec	AirAsia
03 Dec - 08 Dec	Jetstar
13 Dec - 10 Jan	AirAsia
10 Dec - 14 Jan	Jetstar	direct
17 Dec - 19 Jan	Jetstar
17 Dec - 19 Jan	Jetstar	direct
05 Dec - 08 Dec	Jetstar	direct
15 Dec - 03 Jan	AirAsia
04 Dec - 10 Dec	Scoot
03 Dec - 08 Dec	Jetstar	direct
03 Dec - 10 Dec	Thai AirAsia
25 Dec - 12 Jan	AirAsia
25 Dec - 14 Jan	AirAsia
25 Dec - 13 Jan	AirAsia
01 Dec - 05 Dec	Jetstar	direct
02 Dec - 14 Dec	AirAsia
05 Dec - 14 Dec	AirAsia
06 Dec - 14 Dec	AirAsia

Also check the deals for one-way flights from Bangkok to Perth 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 Bangkok to Perth in December from 262€

Return flights