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

Return flights

05 Dec - 09 Dec	Thai AirAsia
01 Dec - 09 Dec	AirAsia
01 Dec - 03 Dec	AirAsia
05 Dec - 06 Dec	Thai AirAsia
06 Dec - 09 Dec	AirAsia
05 Dec - 10 Dec	Thai AirAsia
01 Dec - 06 Dec	AirAsia
09 Dec - 10 Dec	AirAsia
05 Dec - 16 Dec	Thai AirAsia
01 Dec - 10 Dec	AirAsia
17 Dec - 07 Jan	AirAsia
17 Dec - 06 Jan	AirAsia
16 Dec - 06 Jan	AirAsia
26 Dec - 15 Jan	Thai AirAsia
29 Dec - 15 Jan	AirAsia
27 Dec - 07 Jan	Scoot Tigerair
27 Dec - 15 Jan	AirAsia
15 Dec - 04 Jan	AirAsia
26 Dec - 13 Jan	Thai AirAsia
24 Dec - 13 Jan	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 $359

Return flights