AirHint found the following cheapest return flights from Bangkok (BKK) to Perth (PER) in April 2026 (see full year).

Return flights

04 Apr - 11 Apr	AirAsia
29 Apr - 08 May	Thai AirAsia
28 Apr - 08 May	Thai AirAsia
25 Apr - 08 May	Thai AirAsia
29 Apr - 01 May	Thai AirAsia
28 Apr - 01 May	Thai AirAsia
04 Apr - 18 Apr	AirAsia
01 Apr - 18 Apr	Thai AirAsia
25 Apr - 01 May	Thai AirAsia
29 Apr - 06 May	Thai AirAsia
24 Apr - 08 May	AirAsia
28 Apr - 06 May	Thai AirAsia
25 Apr - 06 May	Thai AirAsia
04 Apr - 17 Apr	AirAsia
01 Apr - 17 Apr	Thai AirAsia
04 Apr - 23 Apr	AirAsia
29 Apr - 30 Apr	Thai AirAsia
28 Apr - 30 Apr	Thai AirAsia
25 Apr - 30 Apr	Thai AirAsia
24 Apr - 30 Apr	AirAsia

Also check the deals for one-way flights from Bangkok to Perth in April.

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 April from 290€

Return flights