Cheapest return flights from Sydney to Bangkok in April from $587

Best time to book flights for Sydney (SYD) to Bangkok (BKK) flights at AirHint

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

Return flights

14 Apr - 22 Apr Philippine Airlines
08 Apr - 15 Apr Philippine Airlines
13 Apr - 26 Apr Philippine Airlines
09 Apr - 16 Apr Philippine Airlines
09 Apr - 15 Apr Philippine Airlines
19 Apr - 05 May AirAsia X
25 Apr - 05 May AirAsia X
19 Apr - 04 May AirAsia X
25 Apr - 30 Apr AirAsia X
19 Apr - 24 Apr AirAsia X
19 Apr - 30 Apr AirAsia X
25 Apr - 04 May AirAsia X
03 Apr - 15 Apr Philippine Airlines
03 Apr - 24 Apr Philippine Airlines
01 Apr - 02 May Cebu Pacific
30 Apr - 05 May AirAsia X
30 Apr - 04 May AirAsia X
16 Apr - 05 May AirAsia X
16 Apr - 04 May AirAsia X
14 Apr - 05 May AirAsia X

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

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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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