AirHint found the following cheapest return flights from Doha (DOH) to Sydney (SYD) in September 2025 (see full year).

Return flights

10 Sep - 17 Sep	Gulf Air
02 Sep - 16 Sep	Gulf Air
01 Sep - 15 Sep	Air Arabia
02 Sep - 09 Sep	Etihad Airways
16 Sep - 15 Oct	Air India
08 Sep - 15 Sep	IndiGo
26 Sep - 03 Oct	Air India
18 Sep - 02 Oct	Air India
03 Sep - 10 Sep	IndiGo
08 Sep - 15 Sep	Qatar Airways	direct
02 Sep - 09 Sep	Qatar Airways	direct
10 Sep - 17 Sep	Qatar Airways	direct
01 Sep - 15 Sep	Qatar Airways	direct
18 Sep - 02 Oct	Qatar Airways	direct
26 Sep - 03 Oct	Qatar Airways	direct

Also check the deals for one-way flights from Doha to Sydney in September.

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 Doha to Sydney in September from 594€

Return flights