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

Return flights

22 Sep - 19 Oct	VietJet Air
15 Sep - 21 Oct	VietJet Air
30 Sep - 14 Oct	Hainan Airlines
15 Sep - 21 Sep	VietJet Air
29 Sep - 14 Oct	China Eastern
28 Sep - 14 Oct	VietJet Air
15 Sep - 22 Oct	Scoot
24 Sep - 12 Oct	VietJet Air
17 Sep - 13 Oct	VietJet Air
24 Sep - 08 Oct	VietJet Air
29 Sep - 26 Oct	British Airways
16 Sep - 23 Sep	Turkish Airlines
21 Sep - 24 Sep	British Airways
21 Sep - 28 Sep	Etihad Airways
18 Sep - 25 Sep	Emirates
15 Sep - 29 Sep	Qatar Airways

Also check the deals for one-way flights from Sydney to Prague 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 Sydney to Prague in September from 1041€

Return flights