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

Return flights

05 Sep - 15 Sep	China Eastern
05 Sep - 13 Sep	China Eastern
11 Sep - 14 Sep	China Eastern
01 Sep - 22 Sep	China Southern
01 Sep - 17 Sep	China Southern
02 Sep - 09 Sep	China Southern
03 Sep - 10 Sep	China Southern
02 Sep - 15 Sep	China Southern
02 Sep - 18 Sep	China Southern
08 Sep - 22 Sep	China Southern
28 Sep - 28 Oct	Turkish Airlines
10 Sep - 01 Oct	China Southern
16 Sep - 21 Oct	China Southern
17 Sep - 02 Oct	China Southern
06 Sep - 06 Oct	China Southern
07 Sep - 05 Oct	Air India
06 Sep - 05 Oct	Air India
13 Sep - 04 Oct	Air India
16 Sep - 05 Oct	China Southern
21 Sep - 05 Oct	Air India

Also check the deals for one-way flights from Sydney to Amsterdam 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 Amsterdam in September from 754€

Return flights