AirHint found the following cheapest return flights from Sydney (SYD) to Lisbon (LIS) in July 2025 (see full year).

Return flights

27 Jul - 24 Aug	China Eastern
28 Jul - 10 Aug	Etihad Airways
17 Jul - 23 Jul	China Eastern
25 Jul - 10 Aug	Etihad Airways
18 Jul - 18 Aug	Turkish Airlines
17 Jul - 21 Aug	Turkish Airlines
16 Jul - 14 Aug	China Eastern
27 Jul - 31 Jul	China Eastern
24 Jul - 31 Jul	Air China
26 Jul - 31 Jul	China Eastern
07 Jul - 21 Jul	China Eastern
07 Jul - 22 Jul	China Eastern
21 Jul - 03 Aug	Etihad Airways
27 Jul - 03 Aug	Air China
25 Jul - 01 Aug	Etihad Airways
17 Jul - 08 Aug	Emirates
15 Jul - 22 Jul	China Eastern
10 Jul - 21 Jul	China Eastern
10 Jul - 17 Jul	China Eastern
15 Jul - 30 Jul	Qatar Airways

Also check the deals for one-way flights from Sydney to Lisbon in July.

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 Lisbon in July from $1324

Return flights