Cheapest return flights from Lisbon to Sydney in December from $914

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

Return flights

05 Dec - 19 Jan easyJet
03 Dec - 26 Jan Ryanair
03 Dec - 28 Jan Ryanair
09 Dec - 21 Jan Pegasus Airlines
10 Dec - 21 Jan easyJet
09 Dec - 24 Jan Ryanair
01 Dec - 07 Dec Iberia
03 Dec - 08 Dec Ryanair
05 Dec - 11 Jan easyJet
01 Dec - 08 Dec Ryanair
01 Dec - 05 Dec Iberia
22 Dec - 10 Jan Ryanair
14 Dec - 16 Jan Aegean Airlines
16 Dec - 15 Jan Ryanair
01 Dec - 12 Dec Iberia
06 Dec - 08 Dec Air Europa
13 Dec - 28 Dec Wizz Air
03 Dec - 20 Dec Ryanair
06 Dec - 20 Dec Ryanair
21 Dec - 31 Dec Pegasus Airlines

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

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