AirHint found the following cheapest return flights from London (STN) to Sydney (SYD) in January 2026 (see full year).

Return flights

17 Jan - 25 Jan	Ryanair
17 Jan - 29 Jan	Ryanair
29 Jan - 09 Feb	Pegasus Airlines
17 Jan - 30 Jan	Ryanair
17 Jan - 16 Feb	Ryanair
25 Jan - 29 Jan	Ryanair
23 Jan - 29 Jan	Pegasus Airlines
31 Jan - 16 Feb	Ryanair
17 Jan - 09 Feb	Ryanair
17 Jan - 28 Jan	Ryanair
17 Jan - 04 Feb	Ryanair
23 Jan - 09 Feb	Pegasus Airlines
23 Jan - 02 Feb	Pegasus Airlines
30 Jan - 23 Feb	Pegasus Airlines
31 Jan - 08 Feb	Pegasus Airlines
30 Jan - 08 Feb	Pegasus Airlines
18 Jan - 30 Jan	Ryanair
12 Jan - 22 Jan	Ryanair
10 Jan - 18 Jan	Ryanair
21 Jan - 27 Jan	Ryanair

Also check the deals for one-way flights from London to Sydney in January.

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 London to Sydney in January from $1122

Return flights