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

Return flights

04 Apr - 21 Apr	Ryanair
28 Apr - 17 May	Ryanair
04 Apr - 03 May	Ryanair
21 Apr - 01 May	Ryanair
28 Apr - 05 May	Ryanair
04 Apr - 20 Apr	Ryanair
07 Apr - 20 Apr	Ryanair
03 Apr - 28 Apr	Ryanair
03 Apr - 08 May	Ryanair
21 Apr - 21 May	Ryanair
14 Apr - 28 Apr	Ryanair
04 Apr - 18 Apr	Ryanair
20 Apr - 30 Apr	Ryanair
08 Apr - 19 May	Ryanair
12 Apr - 27 Apr	Ryanair
03 Apr - 18 Apr	Ryanair
02 Apr - 18 Apr	Ryanair
28 Apr - 19 May	Turkish Airlines
29 Apr - 10 May	Turkish Airlines
28 Apr - 07 May	Turkish Airlines

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

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 April from $1074

Return flights