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

Return flights

28 Apr - 14 May	Air China
10 Apr - 30 Apr	Air China
19 Apr - 28 Apr	Air China
16 Apr - 28 Apr	Air China
10 Apr - 26 Apr	Air China
16 Apr - 09 May	Air China
12 Apr - 26 Apr	Air China
28 Apr - 12 May	Qatar Airways
27 Apr - 25 May	Qatar Airways
24 Apr - 14 May	Wizz Air UK
20 Apr - 03 May	Qatar Airways
26 Apr - 06 May	Qatar Airways
28 Apr - 03 May	Qatar Airways
29 Apr - 10 May	Qatar Airways
24 Apr - 03 May	Qatar Airways
13 Apr - 27 Apr	Qatar Airways
13 Apr - 26 Apr	Qatar Airways
07 Apr - 21 Apr	easyJet
10 Apr - 24 Apr	Qatar Airways
11 Apr - 25 Apr	Qatar Airways

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 $837

Return flights