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

Return flights

12 Apr - 02 May	Air China
14 Apr - 02 May	Air China
07 Apr - 29 Apr	Air China
07 Apr - 02 May	SKY express
07 Apr - 28 Apr	Air China
09 Apr - 01 May	Air China
16 Apr - 26 Apr	Air China
07 Apr - 21 Apr	Norwegian
10 Apr - 23 Apr	Norse Atlantic Airways (UK)
28 Apr - 12 May	SKY express
13 Apr - 03 May	Air China
07 Apr - 05 May	SKY express
01 Apr - 25 Apr	China Eastern
02 Apr - 23 Apr	China Eastern
16 Apr - 09 May	Air China
04 Apr - 02 May	Norwegian Air Sweden AOC
01 Apr - 21 Apr	Norwegian
07 Apr - 23 Apr	Norwegian
07 Apr - 30 Apr	Norwegian
13 Apr - 07 May	Wizz Air UK

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 $808

Return flights