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

Return flights

14 Apr - 19 May	Air China
21 Apr - 12 May	Air China
26 Apr - 07 May	Air China
14 Apr - 10 May	Air China
28 Apr - 10 May	Air China
14 Apr - 12 May	Air China
26 Apr - 17 May	Air China
14 Apr - 02 May	Air China
21 Apr - 14 May	Air China
28 Apr - 02 May	Air China
14 Apr - 21 Apr	Air China
07 Apr - 26 Apr	China Eastern
05 Apr - 26 Apr	China Eastern
13 Apr - 26 Apr	China Eastern
10 Apr - 26 Apr	China Eastern
21 Apr - 26 Apr	Air China
08 Apr - 29 Apr	China Eastern
05 Apr - 22 Apr	China Eastern
12 Apr - 26 Apr	China Eastern
06 Apr - 28 Apr	China Eastern

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 607€

Return flights