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

Return flights

08 May - 17 May	Air China
08 May - 24 May	Air China
05 May - 12 May	Air China
21 May - 31 May	Air China
05 May - 19 May	Air China
10 May - 21 May	Air China
08 May - 12 May	Air China
03 May - 24 May	Air China
05 May - 17 May	Air China
07 May - 24 May	Air China
20 May - 01 Jun	China Eastern
26 May - 02 Jun	China Eastern
20 May - 03 Jun	China Eastern
26 May - 09 Jun	China Eastern
22 May - 05 Jun	China Eastern
05 May - 09 Jun	China Eastern
22 May - 11 Jun	China Eastern
25 May - 01 Jun	China Eastern
15 May - 05 Jun	China Eastern
23 May - 06 Jun	China Eastern

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

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 May from 665€

Return flights