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

Return flights

03 May - 12 May	Air China
14 May - 21 May	Air China
17 May - 24 May	Air China
05 May - 19 May	Air China
08 May - 21 May	Air China
10 May - 24 May	Air China
12 May - 26 May	Air China
03 May - 16 May	Air China
12 May - 24 May	Air China
08 May - 16 May	Air China
19 May - 08 Jun	Air India
13 May - 02 Jun	Air India
20 May - 10 Jun	Air India
30 May - 13 Jun	Air India
19 May - 04 Jun	Air India
28 May - 18 Jun	Air India
14 May - 11 Jun	Air India
29 May - 22 Jun	Air India
29 May - 29 Jun	Air India
29 May - 01 Jun	Air India

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 $832

Return flights