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

Return flights

12 May - 26 May	Air China
05 May - 12 May	Air China
01 May - 16 May	Air China
01 May - 17 May	Air China
01 May - 19 May	Air China
05 May - 19 May	Air China
03 May - 17 May	Air China
05 May - 26 May	Air China
07 May - 14 May	Air China
22 May - 31 May	Air China
16 May - 01 Jun	China Eastern
26 May - 02 Jun	China Eastern
18 May - 08 Jun	Vietnam Airlines
06 May - 10 Jun	China Eastern
04 May - 15 Jun	China Eastern
17 May - 12 Jun	China Eastern
07 May - 07 Jun	China Eastern
10 May - 08 Jun	China Eastern
31 May - 07 Jun	China Eastern
16 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.

Book a cheap hotel in Sydney

Cheap car rent in Sydney

Cheapest return flights from London to Sydney in May from 711€

Return flights