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

Return flights

03 Mar - 19 Mar	Air China
05 Mar - 15 Mar	Air China
06 Mar - 17 Mar	Air China
05 Mar - 12 Mar	Air China
06 Mar - 15 Mar	Air China
05 Mar - 14 Mar	Air China
05 Mar - 08 Mar	Air China
10 Mar - 17 Mar	Air China
06 Mar - 14 Mar	Air China
08 Mar - 19 Mar	Air China
10 Mar - 21 Apr	China Eastern
12 Mar - 23 Apr	China Eastern
11 Mar - 07 Apr	China Southern
01 Mar - 07 Apr	Hainan Airlines
01 Mar - 14 Apr	Hainan Airlines
12 Mar - 04 Apr	China Southern
04 Mar - 07 Apr	China Southern
03 Mar - 07 Apr	China Southern
02 Mar - 27 Apr	China Eastern
17 Mar - 26 Apr	China Eastern

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

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 March from 669€

Return flights