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

Return flights

15 May - 22 May	Air China
16 May - 30 May	Air China
04 May - 11 May	Etihad Airways
01 May - 10 May	Gulf Air
02 May - 11 May	Gulf Air
02 May - 09 May	Saudia
01 May - 29 May	Royal Brunei
09 May - 30 May	Etihad Airways
01 May - 17 May	Malaysia Airlines
07 May - 21 May	Qatar Airways
27 May - 08 Jun	British Airways
03 May - 18 Jun	Qantas
20 May - 05 Jun	Qantas	direct

Also check the deals for one-way flights from London to Perth 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 Perth in May from $928

Return flights