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

Return flights

11 May - 18 May	Qatar Airways
19 May - 02 Jun	Qatar Airways
05 May - 04 Jun	Qatar Airways
14 May - 29 May	Qatar Airways
04 May - 22 May	Qatar Airways
01 May - 11 May	Qatar Airways
02 May - 11 May	Qatar Airways
01 May - 06 May	Qatar Airways
05 May - 10 May	Qatar Airways
07 May - 17 May	Qatar Airways
23 May - 01 Jun	Qatar Airways
08 May - 15 May	Qatar Airways
15 May - 30 May	Qatar Airways
29 May - 06 Jun	Qatar Airways
16 May - 06 Jun	British Airways
30 May - 19 Jun	British Airways

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.

Book a cheap hotel in Perth

Cheap car rent in Perth

Cheapest return flights from London to Perth in May from $1208

Return flights