Cheapest return flights from Perth to London in September from $889

Best time to book flights for Perth (PER) to London (LHR) flights at AirHint

AirHint found the following cheapest return flights from Perth (PER) to London (LHR) in September 2025 (see full year).

Return flights

08 Sep - 13 Sep Cathay Pacific
08 Sep - 22 Sep Cathay Pacific
10 Sep - 21 Sep Cathay Pacific
07 Sep - 19 Sep Cathay Pacific
12 Sep - 21 Sep Cathay Pacific
15 Sep - 29 Sep Cathay Pacific
10 Sep - 24 Sep Cathay Pacific
17 Sep - 25 Sep Singapore Airlines
09 Sep - 21 Sep Singapore Airlines
12 Sep - 26 Sep Singapore Airlines
10 Sep - 03 Oct Cathay Pacific
15 Sep - 15 Oct Cathay Pacific
17 Sep - 09 Oct Cathay Pacific
08 Sep - 14 Oct Cathay Pacific
21 Sep - 09 Oct Cathay Pacific
27 Sep - 15 Oct Qatar Airways
18 Sep - 06 Oct Qatar Airways
24 Sep - 06 Oct Qatar Airways
23 Sep - 07 Oct Qatar Airways
18 Sep - 02 Oct Qatar Airways

Also check the deals for one-way flights from Perth to London in September.

Skyscanner

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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