Cheapest return flights from Perth to London in September from $927

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

10 Sep - 17 Sep Cathay Pacific
08 Sep - 15 Sep Cathay Pacific
10 Sep - 21 Sep Cathay Pacific
10 Sep - 23 Sep Cathay Pacific
15 Sep - 23 Oct Malaysia Airlines
16 Sep - 23 Oct Malaysia Airlines
09 Sep - 23 Oct Malaysia Airlines
11 Sep - 23 Oct Malaysia Airlines
08 Sep - 23 Oct Malaysia Airlines
12 Sep - 22 Sep Cathay Pacific
07 Sep - 14 Sep Cathay Pacific
12 Sep - 19 Sep Cathay Pacific
14 Sep - 21 Sep Cathay Pacific
19 Sep - 26 Sep Cathay Pacific
14 Sep - 23 Oct Malaysia Airlines
07 Sep - 23 Oct Malaysia Airlines
17 Sep - 24 Sep Singapore Airlines
15 Sep - 06 Oct Cathay Pacific
22 Sep - 06 Oct Cathay Pacific
17 Sep - 21 Oct Cathay Pacific

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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