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

Return flights

30 Sep - 21 Oct	Wizz Air UK
30 Sep - 07 Oct	Wizz Air UK
16 Sep - 23 Sep	Wizz Air UK
02 Sep - 09 Sep	Wizz Air UK
16 Sep - 18 Oct	Ryanair
02 Sep - 16 Sep	Wizz Air UK
09 Sep - 30 Sep	Wizz Air UK
23 Sep - 07 Oct	Wizz Air UK
30 Sep - 13 Oct	Wizz Air UK
22 Sep - 21 Oct	easyJet
03 Sep - 17 Sep	Wizz Air
01 Sep - 15 Sep	Wizz Air UK
09 Sep - 16 Sep	Ryanair
06 Sep - 17 Sep	Wizz Air
27 Sep - 19 Oct	Wizz Air UK
07 Sep - 14 Sep	Wizz Air
03 Sep - 07 Sep	Wizz Air
30 Sep - 28 Oct	Wizz Air UK
01 Sep - 03 Oct	Wizz Air UK
20 Sep - 04 Oct	Wizz Air

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

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 September from 647€

Return flights