AirHint found the following cheapest return flights from Melbourne (MEL) to London (LGW) in September 2025 (see full year).

Return flights

27 Sep - 26 Oct	Turkish Airlines
25 Sep - 16 Oct	VietJet Air
30 Sep - 29 Oct	Emirates
22 Sep - 13 Oct	Jetstar
25 Sep - 30 Oct	Emirates
27 Sep - 31 Oct	Emirates
16 Sep - 23 Sep	Jetstar
14 Sep - 18 Sep	Batik Air Malaysia
15 Sep - 29 Sep	Jetstar
15 Sep - 21 Sep	Jetstar
28 Sep - 05 Oct	China Eastern
27 Sep - 06 Oct	AirAsia X
15 Sep - 25 Sep	Jetstar
18 Sep - 13 Oct	Scoot
16 Sep - 26 Sep	Jetstar
27 Sep - 25 Oct	Turkish Airlines
16 Sep - 30 Sep	Jetstar
19 Sep - 25 Sep	Batik Air Malaysia
25 Sep - 25 Sep	Emirates
24 Sep - 29 Sep	Virgin Australia

Also check the deals for one-way flights from Melbourne to London 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.

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Cheapest return flights from Melbourne to London in September from $1250

Return flights