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

Return flights

30 Sep - 31 Oct	China Eastern
28 Sep - 13 Oct	China Eastern
27 Sep - 18 Oct	Qantas
28 Sep - 12 Oct	China Eastern
28 Sep - 18 Oct	China Eastern
24 Sep - 22 Oct	Thai Airways
24 Sep - 12 Oct	Thai Airways
26 Sep - 18 Oct	VietJet Air
22 Sep - 13 Oct	Thai Airways
27 Sep - 25 Oct	Turkish Airlines
17 Sep - 25 Sep	Turkish Airlines
17 Sep - 18 Sep	Batik Air Malaysia
26 Sep - 30 Sep	VietJet Air
20 Sep - 27 Sep	Jetstar
19 Sep - 25 Sep	Batik Air Malaysia
21 Sep - 27 Sep	Jetstar
18 Sep - 27 Sep	Jetstar
18 Sep - 30 Sep	Jetstar
17 Sep - 22 Sep	Qatar Airways
23 Sep - 28 Sep	Emirates

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 $980

Return flights