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

Return flights

17 Sep - 28 Sep	TUI	direct
17 Sep - 24 Sep	TUI	direct
10 Sep - 24 Sep	TUI	direct
10 Sep - 17 Sep	TUI	direct
14 Sep - 21 Sep	TUI	direct
17 Sep - 01 Oct	TUI	direct
21 Sep - 05 Oct	TUI	direct
24 Sep - 08 Oct	TUI	direct
24 Sep - 05 Oct	TUI	direct
24 Sep - 01 Oct	TUI	direct
28 Sep - 05 Oct	TUI	direct
26 Sep - 28 Sep	American Airlines
24 Sep - 29 Sep	Norse Atlantic Airways (UK)
10 Sep - 14 Sep	TUI	direct
25 Sep - 09 Oct	WestJet
11 Sep - 24 Sep	Norse Atlantic Airways (UK)
12 Sep - 26 Sep	Ryanair
19 Sep - 03 Oct	easyJet
29 Sep - 01 Oct	American Airlines

Also check the deals for one-way flights from London to Melbourne 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 London to Melbourne in September from 269€

Return flights