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

Return flights

30 Sep - 21 Oct	Emirates
29 Sep - 29 Oct	Emirates
25 Sep - 26 Oct	Emirates
11 Sep - 15 Sep	Emirates
05 Sep - 13 Sep	Jetstar
08 Sep - 23 Sep	Emirates
10 Sep - 24 Sep	Emirates
11 Sep - 21 Sep	Emirates
07 Sep - 14 Sep	Emirates
07 Sep - 21 Sep	Emirates
04 Sep - 19 Sep	Emirates
07 Sep - 24 Sep	Emirates
17 Sep - 27 Sep	Emirates
09 Sep - 15 Oct	Emirates
28 Sep - 12 Oct	Emirates
26 Sep - 12 Oct	Emirates
25 Sep - 09 Oct	Qatar Airways
19 Sep - 04 Oct	Qatar Airways
08 Sep - 04 Oct	British Airways
08 Sep - 03 Oct	British Airways

Also check the deals for one-way flights from Adelaide 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 Adelaide to London in September from 1783CAD

Return flights