AirHint found the following cheapest return flights from Guangzhou (CAN) to London (LHR) in September 2025 (see full year).

Return flights

24 Sep - 29 Oct	Thai AirAsia
25 Sep - 15 Oct	Thai Lion Air
22 Sep - 29 Sep	Thai AirAsia
23 Sep - 15 Oct	VietJet Air
23 Sep - 30 Sep	Vietnam Airlines
25 Sep - 07 Oct	Thai AirAsia
24 Sep - 27 Sep	VietJet Air
26 Sep - 07 Oct	Thai AirAsia
21 Sep - 15 Oct	Hainan Airlines
26 Sep - 17 Oct	Thai AirAsia
24 Sep - 11 Oct	VietJet Air
23 Sep - 11 Oct	Vietnam Airlines
20 Sep - 15 Oct	Hainan Airlines

Also check the deals for one-way flights from Guangzhou 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 Guangzhou to London in September from $906

Return flights