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

Return flights

25 Sep - 02 Oct	Air France
25 Sep - 30 Sep	Air France
24 Sep - 02 Oct	Air France
26 Sep - 02 Oct	Air France
22 Sep - 02 Oct	Air France
23 Sep - 30 Sep	Air France
29 Sep - 02 Oct	Air France
20 Sep - 27 Sep	KLM
29 Sep - 16 Oct	Air France
27 Sep - 04 Oct	KLM
29 Sep - 17 Oct	Iberia
20 Sep - 28 Sep	Vueling Airlines
30 Sep - 07 Oct	Air France
22 Sep - 28 Sep	Vueling Airlines
22 Sep - 04 Oct	Air France
19 Sep - 28 Sep	British Airways
26 Sep - 28 Sep	Iberia
19 Sep - 19 Sep	British Airways
22 Sep - 29 Sep	Turkish Airlines

Also check the deals for one-way flights from London to Havana 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 Havana in September from $649

Return flights