AirHint found the following cheapest return flights from London (LCY) to Heraklion (HER) in September 2025 (see full year).

Return flights

16 Sep - 26 Sep	SWISS
16 Sep - 22 Sep	SWISS
17 Sep - 26 Sep	Lufthansa
16 Sep - 23 Sep	SWISS
23 Sep - 03 Oct	SWISS
18 Sep - 26 Sep	SWISS
16 Sep - 17 Sep	ITA Airways
18 Sep - 22 Sep	SWISS
16 Sep - 25 Sep	SWISS
20 Sep - 26 Sep	SWISS
25 Sep - 29 Sep	SWISS
24 Sep - 08 Oct	KLM
16 Sep - 01 Oct	SWISS
22 Sep - 08 Oct	KLM
25 Sep - 01 Oct	SWISS
28 Sep - 03 Oct	SWISS
26 Sep - 01 Oct	ITA Airways
21 Sep - 02 Oct	ITA Airways
24 Sep - 01 Oct	Lufthansa
28 Sep - 06 Oct	SWISS

Also check the deals for one-way flights from London to Heraklion 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 Heraklion in September from $230

Return flights