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

Return flights

30 Sep - 12 Oct	Aegean Airlines
29 Sep - 12 Oct	Air Serbia
26 Sep - 06 Oct	Aegean Airlines
22 Sep - 10 Oct	Lufthansa
27 Sep - 12 Oct	Pegasus Airlines
28 Sep - 12 Oct	SunExpress
30 Sep - 07 Oct	Aegean Airlines
28 Sep - 30 Sep	Lufthansa
30 Sep - 01 Oct	Aegean Airlines
26 Sep - 07 Oct	Aegean Airlines
23 Sep - 08 Oct	Eurowings
22 Sep - 29 Sep	SWISS
26 Sep - 30 Sep	Aegean Airlines
21 Sep - 26 Sep	SWISS
19 Sep - 29 Sep	Lufthansa
22 Sep - 26 Sep	SWISS
19 Sep - 23 Sep	Pegasus Airlines
19 Sep - 22 Sep	Pegasus Airlines
22 Sep - 30 Sep	Air Serbia
20 Sep - 24 Sep	Pegasus Airlines

Also check the deals for one-way flights from Hannover 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 Hannover to Heraklion in September from 232€

Return flights