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

Return flights

10 Sep - 17 Sep	Transavia France
11 Sep - 18 Sep	Transavia France
16 Sep - 19 Sep	Volotea
30 Sep - 04 Oct	Volotea
30 Sep - 03 Oct	Volotea
26 Sep - 29 Sep	Ryanair
18 Sep - 25 Sep	easyJet
25 Sep - 29 Sep	easyJet
17 Sep - 20 Sep	Volotea
18 Sep - 23 Sep	Volotea
25 Sep - 02 Oct	easyJet
25 Sep - 01 Oct	easyJet
09 Sep - 16 Sep	Jet2
22 Sep - 26 Sep	Transavia France
29 Sep - 01 Oct	Ryanair
29 Sep - 02 Oct	Aegean Airlines
29 Sep - 05 Oct	Aegean Airlines
27 Sep - 05 Oct	Aegean Airlines

Also check the deals for one-way flights from Heraklion to Barcelona 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 Heraklion to Barcelona in September from $168

Return flights