AirHint found the following cheapest return flights from Heraklion (HER) to Oslo (OSL) in August 2025 (see full year).

Return flights

28 Aug - 04 Sep	Wizz Air
04 Aug - 07 Aug	Aegean Airlines
28 Aug - 11 Sep	Aegean Airlines
07 Aug - 14 Aug	easyJet
05 Aug - 14 Aug	Norwegian	direct
05 Aug - 07 Aug	Norwegian	direct
10 Aug - 14 Aug	easyJet
12 Aug - 14 Aug	Norwegian	direct
24 Aug - 31 Aug	Aegean Airlines
03 Aug - 05 Aug	Wizz Air
07 Aug - 14 Aug	Norwegian	direct

Also check the deals for one-way flights from Heraklion to Oslo in August.

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 Oslo in August from 200€

Return flights