AirHint found the following cheapest return flights from Athens (ATH) to Oslo (OSL) in July 2025 (see full year).

Return flights

28 Jul - 03 Aug	Air Serbia
29 Jul - 07 Aug	Air Serbia
28 Jul - 31 Jul	Air Serbia
31 Jul - 06 Aug	Wizz Air UK
30 Jul - 06 Aug	Wizz Air Malta
29 Jul - 03 Aug	Ryanair
30 Jul - 08 Aug	Air Serbia
30 Jul - 07 Aug	Air Serbia
31 Jul - 05 Aug	Wizz Air
30 Jul - 01 Aug	Wizz Air Malta
27 Jul - 05 Aug	Volotea
28 Jul - 31 Jul	Aegean Airlines	direct
27 Jul - 28 Jul	Norwegian	direct
27 Jul - 30 Jul	Norwegian	direct
28 Jul - 30 Jul	Norwegian	direct

Also check the deals for one-way flights from Athens to Oslo in July.

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 Athens to Oslo in July from 259€

Return flights