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

Return flights

29 Oct - 12 Nov	Ryanair
30 Oct - 28 Nov	Air Serbia
25 Oct - 31 Oct	Norwegian
22 Oct - 28 Oct	Norwegian
22 Oct - 24 Oct	Norwegian
22 Oct - 27 Oct	Norwegian
18 Oct - 28 Oct	Scandinavian Airlines
19 Oct - 23 Oct	Norwegian
19 Oct - 21 Oct	Norwegian
31 Oct - 03 Nov	Air Serbia
28 Oct - 06 Nov	Ryanair
24 Oct - 27 Oct	Aegean Airlines
18 Oct - 23 Oct	Scandinavian Airlines
27 Oct - 30 Oct	Air Serbia
30 Oct - 03 Nov	Ryanair
28 Oct - 11 Nov	Ryanair
25 Oct - 23 Nov	Norwegian
27 Oct - 03 Nov	Ryanair
28 Oct - 04 Nov	Ryanair
29 Oct - 02 Nov	Ryanair

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

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 Oslo to Athens in October from 144€

Return flights