AirHint found the following cheapest return flights from Athens (ATH) to Oslo (OSL) in April 2026 (see full year).

Return flights

23 Apr - 30 May	LOT
16 Apr - 23 Apr	SWISS
08 Apr - 15 Apr	Scandinavian Airlines
14 Apr - 19 Apr	LOT
09 Apr - 16 Apr	LOT
01 Apr - 15 Apr	Norwegian
01 Apr - 15 Apr	Norwegian	direct
08 Apr - 15 Apr	Norwegian	direct
08 Apr - 19 Apr	Vueling Airlines
01 Apr - 19 Apr	Norwegian

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

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 April from $211

Return flights