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

Return flights

03 Apr - 06 Apr	Air Serbia
24 Apr - 29 Apr	SWISS
17 Apr - 20 Apr	SWISS
30 Apr - 04 May	SWISS
17 Apr - 19 Apr	Lufthansa
30 Apr - 03 May	SWISS
29 Apr - 03 May	SWISS
27 Apr - 01 May	Lufthansa
02 Apr - 06 Apr	Ryanair
10 Apr - 20 Apr	Norwegian	direct
10 Apr - 13 Apr	Norwegian	direct
20 Apr - 21 Apr	Norwegian
04 Apr - 06 Apr	SWISS
04 Apr - 07 Apr	easyJet
20 Apr - 04 May	Norwegian	direct
20 Apr - 01 May	Norwegian	direct
20 Apr - 08 May	Norwegian
10 Apr - 01 May	Norwegian	direct
27 Apr - 15 May	Norwegian	direct
17 Apr - 04 May	Norwegian	direct

Also check the deals for one-way flights from Naples 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 Naples to Oslo in April from 134€

Return flights