AirHint found the following cheapest return flights from Madrid (MAD) to Oslo (OSL) in September 2026 (see full year).

Return flights

04 Sep - 06 Sep	Norwegian
01 Sep - 08 Sep	Air Europa
01 Sep - 07 Sep	Iberia Express
17 Sep - 20 Sep	Norwegian	direct
17 Sep - 20 Sep	Norwegian
02 Sep - 07 Sep	Iberia
16 Sep - 21 Sep	Iberia	direct
09 Sep - 14 Sep	Iberia	direct
01 Sep - 07 Sep	Iberia	direct
02 Sep - 07 Sep	Iberia	direct

Also check the deals for one-way flights from Madrid to Oslo in September.

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 Madrid to Oslo in September from 119€

Return flights