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

Return flights

10 Sep - 14 Sep	Norwegian
24 Sep - 28 Sep	Norwegian
09 Sep - 15 Sep	Iberia	direct
03 Sep - 13 Sep	Norwegian	direct
10 Sep - 13 Sep	Norwegian	direct
04 Sep - 13 Sep	Iberia
14 Sep - 21 Sep	Iberia
01 Sep - 12 Sep	Iberia Express
01 Sep - 05 Sep	Iberia Express
14 Sep - 24 Sep	Iberia

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 118€

Return flights