AirHint found the following cheapest return flights from Delhi (DEL) to Oslo (OSL) in September 2025 (see full year).

Return flights

10 Sep - 16 Sep	IndiGo
24 Sep - 02 Oct	Finnair
16 Sep - 21 Sep	Finnair
17 Sep - 24 Sep	Finnair
30 Sep - 05 Oct	Finnair
25 Sep - 10 Oct	Finnair
26 Sep - 02 Oct	Finnair
25 Sep - 01 Oct	Finnair
08 Sep - 13 Sep	IndiGo
08 Sep - 14 Sep	IndiGo
10 Sep - 17 Sep	IndiGo
09 Sep - 16 Sep	IndiGo
16 Sep - 18 Sep	IndiGo
05 Sep - 12 Sep	IndiGo
05 Sep - 19 Sep	IndiGo

Also check the deals for one-way flights from Delhi 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 Delhi to Oslo in September from $472

Return flights