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

Return flights

27 Sep - 06 Oct	LOT
27 Sep - 04 Oct	Finnair
08 Sep - 18 Sep	Finnair
26 Sep - 05 Oct	Finnair
24 Sep - 28 Sep	Finnair
15 Sep - 21 Sep	Finnair
16 Sep - 23 Sep	Finnair
18 Sep - 25 Sep	Finnair
10 Sep - 17 Sep	Finnair
11 Sep - 19 Oct	Finnair
19 Sep - 01 Oct	Finnair
16 Sep - 16 Oct	Finnair
30 Sep - 05 Oct	Finnair
09 Sep - 16 Sep	Finnair
06 Sep - 13 Sep	Finnair
06 Sep - 14 Sep	Finnair
05 Sep - 06 Oct	Finnair
07 Sep - 06 Oct	Finnair
07 Sep - 14 Sep	Finnair
04 Sep - 02 Oct	LOT

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 $538

Return flights