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

Return flights

17 Sep - 23 Sep	Lufthansa
17 Sep - 24 Sep	Lufthansa
16 Sep - 23 Sep	Lufthansa
16 Sep - 22 Sep	Lufthansa
17 Sep - 23 Sep	Finnair	direct
24 Sep - 30 Sep	Finnair	direct
14 Sep - 21 Sep	Lufthansa
30 Sep - 05 Oct	Finnair	direct
30 Sep - 07 Oct	Finnair	direct
11 Sep - 18 Sep	Qatar Airways
15 Sep - 22 Sep	IndiGo
27 Sep - 19 Oct	Lufthansa
17 Sep - 24 Sep	Finnair	direct
27 Sep - 19 Oct	Finnair	direct
18 Sep - 01 Oct	Finnair	direct
30 Sep - 09 Oct	Finnair	direct
28 Sep - 05 Oct	Finnair	direct
27 Sep - 02 Oct	Finnair	direct
28 Sep - 02 Oct	Turkish Airlines
28 Sep - 02 Oct	Finnair	direct

Also check the deals for one-way flights from Delhi to Helsinki 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 Helsinki in September from $560

Return flights