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

Return flights

19 Sep - 28 Sep	Air India
11 Sep - 18 Sep	Qatar Airways
10 Sep - 17 Sep	Qatar Airways
10 Sep - 18 Sep	Qatar Airways
15 Sep - 28 Sep	Finnair	direct
30 Sep - 07 Oct	Finnair	direct
29 Sep - 06 Oct	Finnair	direct
12 Sep - 20 Sep	Qatar Airways
18 Sep - 25 Sep	Lufthansa
19 Sep - 26 Sep	Qatar Airways
04 Sep - 08 Sep	Qatar Airways
28 Sep - 05 Oct	IndiGo
25 Sep - 02 Oct	IndiGo
20 Sep - 23 Sep	IndiGo
28 Sep - 05 Oct	Finnair	direct
28 Sep - 15 Oct	Finnair	direct
27 Sep - 05 Oct	Finnair	direct
25 Sep - 02 Oct	Finnair	direct
20 Sep - 09 Oct	Turkish Airlines
20 Sep - 09 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 482€

Return flights