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

Return flights

09 Sep - 18 Sep	IndiGo
13 Sep - 17 Sep	IndiGo
04 Sep - 15 Sep	IndiGo
18 Sep - 24 Oct	Lufthansa
20 Sep - 21 Oct	Lufthansa
22 Sep - 28 Oct	IndiGo
25 Sep - 28 Oct	IndiGo
27 Sep - 24 Oct	IndiGo
30 Sep - 30 Oct	Turkish Airlines
09 Sep - 18 Sep	Finnair	direct
30 Sep - 30 Oct	Finnair	direct
22 Sep - 28 Oct	Finnair	direct
22 Sep - 31 Oct	Finnair	direct
24 Sep - 31 Oct	Finnair	direct
13 Sep - 17 Sep	Finnair	direct
04 Sep - 15 Sep	Finnair	direct

Also check the deals for one-way flights from Helsinki to Delhi 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 Helsinki to Delhi in September from $495

Return flights