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
11 Sep - 19 Sep	IndiGo
29 Sep - 30 Oct	Pegasus Airlines
05 Sep - 24 Sep	IndiGo
05 Sep - 25 Sep	IndiGo
05 Sep - 29 Sep	IndiGo
13 Sep - 17 Sep	IndiGo
13 Sep - 24 Sep	IndiGo
15 Sep - 11 Oct	Lufthansa
20 Sep - 18 Oct	Lufthansa
28 Sep - 25 Oct	Lufthansa
27 Sep - 25 Oct	Lufthansa
20 Sep - 21 Oct	Lufthansa
04 Sep - 19 Oct	Lufthansa
26 Sep - 26 Oct	Pegasus Airlines
22 Sep - 28 Oct	IndiGo
25 Sep - 28 Oct	IndiGo
05 Sep - 26 Sep	Lufthansa
05 Sep - 28 Sep	Lufthansa
01 Sep - 05 Sep	Pegasus Airlines

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 422€

Return flights