Cheapest return flights from Dublin to Helsinki in September from $161

Best time to book flights for Dublin (DUB) to Helsinki (HEL) flights at AirHint

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

Return flights

08 Sep - 15 Sep Ryanair
10 Sep - 17 Sep Ryanair
23 Sep - 25 Sep Finnair direct
22 Sep - 26 Sep Finnair direct
24 Sep - 25 Sep Finnair direct
22 Sep - 25 Sep Finnair direct
19 Sep - 22 Sep Finnair
02 Sep - 05 Sep Finnair direct
29 Sep - 03 Oct Ryanair
12 Sep - 14 Sep Finnair
12 Sep - 14 Sep Finnair direct

Also check the deals for one-way flights from Dublin to Helsinki in September.

Skyscanner

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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