Cheapest return flights from Dublin to Helsinki in September from $165

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

17 Sep - 20 Sep Ryanair
26 Sep - 29 Sep Ryanair
03 Sep - 05 Sep Ryanair
27 Sep - 30 Sep Scandinavian Airlines
03 Sep - 11 Sep Scandinavian Airlines
19 Sep - 21 Sep Ryanair
18 Sep - 21 Sep Scandinavian Airlines
03 Sep - 11 Sep Finnair direct
17 Sep - 20 Sep Finnair direct
03 Sep - 05 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.

Book a cheap hotel in Helsinki

Cheap car rent in Helsinki