Cheapest return flights from Oulu to Helsinki in March from $143

AirHint found the following cheapest return flights from Oulu (OUL) to Helsinki (HEL) in March 2026 (see full year).

Return flights

29 Mar - 06 Apr Finnair direct
27 Mar - 06 Apr Finnair direct
30 Mar - 02 Apr Finnair direct
27 Mar - 29 Mar Finnair direct
27 Mar - 05 Apr Finnair direct
28 Mar - 06 Apr Finnair direct
21 Mar - 24 Mar Finnair direct
12 Mar - 30 Apr Finnair direct
20 Mar - 22 Mar Finnair direct
28 Mar - 05 Apr Finnair direct
13 Mar - 16 Mar Finnair direct
10 Mar - 17 Mar Finnair direct
13 Mar - 15 Mar Finnair direct
12 Mar - 15 Mar Finnair direct
28 Mar - 04 Apr Finnair direct
15 Mar - 19 Mar Finnair direct
06 Mar - 08 Mar Finnair direct
03 Mar - 10 Mar Finnair direct

Also check the deals for one-way flights from Oulu to Helsinki in March.

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