Cheapest return flights from Oslo to Helsinki in March from $121

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

Return flights

20 Mar - 30 Mar Norwegian direct
06 Mar - 13 Mar Norwegian
06 Mar - 08 Mar Norwegian
19 Mar - 22 Mar airBaltic
09 Mar - 16 Mar airBaltic
12 Mar - 19 Mar airBaltic
31 Mar - 02 Apr airBaltic
19 Mar - 30 Mar Norwegian direct
12 Mar - 30 Mar Norwegian direct
06 Mar - 26 Mar Norwegian direct
06 Mar - 19 Mar Norwegian direct
31 Mar - 13 Apr Norwegian direct
20 Mar - 02 Apr Norwegian direct
26 Mar - 13 Apr Norwegian direct
22 Mar - 10 Apr Norwegian direct
31 Mar - 10 Apr Norwegian direct
31 Mar - 17 Apr Norwegian direct
19 Mar - 02 Apr Norwegian direct
26 Mar - 10 Apr Norwegian direct
22 Mar - 02 Apr Norwegian direct

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

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