Cheapest return flights from Oslo to Helsinki in March from $100

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

Return flights

19 Mar - 23 Mar Norwegian direct
15 Mar - 29 Mar Norwegian direct
15 Mar - 27 Mar Norwegian direct
09 Mar - 29 Mar Norwegian direct
09 Mar - 27 Mar Norwegian direct
01 Mar - 06 Mar Norwegian direct
01 Mar - 02 Mar Norwegian direct
15 Mar - 23 Mar Norwegian direct
09 Mar - 23 Mar Norwegian direct
09 Mar - 11 Mar Norwegian
31 Mar - 16 Apr Norwegian direct
15 Mar - 01 Apr Norwegian direct
22 Mar - 09 Apr Norwegian direct
22 Mar - 08 Apr Norwegian direct
22 Mar - 07 Apr Norwegian direct
22 Mar - 01 Apr Norwegian direct
23 Mar - 09 Apr Norwegian direct
23 Mar - 08 Apr Norwegian direct
23 Mar - 07 Apr Norwegian direct
23 Mar - 01 Apr Norwegian direct

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

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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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