AirHint found the following cheapest return flights from Chicago (ORD) to Helsinki (HEL) in March 2026 (see full year).
Return flights
| 15 Mar - 22 Mar | Scandinavian Airlines | ||
| 03 Mar - 10 Mar | Finnair | ||
| 17 Mar - 24 Mar | Finnair | ||
| 29 Mar - 05 Apr | Finnair | ||
| 10 Mar - 17 Mar | Finnair |
Also check the deals for one-way flights from Chicago to Helsinki in March.
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