AirHint found the following cheapest return flights from Rotterdam (RTM) to Helsinki (HEL) in January 2026 (see full year).
Return flights
| 22 Jan - 26 Jan | transavia | ||
| 19 Jan - 22 Jan | transavia | ||
| 15 Jan - 21 Jan | Pegasus Airlines | ||
| 02 Jan - 08 Jan | transavia |
Also check the deals for one-way flights from Rotterdam to Helsinki in January.
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