AirHint found the following cheapest one-way flights from Cologne (CGN) to Helsinki (HEL) in May 2026 (see full year).
One-Way flights
| 17 May | Ryanair | ||
| 20 May | Ryanair | ||
| 08 May | Eurowings | ||
| 22 May | Eurowings | ||
| 01 May | Eurowings |
Also check the deals for return flights from Cologne to Helsinki in May.
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