AirHint found the following cheapest return flights from Sandefjord (TRF) to Helsinki (HEL) in April 2026 (see full year).
Return flights
| 10 Apr - 12 Apr | Finnair | ||
| 04 Apr - 05 Apr | Ryanair | ||
| 21 Apr - 23 Apr | Finnair | ||
| 20 Apr - 23 Apr | Finnair |
Also check the deals for one-way flights from Sandefjord to Helsinki in April.
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