AirHint found the following cheapest one-way flights from Lisbon (LIS) to Helsinki (HEL) in October 2026 (see full year).
One-Way flights
| 10 Oct | easyJet | ||
| 04 Oct | Vueling Airlines | ||
| 01 Oct | Vueling Airlines | ||
| 01 Oct | Finnair | direct | |
| 04 Oct | Finnair | direct | |
| 10 Oct | Finnair | direct |
Also check the deals for return flights from Lisbon to Helsinki in October.
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