AirHint found the following cheapest return flights from Lisbon (LIS) to Oslo (OSL) in December 2026 (see full year).
Return flights
| 05 Dec - 10 Dec | easyJet | ||
| 30 Dec - 03 Jan | TAP | direct | |
| 18 Dec - 21 Dec | TAP | direct | |
| 05 Dec - 10 Dec | TAP | direct | |
| 06 Dec - 10 Dec | TAP | direct |
Also check the deals for one-way flights from Lisbon to Oslo in December.
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