AirHint found the following cheapest return flights from Lisbon (LIS) to Oslo (OSL) in August 2026 (see full year).
Return flights
| 20 Aug - 27 Aug | TAP | ||
| 20 Aug - 27 Aug | TAP | direct | |
| 20 Aug - 02 Sep | Norwegian Air Sweden AOC | ||
| 27 Aug - 02 Sep | Norwegian Air Sweden AOC |
Also check the deals for one-way flights from Lisbon to Oslo in August.
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