AirHint found the following cheapest one-way flights from Lisbon (LIS) to Oslo (OSL) in December 2025 (see full year).

One-Way flights

08 Dec	Ryanair
06 Dec	Ryanair
23 Dec	Vueling Airlines
17 Dec	Vueling Airlines
03 Dec	Vueling Airlines
05 Dec	Ryanair
08 Dec	TAP	direct
04 Dec	Norwegian Air Sweden AOC
20 Dec	TAP	direct
23 Dec	TAP	direct

Also check the deals for return flights from Lisbon to Oslo in December.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest one-way flights from Lisbon to Oslo in December from 65€

One-Way flights