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

Return flights

21 Dec - 11 Jan	Ryanair
10 Dec - 15 Dec	Ryanair
21 Dec - 05 Jan	Ryanair
02 Dec - 06 Dec	easyJet
10 Dec - 16 Dec	Ryanair
09 Dec - 13 Dec	Ryanair
10 Dec - 17 Dec	Ryanair
20 Dec - 04 Jan	Ryanair
10 Dec - 12 Dec	Ryanair
12 Dec - 15 Dec	Ryanair
07 Dec - 10 Dec	Ryanair
15 Dec - 17 Dec	Ryanair
06 Dec - 09 Dec	Ryanair
07 Dec - 12 Jan	Ryanair
21 Dec - 04 Jan	Ryanair
25 Dec - 04 Jan	Air Europa
31 Dec - 02 Jan	Ryanair
29 Dec - 05 Jan	Ryanair
31 Dec - 03 Jan	Ryanair
29 Dec - 16 Jan	Scandinavian Airlines

Also check the deals for one-way 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.

Book a cheap hotel in Oslo

Cheap car rent in Oslo

Cheapest return flights from Lisbon to Oslo in December from 134€

Return flights