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

Return flights

15 Oct - 20 Oct	Ryanair
18 Oct - 25 Oct	Ryanair
22 Oct - 28 Oct	Ryanair
02 Oct - 15 Oct	Ryanair
10 Oct - 13 Oct	Ryanair
17 Oct - 20 Oct	Ryanair
09 Oct - 13 Oct	Ryanair
16 Oct - 21 Oct	easyJet
01 Oct - 06 Oct	Ryanair
15 Oct - 18 Oct	Ryanair
23 Oct - 10 Nov	Ryanair
27 Oct - 04 Nov	Ryanair
31 Oct - 15 Nov	Ryanair
11 Oct - 08 Nov	Ryanair
25 Oct - 03 Nov	Wizz Air
29 Oct - 02 Nov	Ryanair
31 Oct - 14 Nov	Ryanair
25 Oct - 03 Nov	TAP	direct
23 Oct - 10 Nov	TAP	direct
29 Oct - 09 Nov	Vueling Airlines

Also check the deals for one-way flights from Lisbon to Oslo in October.

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 return flights from Lisbon to Oslo in October from $140

Return flights