Cheapest return flights from Lisbon to Oslo in September from $173

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

Return flights

18 Sep - 21 Sep Ryanair
05 Sep - 09 Sep easyJet
26 Sep - 30 Sep easyJet
26 Sep - 29 Sep easyJet
27 Sep - 11 Oct Vueling Airlines
27 Sep - 15 Oct Vueling Airlines
09 Sep - 22 Sep Vueling Airlines
16 Sep - 19 Sep easyJet
24 Sep - 28 Sep Ryanair
27 Sep - 13 Oct Vueling Airlines
23 Sep - 26 Sep easyJet
05 Sep - 21 Sep easyJet
04 Sep - 08 Sep easyJet
27 Sep - 01 Oct Vueling Airlines
24 Sep - 11 Oct Vueling Airlines
27 Sep - 06 Oct Vueling Airlines
24 Sep - 13 Oct Vueling Airlines
17 Sep - 06 Oct Vueling Airlines
25 Sep - 11 Oct Norwegian Air Sweden AOC
25 Sep - 15 Oct Norwegian Air Sweden AOC

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

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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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