AirHint found the following cheapest return flights from Oslo (OSL) to Porto (OPO)
in May 2025 (see full year ).
Return flights
12 May
- 21 May
Norwegian
107 €
direct
12 May
- 28 May
Norwegian
129 €
direct
12 May
- 16 May
Norwegian
133 €
17 May
- 21 May
Vueling Airlines
136 €
12 May
- 19 May
Norwegian
138 €
direct
12 May
- 23 May
Norwegian
138 €
direct
19 May
- 21 May
Norwegian
148 €
direct
12 May
- 16 May
Norwegian
149 €
direct
12 May
- 30 May
Norwegian
150 €
direct
14 May
- 21 May
Norwegian
151 €
direct
26 May
- 13 Jun
Vueling Airlines
158 €
17 May
- 06 Jun
Vueling Airlines
190 €
21 May
- 11 Jun
Vueling Airlines
195 €
26 May
- 13 Jun
Norwegian
196 €
direct
26 May
- 16 Jun
Norwegian Air Sweden AOC
196 €
19 May
- 06 Jun
Vueling Airlines
197 €
26 May
- 11 Jun
Vueling Airlines
201 €
19 May
- 06 Jun
Norwegian
202 €
direct
21 May
- 06 Jun
Vueling Airlines
206 €
30 May
- 06 Jun
Volotea
207 €
Also check the deals for one-way flights from Oslo to Porto in May .
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.