AirHint found the following cheapest return flights from Shannon (SNN) to Porto (OPO)
in May 2025 (see full year ).
Return flights
25 May
- 28 May
Ryanair
94 €
direct
18 May
- 28 May
Ryanair
95 €
direct
07 May
- 28 May
Ryanair
99 €
direct
28 May
- 29 May
Ryanair
101 €
direct
28 May
- 18 Jun
Ryanair
103 €
direct
18 May
- 22 May
Ryanair
104 €
direct
18 May
- 21 May
Ryanair
104 €
direct
28 May
- 05 Jun
Ryanair
107 €
direct
07 May
- 22 May
Ryanair
108 €
direct
07 May
- 21 May
Ryanair
108 €
direct
25 May
- 29 May
Ryanair
109 €
direct
18 May
- 29 May
Ryanair
110 €
direct
25 May
- 05 Jun
Ryanair
115 €
direct
18 May
- 05 Jun
Ryanair
116 €
direct
29 May
- 18 Jun
Ryanair
136 €
direct
22 May
- 05 Jun
Ryanair
140 €
direct
29 May
- 05 Jun
Ryanair
140 €
direct
28 May
- 01 Jun
Ryanair
199 €
direct
29 May
- 03 Jun
Ryanair
201 €
25 May
- 01 Jun
Ryanair
207 €
direct
Also check the deals for one-way flights from Shannon 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.