AirHint found the following cheapest return flights from Porto (OPO) to Shannon (SNN)
in August 2025 (see full year ).
Return flights
14 Aug
- 21 Aug
Ryanair
130 €
direct
14 Aug
- 20 Aug
Ryanair
131 €
direct
14 Aug
- 31 Aug
Ryanair
135 €
direct
14 Aug
- 28 Aug
Ryanair
135 €
direct
14 Aug
- 24 Aug
Ryanair
137 €
direct
06 Aug
- 21 Aug
Ryanair
141 €
direct
06 Aug
- 20 Aug
Ryanair
142 €
direct
06 Aug
- 07 Aug
Ryanair
142 €
direct
06 Aug
- 24 Aug
Ryanair
148 €
direct
21 Aug
- 31 Aug
Ryanair
151 €
direct
31 Aug
- 14 Sep
Ryanair
156 €
direct
31 Aug
- 18 Sep
Ryanair
168 €
direct
24 Aug
- 14 Sep
Ryanair
172 €
direct
31 Aug
- 10 Sep
Ryanair
178 €
direct
31 Aug
- 11 Sep
Ryanair
180 €
direct
21 Aug
- 10 Sep
Ryanair
181 €
direct
21 Aug
- 11 Sep
Ryanair
183 €
direct
24 Aug
- 10 Sep
Ryanair
194 €
direct
24 Aug
- 11 Sep
Ryanair
196 €
direct
Also check the deals for one-way flights from Porto to Shannon in August .
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.