Cheapest return flights from Shannon to Porto in March from $410
AirHint found the following cheapest return flights from Shannon (SNN) to Porto (OPO) in March 2025 (see full year).
Return flights
| 14 Mar - 17 Mar | Aer Lingus |
Also check the deals for one-way flights from Shannon to Porto in March.
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.
