Cheapest return flights from Shannon to Porto in May from $36

Best time to book flights for Shannon (SNN) to Porto (OPO) flights at AirHint

AirHint found the following cheapest return flights from Shannon (SNN) to Porto (OPO) in May 2025 (see full year).

Return flights

14 May - 21 May Ryanair direct
15 May - 21 May Ryanair direct
08 May - 14 May Ryanair direct
08 May - 21 May Ryanair direct
14 May - 15 May Ryanair direct
14 May - 29 May Ryanair direct
07 May - 14 May Ryanair direct
07 May - 21 May Ryanair direct
15 May - 29 May Ryanair direct
08 May - 15 May Ryanair direct
14 May - 04 Jun Ryanair direct
15 May - 04 Jun Ryanair direct
21 May - 05 Jun Ryanair direct
21 May - 04 Jun Ryanair direct
22 May - 05 Jun Ryanair direct
22 May - 04 Jun Ryanair direct
18 May - 05 Jun Ryanair direct
18 May - 04 Jun Ryanair direct
21 May - 11 Jun Ryanair direct
22 May - 11 Jun Ryanair direct

Also check the deals for one-way flights from Shannon to Porto in May.

Skyscanner

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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