Cheapest return flights from Shannon to Porto in August from $80

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 August 2025 (see full year).

Return flights

07 Aug - 27 Aug Ryanair direct
21 Aug - 27 Aug Ryanair direct
24 Aug - 27 Aug Ryanair direct
14 Aug - 27 Aug Ryanair direct
31 Aug - 03 Sep Ryanair direct
21 Aug - 28 Aug Ryanair direct
31 Aug - 18 Sep Ryanair direct
21 Aug - 03 Sep Ryanair direct
14 Aug - 28 Aug Ryanair direct
07 Aug - 21 Aug Ryanair direct
14 Aug - 03 Sep Ryanair direct
13 Aug - 27 Aug Ryanair direct
27 Aug - 28 Aug Ryanair direct
07 Aug - 13 Aug Ryanair direct
27 Aug - 03 Sep Ryanair direct
13 Aug - 03 Sep Ryanair direct
31 Aug - 10 Sep Ryanair direct
31 Aug - 17 Sep Ryanair direct
21 Aug - 10 Sep Ryanair direct
24 Aug - 10 Sep Ryanair direct

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

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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