Cheapest return flights from Porto to Shannon in August from $107

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

Return flights

21 Aug - 28 Aug Ryanair direct
21 Aug - 24 Aug Ryanair direct
28 Aug - 31 Aug Ryanair direct
28 Aug - 14 Sep Ryanair direct
21 Aug - 31 Aug Ryanair direct
21 Aug - 27 Aug Ryanair direct
14 Aug - 28 Aug Ryanair direct
14 Aug - 24 Aug Ryanair direct
28 Aug - 10 Sep Ryanair direct
28 Aug - 04 Sep Ryanair direct
14 Aug - 21 Aug Ryanair direct
14 Aug - 31 Aug Ryanair direct
21 Aug - 10 Sep Ryanair direct
21 Aug - 04 Sep Ryanair direct
14 Aug - 27 Aug Ryanair direct
28 Aug - 03 Sep Ryanair direct
28 Aug - 11 Sep Ryanair direct
21 Aug - 11 Sep Ryanair direct
28 Aug - 17 Sep Ryanair direct
21 Aug - 03 Sep Ryanair direct

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