Cheapest return LIS–DUB flights, May

AirHint found the following cheapest return flights from Lisbon (LIS) to Dublin (DUB) in May 2026 (see full year).

Return flights

19 May - 22 Jun Ryanair
20 May - 29 May Ryanair
20 May - 25 May Ryanair
26 May - 02 Jun Ryanair
26 May - 08 Jun Ryanair
22 May - 27 May Aer Lingus
26 May - 01 Jun Ryanair
22 May - 03 Jun Ryanair direct
27 May - 16 Jun Ryanair direct
22 May - 01 Jun Aer Lingus
22 May - 09 Jun Ryanair direct
29 May - 16 Jun Ryanair direct
21 May - 27 May Ryanair
29 May - 03 Jun Ryanair direct
27 May - 28 May Aer Lingus
26 May - 26 May Ryanair
26 May - 27 May Ryanair
21 May - 26 May Ryanair
27 May - 31 May Aer Lingus
26 May - 28 May Aer Lingus

Also check the deals for one-way flights from Lisbon to Dublin in May.

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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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