For the cheapest flights to Dublin book 9 days before departure.
The most popular airlines on the route Lisbon - Dublin: Ryanair (FR), Aer Lingus (EI), Swiss (LX).
The cheapest flights are on the route Portela (LIS) - Dublin Airport (DUB).
Direct flights last about 2h 45min.
Direct flights are available 7 days a week.
Direct flights: Aer Lingus (EI), Ryanair (FR).