Cheap flights from Lisbon to Ireland from €59

The month of November is another great option to travel to Ireland, with average flight prices from Lisbon averaging around €100.

The cheapest day to depart on your flight to Ireland is on a Friday when prices can be found for as low as €125. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around €264. These prices are subject to change though, so be sure to set up a Price Alert for flights to Ireland.

In the afternoon is the cheapest time of day to fly from Lisbon to Ireland when you can find flight prices for as low as €155. Flying to Ireland in the afternoon is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Ireland is in the morning when prices are around €175.

Fly from Lisbon Humberto Delgado to Dublin for the best Lisbon Humberto Delgado - Ireland flight prices

You are more likely to see cheaper flights to Ireland from Lisbon when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €143 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Lisbon for as low as €103 on momondo.

There is only 1 cabin class available to choose from on Lisbon to Ireland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Historically, on average around 29% of flights between Lisbon and Ireland have experienced a delay on any given week. The average delay length over the past 12 months has been 112 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, Aer Lingus have had the fewest delays on this route over the last 12 months, with about 23% of their flights experiencing any sort of delay.

The number of flights available between Lisbon and Ireland is 2 per day as of October 2026. The most frequent departure time is 22:00, with 44% of daily flights leaving at midday.

As of October 2026, 17 flights take off from Lisbon and land in Ireland each week. The most common flight departure day for this route is Tue, with 41% of weekly flights taking off on this day.