Cheap flights from Lisbon to Dublin from $45

In general, January is the cheapest month to fly from Lisbon to Dublin. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $85. If you’re not able to fly to Dublin in January, then November is your next best option. Flight prices from Lisbon to Dublin during November average around $102.

The cheapest day to depart from Lisbon to Dublin is on a Wednesday. Travelers who choose to depart for Dublin on a Wednesday will often find tickets for as low as $169. Flights from Lisbon to Dublin on a Monday will generally be more expensive and average around $352. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

In the afternoon is the cheapest time of day to fly from Lisbon to Dublin when you can find flight prices for as low as $142. Flying to Dublin in the afternoon is an ideal time because this is during off-peak travel hours. Flights at noon are often more expensive with an average ticket price of $309.

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

You are more likely to see cheaper flights to Dublin from Lisbon when booking weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around $148 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dublin from Lisbon for as low as $114 on momondo.

There are 3 cabin classes available to choose from on Lisbon Humberto Delgado to Dublin flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Ryanair is the most popular carrier operating from Lisbon Humberto Delgado to Dublin

Ryanair, TAP AIR PORTUGAL and Aer Lingus are the top three most popular airlines that fly to Dublin from Lisbon according to our data. Ryanair is the first choice among our users, with 69% of people opting to fly with this airline when traveling to Dublin. Keep in mind that there are 3 different airlines that fly to Dublin on a routine basis, so you have a few additional options to choose from.

Historically, on average around 33% of flights between Lisbon and Dublin have experienced a delay on any given week. The average delay length over the past 12 months has been 117 minutes.

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

Wednesday is statistically the day of the week which experiences the fewest number of 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 least number of delays on this route over the last 12 months; with about 24% of their flights experiencing any sort of delay.

As of March 2026, there are 5 flights per day flying from Lisbon to Dublin. The most common time of day flights depart is 8:00PM, with 47% of flights taking off at noon.

35 flights are operational weekly from Lisbon to Dublin as of March 2026. The most popular departure day for this route is Sun, with 26% of flights per week taking off on this day.