Cheap flights from Dublin to Lisbon from €29

In general, November is the cheapest month to fly from Dublin to Lisbon. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around €109. If you don’t want to visit Lisbon in November, then you should wait until January to fly from Dublin, when ticket prices are also cheap, with an average price of €112.

The cheapest day to depart from Dublin to Lisbon is on a Sunday. Travellers who choose to depart for Lisbon on a Sunday will often find tickets for as low as €408. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to Lisbon on Thursday is €829.

According to our data, the cheapest time of day to fly to Lisbon is at midday. momondo users have found flights departing from Dublin to Lisbon at midday for as low as €78. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are €891 on average. Flights to Lisbon from Dublin in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

You are more likely to see cheaper flights to Lisbon from Dublin when booking weeks ahead of your departure date. In general, you can expect to find flights to Lisbon for around €162 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Lisbon from Dublin for as low as €132 on momondo.

There are 2 cabin classes available to choose from on Dublin to Lisbon Humberto Delgado 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 Dublin to Lisbon Humberto Delgado

TAP AIR PORTUGAL, Aer Lingus and Ryanair are the top three most popular airlines that fly to Lisbon from Dublin according to our data. TAP AIR PORTUGAL is the first choice among our users, with 46% of people opting to fly with this airline when travelling to Lisbon. Keep in mind that there are 3 different airlines that fly to Lisbon on a routine basis, so you have a few additional options to choose from.

Historically, on average around 26% of flights between Dublin and Lisbon have experienced a delay on any given week. The average delay length over the past 12 months has been 116 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

Thursday is statistically the day of the week that experiences the fewest delays on this flight route. Wednesday 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 12% of their flights experiencing any sort of delay.

Paris (CDG) was the most common stop: 50% of momondo users choosing one-stop flights on this route connected there.

Flights via Amsterdam (AMS) offer the lowest average return price of €286.

Flights connecting via Madrid (MAD) have the shortest average one-way travel time: 5h 30m.

Madrid (MAD) has the shortest average stopover time for this route: 1h 33m.

The number of flights available between Dublin and Lisbon is 4 per day as of February 2026. The most frequent departure time is 11:00, with 53% of daily flights leaving at midday.

32 flights are operational weekly from Dublin to Lisbon as of February 2026. The most popular departure day for this route is Fri, with 31% of flights per week taking off on this day.