Cheap flights from Dublin to Lisbon from $43

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 $131. If you are unable to visit Lisbon during the month of November, then departing from Dublin during the month January is also very affordable. Most momondo users find prices during this month for around $132.

Our data shows that Wednesday is the least expensive day to fly to Lisbon. Tickets to fly out on this day can be as low as $185. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Dublin to Lisbon for around $306.

The cheapest time of day to fly to Lisbon is in the evening when flights can be purchased for as low as $213. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $351 on average. Flights to Lisbon from Dublin at noon are generally more expensive because this time of day is more convenient for travelers’ 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 $193 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Lisbon from Dublin for as low as $157 on momondo.

There are 3 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, TAP AIR PORTUGAL, and KLM are the most popular carriers operating from Dublin to Lisbon Humberto Delgado

Ryanair, Aer Lingus and TAP AIR PORTUGAL are the top three most popular airlines that fly to Lisbon from Dublin according to our data. Ryanair is the first choice among our users, with 62% of people opting to fly with this airline when traveling 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 27% 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 115 minutes.

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

Thursday is statistically the day of the week which experiences the fewest number of 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 least number of delays on this route over the last 12 months; with about 13% of their flights experiencing any sort of delay.

The number of flights available between Dublin and Lisbon is 4 per day as of March 2026. The most frequent departure time is 4:00AM, with 43% of daily flights leaving at noon.

As of March 2026, there are 28 flights per week flying from Dublin to Lisbon. The most common day of the week flights depart is Mon, with 25% of flights taking off on this day.