Cheap flights from Dublin to Portugal from C$ 81

If you’re not able to fly to Portugal in January, then November is your next best option. Flight prices from Dublin to Portugal during November average around C$ 210.

The cheapest day to depart from Dublin to Portugal is on a Monday. Travellers who choose to depart for Portugal on a Monday will often find tickets for as low as C$ 240. Flights from Dublin to Portugal on a Thursday will generally be more expensive and average around C$ 568. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

The cheapest time of day to fly to Portugal is in the evening when flights can be purchased for as low as C$ 238. Try not to purchase tickets in the morning because they tend to be around C$ 331. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Portugal from Dublin when booking weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around C$ 265 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from Dublin for as low as C$ 222 on momondo.

There are 2 cabin classes available to choose from on Dublin to Portugal 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 20% of flights between Dublin and Portugal have experienced a delay on any given week. The average delay length over the past 12 months has been 110 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.

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

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

The number of flights available between Dublin and Portugal is 4 per day as of August 2026. The most frequent departure time is 6:00p.m., with 48% of daily flights leaving at noon.

The number of flights available between Dublin and Portugal is 34 per week as of August 2026. The most frequent departure day is Sun, with 26% of weekly flights leaving on this day.