Cheap flights from Dublin to Porto from £17

The month of October is, on average, the cheapest month to fly to Porto from Dublin, with most prices found around £121. If you are unable to visit Porto during the month of October, then departing from Dublin during the month February is also very affordable. Most momondo users find prices during this month for around £122.

According to our data, Monday is the cheapest day to fly to Porto from Dublin. The lowest ticket price found for a Monday departure recently was £91. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Wednesday because tickets tend to average around £181. These prices are subject to change though, so be sure to set up a Price Alert for flights to Porto.

Our data shows that the cheapest Dublin to Porto flights are usually those with departure times in the morning. Our users have found flights to Porto in the morning for as low as £122. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £172 on average. Flights to Porto from Dublin in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

Fly from Dublin to Porto for the best Dublin - Porto flight prices

You are more likely to see cheaper flights to Porto from Dublin when booking weeks ahead of your departure date. In general, you can expect to find flights to Porto 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 Porto from Dublin for as low as £111 on momondo.

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

No. A direct flight is the cheapest option for a flight between Dublin to Porto.

As of October 2026, prices for Dublin to Porto flights are approximately 18% cheaper when compared to flights at the same time last year.

Historically, on average around 32% of flights between Dublin and Porto have experienced a delay on any given week. The average delay length over the past 12 months has been 115 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.

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, Ryanair have had the fewest delays on this route over the last 12 months, with about 32% of their flights experiencing any sort of delay.