£13 Find Cheap Flights from Portugal to Ireland – Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 34% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals
Booking Insights
Flight Deals
Booking Insights

KAYAK's insights & trends for flights to Ireland

Get data-powered insights and trends into flights to Ireland to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Ireland?

The cheapest ticket to Ireland from Portugal found in the last 5 days was to Dublin, at £45 return. The most popular route is Faro (FAO) to Dublin (DUB) and the cheapest return ticket found on this route in the last 5 days was £45.

How much is a flight to Ireland?

A flight to Ireland costs £182 on average. The cheapest price found on KAYAK in the last 2 weeks was £29 for the route Faro (FAO) to Dublin (DUB). The most popular routes on KAYAK are Faro to Dublin which costs £479 on average, and Lisbon to Dublin, which costs £124 on average.

See prices from:

What is the cheapest month to fly from Portugal to Ireland?

The cheapest month for flights from Portugal to Ireland is December, when tickets cost £60 (return) on average. On the other hand, the most expensive months are August and October, when the average cost of round-trip tickets is £133 and £120 respectively.

What is the cheapest time of day to fly to Ireland?

The cheapest time of day to fly to Ireland is generally at night, when retur flights cost £111 on average. Morning departures are around 26% cheaper than evening flights, on average. The most expensive time of day to fly to Ireland is generally in the evening, which is peak travel time and where the average cost of a ticket is £169.

How far in advance should I book a flight from Portugal to Ireland?

To get a below-average price on a flight from Portugal to Ireland, you should book around 3 weeks before departure, which saves you about 49% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Which is the cheapest airport to fly into in Ireland?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Ireland is Shannon Airport (SNN), with an average flight price of £38.

Good to know - Cheap tickets from Portugal to Ireland

Low season

July

Cheapest flight

£13
Best time to beat the crowds but there is an average 54% increase in price.
Most popular time to fly and prices are also 27% lower on average.
Flight from Faro to Dublin

FAQs for booking flights from Portugal to Ireland

  • How does KAYAK find such low prices on flights from Portugal to Ireland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portugal to Ireland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portugal to Ireland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Portugal to Ireland is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portugal to Ireland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Portugal to Ireland with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portugal to Ireland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Portugal to Ireland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to Ireland?

    Based on KAYAK data, the cheapest day to fly to Ireland is Sunday when return tickets can be as cheap as £111. On the other hand, the most expensive day to fly is Wednesday, when return prices are £213 on average.

Reviews of the top airlines flying from Portugal to Ireland

 
Need help choosing which airline to fly with from Portugal to Ireland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
TAP AIR PORTUGALOverall score based on 2385 reviews
6.3Food
7.2Comfort
7.8Crew
6.4Entertainment
7.1Boarding
Airline reviews

Boarding slow and chaotic. Food was terrible. Flight attendants were nice. Sears were comfortable.

8.0 ExcellentJulie, Oct 2026
Read more TAP AIR PORTUGAL reviews

Boarding slow and chaotic. Food was terrible. Flight attendants were nice. Sears were comfortable.

food was terrible on the plane, bring your own food, its not worth eating.

I feel like the boarding process could be a little better. But the staff and everyone does a really great job.

Flight was good. Would be great if we had free WiFi

Flight was late, and not sure why. The business class lounge in Porto is not proprietary to TAP, and is really substandard, almost as bad as "The Lounge" in Boston. It was a D, which is better than the F experience in Bostonm where we left "The Lounge" for a better experience in the terminal. It had better food (an extremely low bar), ok beverages, and wasn't as crowded as the Boston one, but no restrooms. To use one, you had to leave and go downstairs. There's no down escalator, and the elevator might be able to crowd 4 people. Otherwise, you're carying your bags down the stairs. I hope the Lisbon club is better, but for TAP to provide this in the 2nd largest city in the home country is disappointing. They put out an announcement to proceed immediately to the gate, but there was no plane and few seats. from the lounge, 8 people with bags waited in line for the single tiny elevator. After almost an hour of standing, we finally boarded. TAP, at least on this plane, doesn't offer a welcome drink to business class passengers. Having said that, the crew was very friendly and accomodating. We landed about an hour late and then were told we were going to be on the runway for at least a half hour because no gate was available. So, bottom line, D- for pre boarding, A for flight attendents, B + for business class food, and Incomplete for post landing.

Special meal AVML was terrible Move selections were mediocre No Wi-Fi offered

On time. Good meal. Overhead cabin lights inop in entire cabin. Seat recliner did not work.

Excellence’s Class booked and we had to wait 15 Hours when we could downgrade to an earlier flight. The logic makes No sense?

Flight was ready to depart on time. We had a 20-minute ATC hold. We still landed on time. The landing seemed fast and rough.

Flight was delayed more than 1.5 hours. Essentially no communication with passengers regarding how long the delay would last or any updates as to the delay.

Huge wait to board after waiting for 2.5 hours delayed flight

Had no disruptions or delays. Did not order any food.

I liked almost everything (e.g. ease of booking, price, punctuality, efficiency, friendliness, courtesy). A slam landing in Dublin airport took some of the gloss off it, though. Being able to paste here the text of the review of the same flight that I just wrote for Ryanair would make me feel better about Kayak too.

Take off was great but landing is always with a bump.

Staff were very professional. Much better than the outgoing flight from Dublin. Seat cushions were practically non existent. Making for a very uncomfortable flight.

They were extremely unprofessional and unhelpful at check in. They did not understand laws related to Spanish residents flying with family It was very discriminatory the way we were treated.

It's not the staff's fault. The cabin crew do their best but the setup in Stansted Airport by Ryanair is poor. The herding of people like cattle is unacceptable before boarding and is something that's in every airport but only in Stansted have I seen the queueing of passengers outside the plane on the tarmac and the crew only turning up with maybe 5 minutes to depart. This is a resource issue . Yes prices are good but seemingly comes with a price of poor treatment of customers. I'll pay more next time

Flight was fine, crew were good, cabin director spoke far too much; disembarking at Dublin Airport and entry into the terminal building was just dreadful, like entering the back door of a neglected factory building. What an awful impression it must give to first time visitors to Ireland.

all fine - did not have food - there was no entertainment

Worst experience ever. First time and last time with Ryanair. I'm not a cow.

More options for your flight to Ireland

Complete your trip to Ireland with a hotel stay or car hire