$24 Find Cheap Flights from Ireland to Portugal - Compare and Save

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KAYAK's insights & trends for flights to Portugal

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

What is the cheapest flight to Portugal?

The cheapest ticket to Portugal from Ireland found in the last 5 days was to Faro, at $63 round-trip. The most popular route is Dublin (DUB) to Faro (FAO) and the cheapest round-trip airline ticket found on this route in the last 5 days was $63.

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

The cheapest month for flights from Ireland to Portugal is January, when tickets cost $70 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $154 and $147 respectively.

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

The cheapest time of day to fly to Portugal is generally in the morning, when round-trip flights cost $198 on average. Morning departures are around 11% cheaper than evening flights, on average. The most expensive time of day to fly to Portugal is generally in the evening, which is peak travel time and where the average cost of a ticket is $224.

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

To get a below average price on the flight from Ireland to Portugal, you should book around 4 weeks before departure, which saves you about 40% 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 Portugal?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Portugal is Faro Airport (FAO), with an average flight price of $95.

Good to know

Low season

January

Cheapest flight

$24
Best time to beat the crowds with an average 45% drop in price.
Most popular time to fly with an average 16% increase in price.
Flight from Dublin to Porto

FAQs for booking flights from Ireland to Portugal

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

    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 Ireland to Portugal.

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

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

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Ireland to Portugal 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 Ireland to Portugal?

    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 Ireland to Portugal 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 Portugal?

    Based on KAYAK data, the cheapest day to fly to Portugal is Wednesday where round-trip tickets can be as cheap as $163. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $244 on average.

Reviews of the top 3 airlines serving from Ireland to Portugal

 
Need help choosing which airline to fly with from Ireland to Portugal? 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.
7.3
Aer LingusOverall score based on 1747 reviews
6.7Food
7.0Entertainment
7.2Comfort
7.5Boarding
8.1Crew
Airline reviews

I loved both of my flights to Ireland and back to Boston. The only negative was it took over an hour for the baggage to be delivered.

10.0 ExcellentAnonymous, Sep 2026
Read more Aer Lingus reviews

I loved both of my flights to Ireland and back to Boston. The only negative was it took over an hour for the baggage to be delivered.

The boarding time for this flight was ridiculous, longest in all my time flying. There was a problem with the original plane so it was switched at the last minute. Not a good substitution. We were delayed in departing. The bathrooms for economy were not adequate. The crew were pleasant but not present in the economy section, in an ~ 8hr flight only twice did they come through offering water, easy to get very dehydrated. I had to go and ask every hour for more water. The seats were cramped, and I have no idea what they did to the coffee but it was undrinkable. The food, was disgusting, utterly inedible, I am stunned by the lack of care and quality with the inflight service, very disappointing, I had expected better from Aer Lingus.

Excellent cabin crew. They helped a number of passengers with mobility challenges and a mother with a 3 year old and an infant. Better than most other airlines by far. Well done Eduardo!

Good, I slept the entire flight so I cannot add many inflight details

Internet didn’t work more than 30 seconds at a time. Stared at my seat for most of the flight.

We had a connection flight in Toronto and the checked bags didn’t arrive to the baggage claim area 1.5 hours later- this caused us to miss our flight because of the delay. I called Aer Lingus to see if they could help, but since I booked it through a third party on Kayak, they said they couldn’t help. Are you able to help with this? We needed up getting a hotel and renting a car for the solution.

The embarkation at Dublin was a kin to a Ryanair approach, in other words a circuitous and cheep access

Excellent flight and crew. Boarding at Dublin Airport was a very difficult trying to find the right gate.

Delightful flight, ahead of time with a super crew, thanks

I had a great experience. I wasn’t sure what to expect but the crew helped me check my bags and made sure I got in the correct line to board. It was a bit of a walk to my gate so arrive early. I would recommend securing a flight that includes checking in your bag if you remotely think your baggage is over 10kg/22lbs. Be safe and upgrade unless you are carrying a backpack or weekend type baggage.

TAP canceled connection and we had to wait 15 hours for another flight to Milan. There were plenty of. Seats on earlier but because we were Excellence Class the would not let us downgrade which we were willing to. Don’t understand their logic? Plenty of seats but we couldn’t / they wouldn’t make the change.

Food is poor. Drinks in dixie cups, only white/red wine in Premium Prime despite business class food-which even that is a joke. Second “meal” on a 12 hour flight is a bagged sandwich in a cardboard box, which on premium airlines is a snack served BETWEEN meals. The premium economy product has some good parts but is obviously a cheap way of somewhat upgrading economy without actually putting any money into it. Lisbon airport is overcrowded and almost 3rd world as an airport. Crew is efficient but militaristic-crrtianly not “warm”. Entire experience feels like an intercontinental budget airline.

Excellent experience - from boarding through the super smooth flight The food was mediocre and the app could be better but overall great experience

No onboard entertainment or food, but that was okay because it was a short flight. Pretty much everyone just slept on the plane. The plane was comfortable enough.

This was one of the worst flights I have ever taken in my entire life. First of all, I traveled Economy, but the seats were TINY and cramped. Not just for me; everyone around me was complaining of the same thing and said they could not get comfortable. Then there was the issue of the heat. For whatever reason the heat on the plane must have been turned to FULL BLAST, because even at 30,000 feet, it was SWEALTERING. Everyone was drench in sweat. Then, they were SO STINGY with the amount of drink they would give you. If you asked for water, it was in a tiny, paper cup (think bathroom cup) and they only filled it 3/4s of the way as if the cost came right out of the pockets of the air stewards. Everything was a money grab, you could tell! You had to pay for the WiFi, which was garbage slow, and the onboard entertainment was limited and stale. If I EVER fly TAP again, it will not be Economy class. What a disaster!

They blocked me from checking in online and they charged me lots of money

Everything was good with Tap Air Portugal. It was Logan Airport that was a problem. The fuel system was down and delayed my 10:40 boarding. I wasn't able to board my flight until 2:00 am...after that my flights were great.

Seats had no charging ports. Our plane was rerouted to Boston and we were landed on the tarmac with no food or water for 3 hours (illegal). We then waited in the airport for 3 hours while staff had no information regarding where our bags were or when we were going to get them.

Very poor communications during flight. Our flight was diverted with no communication. We waited for hours in the terminal for word on how we would get to Newark No chargers on the plane Won’t be flying them again

An hour late. Plus literally everything was unavaiable for food and beverage service. Will never fly again. Ever.

Smooth journey made good time. The aircraft was littered and did not look very presentable.

On time departure; arrived early into Faro. Air Malta operating flight, crew friendly and efficient.

I didn't know that all connecting flights require online check-in two hours in advance, so I was fined 55 euros. This is a lesson learned.

There isn’t any entertainment. The food and drink was available for a price. I didn’t buy any.

It would be nice to have power to charge phone.

They boarded us but somehow did not manage to record us boarding, so rather than check if we were onboard they removed our bags from the aircraft. I got a call from Ryanair staff in Dublin when I landed in Madiera asking me where I was!!! When I said I was in Madiera I was told what had happened. Our bags were to be sent to Madiera the next day via Manchester, they didn’t arrive. They are now due to arrive two days before we leave. I don’t see myself using Ryanair again unless I am forced to and even then I may just refuse.

The flight arrived within 15 minutes of schedule. We hate the cattle-like boarding process seen often in Europe. After your boarding pass is checked by the airline staff, you wait standing up in an area with no seating for several minutes.

I haven't had a ok flight with Ryanair in so long!

Ryanair is the worst airline in Europe and easily one of the worst in the planet

Usual RyanAir flight but disembarking was poor, no rear steps. The Faro Airport required lots of up step and down steps, no elevator Getting through passport control took 50 minutes in the EU line

More options for your flight to Portugal

Complete your trip to Portugal with a hotel stay or car rental