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Find cheap flights from Portugal to Ireland from €37

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portugal to Ireland departing on 5/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sat 25/5
Sat 1/6

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Good to know

Low season

July

High season

December

Cheapest flight

€37
Best time to beat the crowds but there is an average 36% increase in price.
Most popular time to fly and prices are also 28% lower on average.
Flight from Porto 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 to Ireland from 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 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 to Ireland with an airline and back to Portugal 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 to Ireland from Portugal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 3 airlines serving 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
Aer LingusOverall score based on 1349 reviews
7.0entertainment
6.6food
8.0crew
7.3boarding
7.1comfort
Airline reviews

I loved how they arrange boarding (starting with people seated in back and moving to the front). Flight crew was very polite and welcoming. Seating was ok, I felt like there was enough leg space however it is noticeable when the passenger in front of you sets their seat back.

10.0 ExcellentAnonymous, Apr 2024EWR - DUB
Read more about Aer Lingus reviews

I loved how they arrange boarding (starting with people seated in back and moving to the front). Flight crew was very polite and welcoming. Seating was ok, I felt like there was enough leg space however it is noticeable when the passenger in front of you sets their seat back.

Flight staff very friendly and helpful where possible. Late flight and travelling with young child, cabin lights remained on for the duration of the flight which was a little disappointing considering the time of the flight. Overall very happy to travel with Aer Lingus.

Nice to be on a flight that wasn't fully booked so there were only two of us in the three seat row.

The only problem was there are games on the entertaiment system. The guy behind me played poker the entire time and poking the back of my seat. I hope they remove these.

Delayed due to weather... fine. But then the board us. Rows 15 and back had to go down the stairs and back up the back stair entrance to the plane. No assistance offered. Then they inform us that we are delayed for paperwork for an hour. So why did we board? Then, about 45min later they inform us that it'll be another 60-90mins. Really? No wifi, no seat entertainment, no drink or snacks offered. And we were not allowed to deboard.

Great travel. Wonderful experience. Hope to do it again in the near future. God willing

Aer Lingus doesn't have plug ins for devices at each seat. They also did not give me a dairy free meal as requested and confirmed by staff. It was as if I had not requested anything. Otherwise, they were great!

There were a lot of empty rows. As a single passenger I should not have been seated with 2 others. The WiFi didn’t work. The Kosher meal was awful.

Both flights were delayed due to maintenance issues. Because they where late boarding all four of our bags where left behind on our last connecting flight.

Aer Lingus interior is not the cleanest. I've seen crumbs on the seat and wrappers on the floor when I boarded

Disastrous boarding. Entered air bridge only to descend stairs and enter a bus. Plane had insufficient storage, was old and chair recline was damaged. Air stewardess was sullen.

I wish to bring to your attention an incident involving a flight attendant that occurred on my recent journey. The attendant displayed a lack of courtesy, which was concerning. For instance, after accidentally spilling water on a passenger, the attendant dismissed the situation rather than offering a proper apology. Additionally, when I handed over my trash, the attendant reacted negatively because I placed a paper cup on the tray, she told me this doesn't go here and threw it back on my table. It was apparent that she was experiencing a challenging day, which unfortunately impacted the service provided to myself and other passengers. While I understand that everyone can have an off day, it is essential for customer-facing staff to seek support to manage personal stress without it affecting their professional responsibilities.

The flight crew was good, the flight itself was quick and comfortable

Boarding was late by 30 min due to a bus missing to take us to the plane... And then the flight was delayed by about 90 minutes, in a 60 min flight

Very agressive with bags both arrival and departures found minor damage to my luggage including my check bag being broken into nothing of value was in there so I do not believe anything was taken but definitely broken zipper into the outer pockets of suitcase

Everything was nearly perfect, and TAP staff were especially helpful when we missed our connecting flights and had to get on the next flight to Rome. The only aspect that could have been better was boarding: it was somewhat disorganized, which created a bit of stress. But in the end, everyone got on the plane, so the less-then-perfect boarding process did not take away from the overall excellent experience.

TAP Air makes you take a bus on arrival or departure, making it difficult for passengers to make connections.

Two of three flight attendants were not super kind as I would expect. The very kind young lady in my section was wonderful but then lady and man up front were not. Sorry but it makes a difference !

Great staff who were ready working with smile 6 in the morning on New Year’s Day. Although security checkpoint was way too busy, the airline staff were understanding and waited few minutes after boarding. We took off not only exactly on time, but arrived 20 minutes early. Two thumbs up!!!

I needed to add "Special Request" meal for myself and my trveling companion,and I ended up having to call their Customer Service. It took a while to get through but eventually I connected with a very proffessional and nice representative who took my request. In the middle of the conversation we were disconnected , as I was trying to all back, the TAP representative actually called me back and confirmed the special request for meals....he called me back from Portugal ! I was absolutely amazed,because that does not happen here in the USA. Perhaps some of the other airlines can learn from TAP's Customer Service. TAP's website at times can be difficult ,such as adding my TSA number. Ended up having it added at the TAP desk at the airport.

We missed the flight due to very slow security control and lack of last call announcement. We only found out at the gate that the gate is closed. Altogether 14 or 15 people missed the flight FR4500 from Cologne to Dublin.

Everything went according to plan. Check in, boarding etc all were very efficient.

Good flight. Take off a little late but make up the time

O voo atrasou um bom bocado A tripulação não era comunicativa,não fez vendas... Não abordava os passageiros... A 1°vez que me acontece tal coisa 🤷‍♀️

Late again rude staff at gate bullying passengers made us stand in the cold 3degrees for 40 mins before they let us board

The flight boarded and departed Venice on time (more or less), the cabin crew were super friendly and efficient, the flight crew kept us informed of progress, and the flight arrived early in Dublin. All in all, this flight was as close to perfect as is possible to achieve. Well done, Ryanair. The fact that Ryanair aircraft arrive and depart from gates that are in the back of beyond in Dublin's Terminal 1 is a bummer - in terms of the length of the walk need on both ends of a return flight. But I suspect that this is not Ryanair's fault

I didn't like. The seats and the floor were very dirty and it is not the first time

I wouldn't like to fly with them anymore, I don't like their service, you can hardly take carry-on luggage because they charge you for everything, you can't ask for a glass of water, and the flight attendant tells you that they don't have any, that you have to Paying 3 euros for a bottle of water horrible, I don't recommend it, and they don't have anything low cost, because the plane ticket may not be expensive but what they charge you later for the rest, the flight becomes more expensive, it's the only airline that I don't like it so far, and I traveled a lot.

On time but no water , milk or refreshments of any kind on board. Which is poor, especially with children and elderly on board. Toilets filthy,

The steward acted impolitely to one of the passengers. Rayanair has to solve the issue of accompanied luggage. It is not logical or fair that someone sitting in the front seats(and he paid for that seat) to store his case in the backseat because a passenger in the backseat stored his luggage in the front !!

Book cheap flights from Portugal to Ireland

Recent return flight deals

9/5Thu
directRyanair
2h 55mFAO-DUB
12/5Sun
directRyanair
2h 50mDUB-FAO
€53
11/10Fri
directTAP AIR PORTUGAL
2h 50mLIS-DUB
19/10Sat
directTAP AIR PORTUGAL
2h 50mDUB-LIS
€102
29/8Thu
directRyanair
2h 40mLIS-DUB
1/9Sun
directRyanair
2h 50mDUB-LIS
€134
6/10Sun
1 stopTAP AIR PORTUGAL
15h 10mOPO-DUB
8/10Tue
1 stopTAP AIR PORTUGAL
15h 05mDUB-OPO
€147
8/5Wed
1 stopVueling
11h 10mLIS-DUB
10/5Fri
2 stopsVueling
23h 25mDUB-LIS
€155
8/5Wed
1 stopVueling
11h 10mLIS-DUB
10/5Fri
1 stopVueling
10h 30mDUB-LIS
€164
24/5Fri
1 stopSWISS
27h 30mOPO-DUB
31/5Fri
1 stopSWISS
17h 50mDUB-OPO
€165
7/5Tue
1 stopSWISS
18h 00mLIS-DUB
14/5Tue
2 stopsSWISS
19h 00mDUB-LIS
€194
31/8Sat
directAer Lingus
2h 44mLIS-DUB
10/9Tue
directAer Lingus
2h 55mDUB-LIS
€200
3/9Tue
directAer Lingus
2h 44mLIS-DUB
9/9Mon
directAer Lingus
3h 00mDUB-LIS
€201

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Recent one-way flight deals

5/5Sun
directRyanair
2h 25mOPO-DUB
€37
8/5Wed
1 stopVueling
11h 10mLIS-DUB
€40
7/5Tue
directAer Lingus
2h 44mLIS-DUB
€56
8/5Wed
directAer Lingus
2h 44mLIS-DUB
€58
4/5Sat
directTAP AIR PORTUGAL
2h 50mLIS-DUB
€59
3/7Wed
1 stop
25h 25mFAO-DUB
€60
2/5Thu
directTAP AIR PORTUGAL
2h 55mLIS-DUB
€61
1/5Wed
1 stop
10h 35mLIS-DUB
€64
6/6Thu
1 stopKLM
12h 00mLIS-DUB
€97
16/5Thu
1 stopKLM
7h 35mLIS-DUB
€134

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Last minute flights to Ireland

Last minute flight, train and bus deals

25/4Thu
directRyanair
2h 55mFAO-DUB
28/4Sun
directRyanair
2h 50mDUB-FAO
€132
25/4Thu
multi-stop
11h 20mOPO-DUB
1/5Wed
multi-stop
24h 30mDUB-OPO
€198
25/4Thu
direct
2h 55mFAO-DUB
28/4Sun
multi-stop
14h 55mDUB-FAO
€237
25/4Thu
multi-stop
11h 20mOPO-DUB
1/5Wed
multi-stop
25h 20mDUB-OPO
€244
25/4Thu
multi-stop
45h 00mLIS-DUB
28/4Sun
direct
2h 50mDUB-LIS
€252
25/4Thu
multi-stop
11h 55mFAO-DUB
28/4Sun
multi-stop
5h 40mDUB-FAO
€261
25/4Thu
multi-stop
45h 00mLIS-DUB
28/4Sun
multi-stop
11h 20mDUB-LIS
€263
25/4Thu
multi-stop
31h 45mFAO-DUB
28/4Sun
multi-stop
14h 55mDUB-FAO
€282
25/4Thu
multi-stopSWISS
5h 45mOPO-DUB
2/5Thu
multi-stopSWISS
23h 45mDUB-OPO
€298
25/4Thu
multi-stopSWISS
34h 25mOPO-DUB
28/4Sun
multi-stopSWISS
22h 25mDUB-OPO
€411

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Flights to Ireland

Return flight deals:

Ireland - Portugal

Cabin classes:

€95