€31 Find Cheap Flights from Portugal to Ireland

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 8/4. 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.
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Good to know

Low season

July

High season

April

Cheapest flight

€31
Best time to beat the crowds but there is an average 18% increase in price.
Most popular time to fly (31% more expensive 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 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.

See more FAQs

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.
7.1
TAP AIR PORTUGALOverall score based on 1847 reviews
7.0Boarding
6.3Entertainment
7.1Comfort
7.8Crew
6.2Food
Airline reviews

Flight was packed. This was a very uncomfortable experience. Boarding process could be explained better. Despite recommending a window seat when travelling with a pet in the cabin, the seat in front of me had less space than the center and aisle seats. For Premium Economy, the seats were crammed with minimal legroom. I hate to think what Regular Economy was like. The cabin crew missed me at first when handing out meals. When my meal eventually came, there were no utensils.

4.0 OkayAnonymous, Feb 2025BOS - LIS
Read more TAP AIR PORTUGAL reviews

Flight was packed. This was a very uncomfortable experience. Boarding process could be explained better. Despite recommending a window seat when travelling with a pet in the cabin, the seat in front of me had less space than the center and aisle seats. For Premium Economy, the seats were crammed with minimal legroom. I hate to think what Regular Economy was like. The cabin crew missed me at first when handing out meals. When my meal eventually came, there were no utensils.

Boarding went fast. Lisbon's gates are too small for the flights they serve.

Baggage check in was very slow. No sign that the check in was TAP until the station opened. Understaffed and overworked team.

Great pilot, textbook landing in madeira. Everything else, from booking to checkin, plane quality, seat amenities, crew engagement, and overall experience were significantly below standard. I WOULD NOT FLY TAP IF THERE IS ANY OTHER OPTION.

Worst: long walk to baggage claim Best: left on time

Got in on time. Food was the worst ever. Comfort was terrible. Check in was incredibly bad.

The flight schedules are better than some airlines. Their website is terrible, it doesn’t store any information so every time you fly you have to re-enter the data. The flight was late taking off but we still got to our destination on time.

Flight delayed by >1 hour. Long boarding involving riding a shuttle to the plane.

When I tried to enter my identity details, your app told me information was missing but did not highlight the missing data. This was frustrating. Also, there was an unexplained delay of about 2 hours in taking off. This was also frustrating. Otherwise the experience was good.

The flight was delayed without any type of notice. After passing through the gate, people were lined up at the passages boarding bridge standing for about half hour with no clue when they can board after ‘boarding’. No explanation or indication of the new departure time. All you can do is standing up and waiting.

Very polite and helpful staff. Jet blue…ok, but not as helpful!..

Seat was very uncomfortable. The worst in all of my travels. It sagged in the middle, worse than anything any airline can offer. Not flying aer lingus again.

This flight was delayed and caused me to miss my connecting flight from New York to Boston. I had to rent a car and drive myself home to avoid waiting another 5 hours in the airport.

My Aer Lingus flight (booking ref # 2SU4LF) was the worst travel experience I have ever dealt with. My flight from Paris to Dublin was delayed by over 2 hours which caused me to miss my connecting flight back to the US. I was not able to be rebooked on a new flight for another 3 days. When I finally made it on my rescheduled flight, it was delayed AGAIN, causing me to miss my connecting flight from New York to Boston. At this point I decided to just rent a car since the next flight I would have been able to get in wasn’t for another 5 hours. It was a complete nightmare experience and I will never fly Aer Lingus again. I have requested a refund from the booking company I placed my order with.

They couldn't do through check-in for us. They took 2 hours to issue just one leg of the boarding pass. They had no idea to handle the case of passengers who travels to USA via Dublin airport. we had tough time time Dublin airport as boarding pass for the US flight was not pre-issued. Hope Aer Lingus will learn to handle such cases which they couldn't learn in in the past 50 years of the service.

Really lovely trip and flight. The flight staff were so accommodating and warm throughout!

Very sad, couldn't stop crying. Was an hour delay in Ireland and when we got to Canada the flight was boarded and couldn't get on. Was the last flight of the day. Now in a hotel waiting on a stand by.I have to got o work, so I'll go first available while my son stays in the hotel til one's available

Was not aware that Aer Lingus was like the cut-rate services in the states, with no food or beverage (other then 3.50 Euro coffee) and no screens for entertainment. Was a great flight, but not much in the way of services.

Both flights late. Almost missed connecting flight and flight staff not willing to help expedite us off the plane.

during a very rough flight, I was forced to sit in a last row seat, fell asleep, and was forced to return to my assigned seat after the turbulence. The stewardess then used that seat to sleep.

Book cheap flights from Portugal to Ireland

Recent return flight deals

1/4Tue
directRyanair
2h 25mOPO-DUB
2/4Wed
directRyanair
2h 25mDUB-OPO
€60
3/4Thu
directRyanair
2h 45mLIS-DUB
6/4Sun
directRyanair
2h 50mDUB-LIS
€60
3/4Thu
directAer Lingus
2h 50mLIS-DUB
7/4Mon
directAer Lingus
3h 00mDUB-LIS
€96
3/4Thu
directAer Lingus
2h 50mLIS-DUB
6/4Sun
directAer Lingus
2h 50mDUB-LIS
€97
1/4Tue
direct
2h 25mOPO-DUB
2/4Wed
1 stop
8h 40mDUB-OPO
€107
4/4Fri
direct
2h 44mLIS-DUB
6/4Sun
direct
2h 55mDUB-LIS
€107
7/3Fri
directTAP AIR PORTUGAL
2h 50mLIS-DUB
17/3Mon
directTAP AIR PORTUGAL
2h 50mDUB-LIS
€111
21/3Fri
directTAP AIR PORTUGAL
2h 55mLIS-DUB
23/3Sun
directTAP AIR PORTUGAL
2h 55mDUB-LIS
€114
4/4Fri
1 stopKLM
6h 05mOPO-DUB
7/4Mon
1 stopKLM
11h 05mDUB-OPO
€153
4/4Fri
1 stopKLM
11h 45mOPO-DUB
9/4Wed
1 stopKLM
5h 55mDUB-OPO
€169

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Recent one-way flight deals

8/4Tue
directRyanair
2h 25mOPO-DUB
€31
31/3Mon
directRyanair
3h 00mFAO-DUB
€31
10/5Sat
1 stopVueling
9h 50mOPO-DUB
€54
20/5Tue
1 stopVueling
11h 05mLIS-DUB
€54
14/5Wed
directAer Lingus
2h 44mLIS-DUB
€55
18/4Fri
directAer Lingus
2h 44mLIS-DUB
€56
1/4Tue
1 stop
8h 50mOPO-DUB
€67
7/3Fri
directTAP AIR PORTUGAL
2h 55mLIS-DUB
€69
10/5Sat
1 stop
9h 30mOPO-DUB
€69
30/5Fri
1 stopTAP AIR PORTUGAL
6h 10mOPO-DUB
€73

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Last minute flights to Ireland

Last minute flight, train and bus deals

26/2Wed
multi-stopKLM
20h 30mOPO-DUB
2/3Sun
multi-stopKLM
13h 30mDUB-OPO
€186
26/2Wed
multi-stop
38h 40mOPO-DUB
2/3Sun
multi-stop
14h 35mDUB-OPO
€199
26/2Wed
multi-stop
36h 20mOPO-DUB
2/3Sun
multi-stop
14h 35mDUB-OPO
€209
26/2Wed
multi-stopSWISS
23h 55mFAO-DUB
1/3Sat
multi-stopSWISS
13h 15mDUB-FAO
€218
25/2Tue
multi-stopSWISS
20h 10mFAO-DUB
1/3Sat
multi-stopSWISS
13h 15mDUB-FAO
€240
25/2Tue
multi-stopKLM
15h 55mOPO-DUB
2/3Sun
multi-stopKLM
6h 35mDUB-OPO
€264
26/2Wed
directRyanair
3h 05mFAO-DUB
2/3Sun
directRyanair
2h 55mDUB-FAO
€288
25/2Tue
multi-stopRyanair
11h 10mFAO-DUB
1/3Sat
directRyanair
2h 55mDUB-FAO
€295
24/2Mon
multi-stopTAP AIR PORTUGAL
4h 55mFAO-DUB
28/2Fri
multi-stopTAP AIR PORTUGAL
19h 25mDUB-FAO
€510
24/2Mon
multi-stopTAP AIR PORTUGAL
10h 05mFAO-DUB
1/3Sat
multi-stopTAP AIR PORTUGAL
6h 55mDUB-FAO
€536

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Everything you need to know for your flight to Ireland

Cabin class types available on flights to Ireland

Cabin classes available on flights to Ireland. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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