€31 Find Cheap Flights from Portugal to Ireland

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KAYAK's insights & trends for flights to Ireland

Get data-powered insights and trends for 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?

These are the best return prices found by users searching on KAYAK in the last 72 hours.
The cheapest ticket to Ireland from Portugal found in the last 72 hours was to Dublin, at €89 return. The most popular route is Faro (FAO) to Dublin (DUB) and the cheapest return airline ticket found on this route in the last 72 hours was €89.

What is the cheapest day to fly to Ireland?

The average price of all flights from Portugal to Ireland clicked on KAYAK for each day over the last 12 months.
Based on KAYAK data, the cheapest day to fly to Ireland is Thursday when return tickets can be as cheap as €104. On the other hand, the most expensive day to fly is Tuesday, when return prices are €183 on average.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Portugal to Ireland, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Portugal to Ireland is January, when tickets cost €92 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is €222 and €214 respectively.

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

The average price for all round-trip flights from Portugal to Ireland depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Ireland is generally in the morning, when round-trip flights cost €119 on average. The most expensive time of day to fly to Ireland is generally in the afternoon, which is peak travel time and where the average cost of a ticket is €188.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Ireland, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below-average price on the flight from Portugal to Ireland, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 8 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 Dublin Airport (DUB), with an average flight price of €133.

Good to know

Low season

July

High season

April

Cheapest flight

€31
Best time to beat the crowds but there is an average 29% increase in price.
Most popular time to fly (22% 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 1837 reviews
6.2Food
7.8Crew
6.3Entertainment
7.1Comfort
7.0Boarding
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.

Boarding seemed a bit chaotic and we had to walk outside across the tarmac. Passengers of all ages had to drag carry on luggage up the outside stairway into the aircraft. There was no WiFi. Very uncomfortable crammed seats. Glad in-air time was only an hour!

There was no flight. I booked a flight from Toronto to Bordeaux with a stopover in Dublin. I arrived in Dublin and the flight number I had didn't exist and the flight going to Bordeaux I wasn't on. I had to book a new flight with a different airline for later in the day and pay out of pocket.

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!

Friendly crew who apologised and explained reason for delay. Good on board service. Rather cramped seating. Late departure.

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

Book cheap flights from Portugal to Ireland

Recent return flight deals

1/5Thu
directRyanair
2h 40mFAO-ORK
5/5Mon
directRyanair
2h 35mORK-FAO
€56
1/5Thu
directRyanair
3h 00mFAO-DUB
7/5Wed
directRyanair
2h 55mDUB-FAO
€61
1/5Thu
direct
2h 40mFAO-ORK
5/5Mon
1 stop
13h 05mORK-FAO
€108
8/5Thu
direct
3h 00mFAO-DUB
11/5Sun
1 stop
11h 45mDUB-FAO
€119
7/5Wed
directAer Lingus
2h 44mLIS-DUB
11/5Sun
directAer Lingus
2h 50mDUB-LIS
€120
1/5Thu
directAer Lingus
2h 35mFAO-ORK
5/5Mon
directAer Lingus
2h 30mORK-FAO
€137
3/10Fri
1 stopTAP AIR PORTUGAL
13h 05mOPO-DUB
6/10Mon
1 stopTAP AIR PORTUGAL
13h 00mDUB-OPO
€147
29/5Thu
1 stopSWISS
13h 20mFAO-DUB
5/6Thu
1 stopSWISS
9h 00mDUB-FAO
€149
4/9Thu
1 stopTAP AIR PORTUGAL
12h 50mFAO-DUB
7/9Sun
1 stopTAP AIR PORTUGAL
18h 20mDUB-FAO
€150
29/5Thu
1 stopSWISS
23h 20mFAO-DUB
5/6Thu
1 stopSWISS
9h 00mDUB-FAO
€157

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Recent one-way flight deals

13/5Tue
directRyanair
2h 25mOPO-DUB
€31
10/5Sat
directRyanair
2h 45mLIS-DUB
€31
2/5Fri
directAer Lingus
2h 44mLIS-DUB
€59
13/5Tue
directAer Lingus
2h 44mLIS-DUB
€60
9/6Mon
1 stop
26h 55mOPO-DUB
€65
16/7Wed
1 stop
9h 00mFAO-SNN
€72
14/5Wed
1 stopVueling
11h 55mLIS-DUB
€77
4/6Wed
1 stopVueling
11h 55mLIS-DUB
€87
8/10Wed
directTAP AIR PORTUGAL
2h 50mLIS-DUB
€91
11/10Sat
directTAP AIR PORTUGAL
2h 50mLIS-DUB
€102

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Last minute flights to Ireland

Last minute flight, train and bus deals

17/4Thu
directAer Lingus
2h 55mFAO-DUB
21/4Mon
directAer Lingus
2h 55mDUB-FAO
€112
17/4Thu
directRyanair
3h 00mFAO-DUB
21/4Mon
multi-stopRyanair
27h 30mDUB-FAO
€114
17/4Thu
direct
3h 00mFAO-DUB
23/4Wed
multi-stop
15h 05mDUB-FAO
€135
17/4Thu
direct
2h 55mFAO-DUB
20/4Sun
multi-stop
11h 25mDUB-FAO
€170
16/4Wed
multi-stopLufthansa
16h 45mFAO-DUB
20/4Sun
multi-stopLufthansa
21h 20mDUB-FAO
€311
17/4Thu
multi-stopLufthansa
25h 00mFAO-DUB
20/4Sun
multi-stopLufthansa
21h 20mDUB-FAO
€318
16/4Wed
multi-stopKLM
12h 50mLIS-DUB
20/4Sun
multi-stopKLM
9h 30mDUB-LIS
€326
17/4Thu
directTAP AIR PORTUGAL
2h 50mLIS-DUB
20/4Sun
directTAP AIR PORTUGAL
2h 55mDUB-LIS
€327
17/4Thu
directTAP AIR PORTUGAL
2h 50mLIS-DUB
22/4Tue
directTAP AIR PORTUGAL
2h 55mDUB-LIS
€329
16/4Wed
multi-stopKLM
12h 50mLIS-DUB
20/4Sun
multi-stopKLM
9h 30mDUB-LIS
€330

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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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