€25 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 July and June, when the average cost of round-trip tickets is €215 and €212 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 €106.

Good to know

Low season

July

High season

April

Cheapest flight

€25
Best time to beat the crowds but there is an average 24% increase in price.
Most popular time to fly (27% more expensive on average)
Flight from Lisbon 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.

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 1851 reviews
7.0Boarding
7.8Crew
6.3Entertainment
6.2Food
7.1Comfort
Airline reviews

The crew was very nice. The food was good. The entertainment on the way back to Miami wasn’t as good as the flight over. I wanted to watch Wicked but on the way over from Miami to Lisbon but the screen didn’t work. On the way from Lisbon to Miami Wicked wasn’t an option. Liked the option to check out overhead carry on with our checked luggage Overall the flights were very good. I would fly TaP again

10.0 ExcellentJanet, Apr 2025LIS - MIA
Read more TAP AIR PORTUGAL reviews

The crew was very nice. The food was good. The entertainment on the way back to Miami wasn’t as good as the flight over. I wanted to watch Wicked but on the way over from Miami to Lisbon but the screen didn’t work. On the way from Lisbon to Miami Wicked wasn’t an option. Liked the option to check out overhead carry on with our checked luggage Overall the flights were very good. I would fly TaP again

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.

I believe it was short flight in plane I understand not that much compared to other airlines but weighting for checkin was too long need extra person for checkin or Atleast someone to let the customer knows don’t worry someone will be here shortly.

Seats were alarming close to the row in front of you. I didn’t do the measurements online, which I’m sure they’re available, but it seemed much tighter than other planes, but the airplane itself was well maintained and looked fairly new. My only complaint on the staff was that we’re on an international flight. Normally they give you wine with dinner and the flight attendant decided to pull some strict restrictions and wouldn’t give more than one glass of wine per person, and you could not share with your spouse, which seemed ridiculous when we have four people on the plane with us and only one person ordered wine asked for a second one and she said oh absolutely not. It’s only one per person Which on a transcontinental usually is not the case. They’re very attentive on making sure everyone is as comfortable as possible.

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!

Book cheap flights from Portugal to Ireland

Recent return flight deals

22/5Thu
directRyanair
3h 00mFAO-DUB
26/5Mon
directRyanair
2h 55mDUB-FAO
€61
6/6Fri
directRyanair
3h 00mFAO-DUB
8/6Sun
directRyanair
2h 55mDUB-FAO
€70
14/5Wed
direct
2h 44mLIS-DUB
18/5Sun
direct
2h 55mDUB-LIS
€109
10/6Tue
direct
2h 25mOPO-DUB
23/6Mon
1 stop
10h 30mDUB-OPO
€110
17/5Sat
directTAP AIR PORTUGAL
2h 50mLIS-DUB
18/5Sun
directTAP AIR PORTUGAL
2h 55mDUB-LIS
€118
18/9Thu
1 stopTAP AIR PORTUGAL
11h 35mOPO-DUB
21/9Sun
1 stopTAP AIR PORTUGAL
15h 10mDUB-OPO
€118
16/5Fri
directAer Lingus
2h 44mLIS-DUB
18/5Sun
directAer Lingus
2h 50mDUB-LIS
€127
15/5Thu
1 stopSWISS
13h 20mFAO-DUB
19/5Mon
1 stopSWISS
23h 45mDUB-FAO
€156
16/5Fri
1 stopSWISS
12h 50mFAO-DUB
20/5Tue
1 stopSWISS
23h 30mDUB-FAO
€190
11/5Sun
directAer Lingus
2h 55mFAO-DUB
13/5Tue
directAer Lingus
2h 55mDUB-FAO
€258

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Recent one-way flight deals

28/5Wed
directRyanair
2h 45mLIS-DUB
€25
13/5Tue
directRyanair
3h 00mFAO-DUB
€25
28/5Wed
1 stopVueling
11h 10mOPO-DUB
€39
29/5Thu
1 stopVueling
12h 20mLIS-DUB
€53
30/5Fri
directAer Lingus
2h 44mLIS-DUB
€56
7/5Wed
directAer Lingus
2h 44mLIS-DUB
€61
14/5Wed
1 stop
9h 15mFAO-DUB
€66
17/5Sat
directTAP AIR PORTUGAL
2h 50mLIS-DUB
€71
16/5Fri
1 stopTAP AIR PORTUGAL
11h 25mOPO-DUB
€73
2/7Wed
1 stop
23h 30mFAO-DUB
€75

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Last minute flights to Ireland

Last minute flight, train and bus deals

1/5Thu
directTAP AIR PORTUGAL
2h 50mLIS-DUB
4/5Sun
directTAP AIR PORTUGAL
2h 55mDUB-LIS
€116
4/5Sun
direct
3h 00mFAO-DUB
6/5Tue
multi-stop
9h 45mDUB-FAO
€118
3/5Sat
directRyanair
3h 00mFAO-DUB
5/5Mon
multi-stopRyanair
14h 55mDUB-FAO
€123
3/5Sat
multi-stopRyanair
10h 10mFAO-DUB
5/5Mon
directRyanair
2h 55mDUB-FAO
€126
4/5Sun
multi-stopRyanair
23h 00mFAO-SNN
11/5Sun
directRyanair
2h 45mSNN-FAO
€133
3/5Sat
directAer Lingus
2h 35mFAO-ORK
6/5Tue
directAer Lingus
2h 30mORK-FAO
€139
2/5Fri
directAer Lingus
2h 55mFAO-DUB
5/5Mon
directAer Lingus
2h 55mDUB-FAO
€163
3/5Sat
multi-stopLufthansa
8h 30mFAO-DUB
5/5Mon
multi-stopLufthansa
21h 20mDUB-FAO
€277
30/4Wed
multi-stopKLM
12h 50mLIS-DUB
4/5Sun
multi-stopKLM
12h 45mDUB-LIS
€291
2/5Fri
multi-stopLufthansa
25h 00mFAO-DUB
5/5Mon
multi-stopLufthansa
21h 20mDUB-FAO
€319

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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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