$46 Find Cheap Flights from Ireland to Portugal

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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?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

The cheapest ticket to Portugal from Ireland found in the last 72 hours was to Funchal, at $96 round-trip. The most popular route is Dublin (DUB) to Lisbon (LIS) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $123.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Ireland to Portugal, 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 Ireland to Portugal is February, when tickets cost $215 (return) on average. On the other hand, the most expensive months are December and October, when the average cost of round-trip tickets is $678 and $471 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Portugal, 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 Ireland to Portugal, you should book around 5 weeks before departure. For the absolute cheapest price, our data suggests you should book 15 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 $96.


Good to know

Low seasonJanuary
High seasonJuly
Cheapest flight$46
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly with an average 20% increase in price.
Flight from Dublin to Lisbon

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 Tuesday where round-trip tickets can be as cheap as $201. On the other hand, the most expensive day to fly is Thursday, where round-trip prices are $260 on average.

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

    The cheapest time of day to fly to Portugal is generally in the evening, when round-trip flights cost $221 on average. On average, there is no price difference when choosing to fly in the morning or the evening on this flight route. The most expensive time of day to fly to Portugal is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $244.

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.
7.1
Aer LingusOverall score based on 1117 reviews
6.4Food
7.0Comfort
7.2Boarding
7.9Crew
6.8Entertainment
Airline reviews

At check-in the unmanned machines said QR code was invalid so had to queue for over an hour to check in bags

4.0 OkayLeo, May 2025DUB - LHR
Read more Aer Lingus reviews

At check-in the unmanned machines said QR code was invalid so had to queue for over an hour to check in bags

There was no room in the seats, smallest room we've ever had and the food was awful.

i used to fly aer Lingus regularly but due to price - poor seating etc i have been using other carriers - i now have aer lingus in my state and the price is always the highest - i have flown to Ireland 11 times in last 24 months and have not used Hartford because of price

Nicest staff I’ve experienced on a plane! Good food, great entertainment, and they gave out little blankets that my kids loved. All in all, great experience.

I dont fly them much anymore. Other carries offere better pricing and better seating options

Seats weren't very comfortable for a long haul flight but the service made up for it.

The Glasgow to Dublin route was very efficiently boarded, flight and landing and disembarkation were all super smooth. Dublin to JFK flight I was very pleasantly surprised overall. This was my first time on Aer Lingus and having already come off the short regional flight I was curious to know how the international flight would go. Aircraft was solid, entertainment options were better than expected, flight crew were experienced and operated like clockwork. Main entree left a little something to be desired but the snack was very tasty. Boarding and disembarkation again very smooth and pilots got us in earlier than expected. Would definitely fly again

Unfortunately the flight was delayed for 50 min. Just as we were about to board so that was a drag. The boarding was average. The bag check in process was new to us and efficient. And the flight itself was smooth- basically no turbulence.

It was ok not that much because I always travel with Emirates airlines, Etihad, airlines, Qatar airlines compare to them food and comfortable was too low . Staff was good . Helpful

Noted in last review. Good to know, though air Lingus on European flights does not offer any food or drink, even though we were on the plane for 3 1/2 hours from Naples to Dublin everything you had to purchase even water.

Food was edible, not great, and served by attendants who looked like they really were not happy working the flight. The section I was in was too warm making the 11 hour flight uncomfortable. Other areas on the plane were fine.

I’ve never had worse food in business class ever!

Checked bG chstgr was extremely high. Over $120. It was s bsit and switch knowing an international passenger would have t9 check a bag.

First, communication was terrible. The gate on our ticket was not what was reflected on the airport screens and TAP personnel were not present at either gate to answer questions. The flight was delayed and there was no announcement. Also, there was an equipment swap to a smaller airframe which affected our level of comfort. The root of all these issues was as a lack of communication. With air travel in foreign countries already being a stressful affair, lack of communication needlessly raises the level of difficulty.

Checkin was very slow, we had checked in online and hoping we could do a bag drop at the airport. However everyone with checked bags had to queue up and it took over 40mins. Our advice arrive extra early or you will be rushing to the gate.

On time, politeness, food okay but entertneiment mediocre with only old movie and the so called new we’re 2 or 3…

Do you have a bad service And And treat customers terrible

Awful. I told them to cancel my return flight and they didn’t then charged me +$800 days before the flight for a biz class upgrade bid. When I called to confirm cancellation and get refund on buz class upgrade they said I had to go thru orbitz and it was too late. Scammers. Beware.

Little leg room in business. I am tall and could use more.

Was a cheap flight and it got me to Portugal on time. For economy there was ample leg room and the flight attendants were pleasant and helpful.

Flight was over an hour late. Boarding was really messy with long queues at the plane.

Cabin crew couldn’t be less interested. Cabin manager was the most arrogant and the rudest I’ve encountered in many years.

The worst flight ever. Sitting in plane for 4 hours delay and then they change crew. No water or food offered to any passengers including children in that time. Only 2 toilets out of 3 operating for flight with 200 passengers. Only enough food available for about 7 rows of seats depending where you sat you might be lucky. Cabin crew very unfriendly.

Unnecessarily delayed and remarkably inefficient boarding contributed to a significantly delayed departure. Seats/legroom astonishingly uncomfortable even by Ryanair standards (minimal legroom plus reinforced plastic seat backs ensure you get punched hard in the knees every time the person in front moves, and as a 6-foot passenger I had nowhere else to put my legs. Upon late arrival at the gate in Luton we were kept waiting another 20 minutes before being allowed off the plane. Both Easyjet and Wizzair are currently a better bet.

I bought my flight, insurance etc early and paid over £200. But had i waited until closer the time the price was much cheaper, i appreciate that it could've been more expensive but it wasn't. A better discount for booking early would be better than your current one

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.

Big delay on run way not much explanation why, missed a important meeting in Dublin, maybe if they did nt persist measuring everyone bag over 2 cm we would have got off on time.

On time boarding, on time departure and early arrival. As it should be. Yes, the comfort and benefits are very poor, but therefore the ticket is 6 times cheaper than with a flag carrier. So I am not complaining about it. You get what you pay for.

The punctuality of f the flight was super: we left on time and arrived about 20 minutes early - and the cabin crew were both friendly and efficient. The only downside was that Ryanair appears to have resumes its old obsession with sizing cabin bags again after a long and welcome absence.

Boarding was fast and efficient. The crew was super friendly. Since it’s a budget airline and it’s a short flight, I can’t expect food or entertainment.

Book cheap flights from Ireland to Portugal

Recent round-trip flight deals

10/14Tue
nonstopRyanair
2h 45mDUB-LIS
10/19Sun
nonstopRyanair
2h 45mLIS-DUB
$100
10/1Wed
nonstopRyanair
2h 50mDUB-LIS
10/2Thu
nonstopRyanair
2h 45mLIS-DUB
$103
12/12Fri
nonstop
2h 55mDUB-LIS
12/14Sun
nonstop
2h 50mLIS-DUB
$161
12/12Fri
nonstop
2h 55mDUB-LIS
12/14Sun
1 stop
14h 30mLIS-DUB
$167
11/15Sat
nonstopTAP AIR PORTUGAL
2h 55mDUB-LIS
11/21Fri
nonstopTAP AIR PORTUGAL
2h 55mLIS-DUB
$168
11/13Thu
nonstopTAP AIR PORTUGAL
2h 55mDUB-LIS
11/17Mon
nonstopTAP AIR PORTUGAL
2h 55mLIS-DUB
$176
11/14Fri
1 stopVueling
7h 05mDUB-LIS
11/17Mon
1 stopVueling
14h 30mLIS-DUB
$201
7/26Sat
nonstopAer Lingus
2h 50mDUB-LIS
8/2Sat
nonstopAer Lingus
2h 44mLIS-DUB
$203
10/10Fri
nonstopAer Lingus
2h 50mDUB-LIS
10/12Sun
nonstopAer Lingus
2h 50mLIS-DUB
$214
7/1Tue
1 stopVueling
11h 35mDUB-OPO
7/8Tue
1 stopVueling
11h 10mOPO-DUB
$257

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Recent one-way flight deals

10/1Wed
nonstopRyanair
2h 50mDUB-LIS
$46
9/15Mon
nonstopRyanair
2h 50mDUB-LIS
$49
9/13Sat
nonstopRyanair
2h 50mDUB-LIS
$61
11/3Mon
1 stopVueling
7h 05mDUB-LIS
$75
11/2Sun
nonstopTAP AIR PORTUGAL
2h 55mDUB-LIS
$77
9/30Tue
1 stopVueling
12h 45mDUB-LIS
$81
11/2Sun
nonstopTAP AIR PORTUGAL
2h 55mDUB-LIS
$89
8/27Wed
1 stop
22h 35mDUB-OPO
$91
11/13Thu
1 stop
11h 20mDUB-LIS
$97
7/23Wed
nonstopAer Lingus
2h 50mDUB-LIS
$114

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Last minute flights to Portugal

Last minute flight, train and bus deals

6/18Wed
multi-stop
37h 00mDUB-LIS
6/22Sun
nonstop
2h 45mLIS-DUB
$303
6/18Wed
multi-stop
37h 00mDUB-LIS
6/22Sun
multi-stop
31h 50mLIS-DUB
$322
6/19Thu
multi-stopSWISS
22h 40mDUB-LIS
6/26Thu
multi-stopSWISS
17h 20mLIS-DUB
$329
6/19Thu
multi-stopSWISS
23h 50mDUB-OPO
6/25Wed
multi-stopSWISS
17h 20mOPO-DUB
$353
6/18Wed
multi-stop
21h 55mDUB-LIS
6/22Sun
multi-stop
12h 10mLIS-DUB
$356
6/16Mon
multi-stopLufthansa
16h 10mDUB-LIS
6/19Thu
multi-stopLufthansa
27h 05mLIS-DUB
$389
6/16Mon
multi-stopLufthansa
16h 10mDUB-LIS
6/28Sat
multi-stopLufthansa
27h 05mLIS-DUB
$390
6/16Mon
nonstopRyanair
2h 50mDUB-LIS
6/28Sat
nonstopRyanair
2h 45mLIS-DUB
$412
6/16Mon
nonstopTAP AIR PORTUGAL
2h 55mDUB-LIS
6/19Thu
nonstopTAP AIR PORTUGAL
2h 50mLIS-DUB
$509
6/16Mon
nonstopTAP AIR PORTUGAL
2h 55mDUB-LIS
6/19Thu
nonstopTAP AIR PORTUGAL
2h 50mLIS-DUB
$575

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Everything you need to know for your flight to Portugal

Cabin class types available on flights to Portugal

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

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