€42 Find Cheap Flights from Portugal to Dublin – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Dublin departing on 28/7. 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
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Dublin

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Dublin, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Dublin, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Portugal to Dublin

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Portugal to Dublin that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Portugal to Dublin

Tue, 28 Jul - Wed, 29 Jul
Ryanair Logo
06:20 - 14:05
FAO
-
DUB
7h 45m
1 stop
Ryanair Logo
08:50 - 11:45
DUB
-
FAO
2h 55mdirect
€77Ryanair
Tue, 28 Jul - Wed, 29 Jul
Ryanair Logo
06:20 - 14:05
FAO
-
DUB
7h 45m
1 stop
Ryanair Logo
05:45 - 08:40
DUB
-
FAO
2h 55mdirect
€82Ryanair
Tue, 28 Jul - Wed, 29 Jul
Ryanair Logo
06:20 - 14:05
FAO
-
DUB
7h 45m
1 stop
Ryanair Logo
05:45 - 08:40
DUB
-
FAO
2h 55mdirect
€83Ryanair
Tue, 21 Jul - Wed, 29 Jul
Ryanair Logo
06:20 - 14:05
FAO
-
DUB
7h 45m
1 stop
Ryanair Logo
20:35 - 23:30
DUB
-
FAO
2h 55mdirect
€84Ryanair
Tue, 28 Jul - Wed, 29 Jul
Ryanair Logo
06:20 - 14:05
FAO
-
DUB
7h 45m
1 stop
Ryanair Logo
05:45 - 08:40
DUB
-
FAO
2h 55mdirect
€86Ryanair
Thu, 23 Jul - Sun, 26 Jul
Ryanair Logo
07:30 - 22:35
FAO
-
DUB
15h 05m
1 stop
Ryanair Logo
20:25 - 23:20
DUB
-
FAO
2h 55mdirect
€89Ryanair
Fri, 28 Aug - Mon, 31 Aug
Ryanair Logo
17:45 - 20:40
FAO
-
DUB
2h 55mdirect
Ryanair Logo
06:00 - 08:55
DUB
-
FAO
2h 55mdirect
€90Ryanair
Thu, 23 Jul - Sun, 26 Jul
Ryanair Logo
07:30 - 22:35
FAO
-
DUB
15h 05m
1 stop
Ryanair Logo
20:25 - 23:20
DUB
-
FAO
2h 55mdirect
€92Ryanair
Wed, 29 Jul - Sun, 2 Aug
Multiple Airlines Logo
21:15 - 22:35
LIS
-
DUB
25h 20m
2 stops
Multiple Airlines Logo
19:05 - 21:55
DUB
-
LIS
2h 50mdirect
€118Multiple Airlines
Wed, 29 Jul - Sun, 2 Aug
Multiple Airlines Logo
22:15 - 00:59
LIS
-
DUB
2h 44mdirect
Multiple Airlines Logo
19:05 - 21:55
DUB
-
LIS
2h 50mdirect
€123Multiple Airlines
Booking Insights

KAYAK's insights & trends for flights to Dublin

Get data-powered insights and trends into flights to Dublin to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Dublin?

These are the best round-trip prices found by users searching on KAYAK in the last 5 days.

In the last 3 days, the cheapest flight deal to Dublin was found on the route from Porto, at €77 return. The most popular connection is from Lisbon to Dublin and KAYAK users have found return deals for as low as €118 in the last 3 days.

What is the cheapest day to fly to Dublin?

The average price of all round-trip flights to Dublin clicked on KAYAK for each day over the last 12 months.

Based on KAYAK data, the cheapest day to fly to Dublin is Monday where round-trip tickets can be as cheap as €97. On the other hand, the most expensive day to fly is Saturday, where round-trip prices are €542 on average.

What is the cheapest month to fly to Dublin?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights to Dublin, 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 to Dublin is February, where tickets cost €30 on average for return flights. On the other hand, the most expensive months are October and December, where the average cost of tickets from Portugal is €416 and €403 respectively. For one-way flights, the best month to travel is March with an average price of €18.

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

The average price for all round-trip flights to Dublin depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Dublin is generally in the morning, when round-trip flights cost €136 on average. The most expensive time of day to fly to Dublin is generally in the evening, which is peak travel time and where the average cost of a ticket is €216.

What is a good deal for flights to Dublin?

If you’re looking for cheap airfare to Dublin, 25% of our users found tickets to Dublin for the following prices or less: From Lisbon €170 return.

How far in advance should I book a flight to Dublin?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Dublin, 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, you should book around 3 weeks before departure, which saves you about 53% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Good to know

Low seasonJuly
Cheapest flight€42
Best time to beat the crowds but there is an average 60% increase in price.
Most popular time to fly and prices are also 21% lower on average.
Flight from Porto to Dublin

FAQs - booking Dublin flights

  • What is the cheapest flight to Dublin?

    In the last 3 days, the cheapest flight deal to Dublin was found on the route from Porto, at €77 return. The most popular connection is from Lisbon to Dublin and KAYAK users have found return deals for as low as €118 in the last 3 days.

  • How far is Dublin Airport from central Dublin?

    Central Dublin is 9 km away from Dublin Airport.

  • What is the name of Dublin’s airport?

    All flights to Dublin land at Dublin Airport. The airport code is DUB,and it can also be referred to as Dublin or Dublin Airport.

  • How much is a flight to Dublin?

    On average, a flight to Dublin costs €249. The cheapest price found on KAYAK in the last 2 weeks cost €57 and departed from Lisbon Humberto Delgado Airport.

  • How does KAYAK find such low prices on flights to Dublin?

    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 to Dublin.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Dublin?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Dublin is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Dublin?

    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 to Dublin 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 to Dublin?

    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 Dublin up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How much is a flight to Dublin?

    A flight to Dublin costs €249 on average. The cheapest price found on KAYAK in the last 2 weeks cost €57 and departed from Lisbon. The most popular routes on KAYAK are Lisbon to Dublin which costs €271 on average, and Faro to Dublin, which costs €542 on average.

Top tips for finding cheap flights to Dublin

  • Looking for cheap airfare to Dublin? 25% of our users found return tickets to Dublin for the following prices or less: From Lisbon €118
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Dublin flight deals.

Reviews of the top 3 airlines flying from Portugal to Dublin

 
See real verified KAYAK customer reviews for airlines flying to Dublin. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Portugal to Dublin. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Dublin? 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.
7.3
Aer LingusOverall score based on 1603 reviews
7.4Boarding
7.2Comfort
7.0Entertainment
8.1Crew
6.7Food
Airline reviews

Aer Lingus App never showed the gate and the board did not update until very close to the time the gate was due to close. Both planes departed late but no announcement was made which would have saved a run for the gate.

6.0 GoodScott, Jun 2026
MAN - DUB
Read more Aer Lingus reviews

Aer Lingus App never showed the gate and the board did not update until very close to the time the gate was due to close. Both planes departed late but no announcement was made which would have saved a run for the gate.

Flight delayed 45 minutes almost caused us to miss connection to transatlantic flight.

Vegetarian food options were pretty tasteless. Gob of rice with absolutely no protein, barely any vegetables, and poorly seasoned. Food was the major disappointment of an otherwise good flight experience. However, food is a differentiator on long haul flights.

We were an hour and a half late, which caused my rental car company to cancel my reservation. We had no car, had to take a taxi to our hotel, and then a taxi back to get a new car the next day. Sometimes lack of on-time performance can end up costing the passenger a lot of money, none of which is covered by the airline that operated the late flight.

Overall good experience. But seats were small and uncomfortable for the price. Good entertainment, staff friendly and attentive.

Flight was delayed no information given really . No food whatsoever on the plane . I think you should be able to put that on the app so people have a chance to buy food bring it with them . They said plane was very busy on way over but there should be enough for both flights as we pay full price for the service. No information or very slow on the app about the delays . Staff were lovely it’s not their fault so company not fare to passengers or staff .

Smooth quiet flight take off and landing both excellent. Food was mediocre. Boarding at gate was disorganized and unacceptable.

My only complaint is that during my 8-hour-long flight, the flight attendants came around with the coffee and tea cart twice instead of the alcoholic beverage cart. I would rather sleep on a plane than rush to the bathroom to take a dump. I asked the flight attendant if I could have a beer instead of coffee or tea. Unfortunately, she said the bar is closed. That tells me that she was too lazy to get me a beer on the plane. I was not happy about that.

Caring & friendly crew. Most important: got us SAFELY to our destination!

Friendly flight attendants, decent food if you can eat dairy.

The crew was excellent. The food was not good. I have taken many international flights and the meal was not good by comparison.

On both flights, TAP Air Portugal messed up the seating choices that I paid for. They acknowledged that I had purchased seating, that they were errant in ensuring my choices, but told me nothing could be done about it. When I asked to be refunded, I was directed to "talk to someone from Air Portugal" Mon-Friday, and then I was dismissed. No help, no phone number provided to me. I was very annoyed both times and feel cheated.

The worst thing was baggage claim. In my return flight I was waiting 90 minutes for my baggage. and when I asked the airport they said it’s the airline. So frustrating after an 8-hour flight.

Business class seats aren't comfortable. Food was not good.

Didn't make announcements during boarding, flight attendant seemed annoyed when I asked for water. Too many hours between flights. Confusing check in at the Lisbon airport.

Chaotic boarding with no announcements. Carry on luggage needs to be checked. Bare minimum zero frill flights. Not a whole lot of anything positive to be said .

It poured rain, our luggage was sitting out in it uncovered on the transport cart while our plane was delayed! Nice business class plane for short flight to Lisbon, but more delay & rain in Lisbon, with terrible Business class seat with no entertainment & cold food on longer flight to London…ALL LUGGAGE AND CLOTHES INSIDE THEM WERE SOAKED THROUGH!!! Could only try with hair dryer to get some drying before quick turn round to train trip.

Delayed at the beginning and the end and almost missed our connection

Menzies group staff not very sympathetic good at breaking up families during the boarding process

They left our luggage uncovered on tarmac in pouring rain during an hour delay of departure! At our final destination, we found ALL OF OUR CLOTHES/SHOES soaked all the way through!! Our 1st connection plane was a great business class accommodation but only 50 minutes long. Our 2nd connection from Lisbon (another delay with luggage uncovered on tarmac) had only the extra legroom and mediocre food in business class - no entertainment and no extra comfort seating. Will not use TAP Air Portugal again!

Enough seat availability for us to move a little and so sit together - but the flight was half an hour late

Easy short trip from Faro to Cardiff. Exceptional staff. Early landing and straight through airport in 15 minutes from touch down.

Guide passenger if fhey board from front or back door cause it was a total mess

I liked almost everything (e.g. ease of booking, price, punctuality, efficiency, friendliness, courtesy). A slam landing in Dublin airport took some of the gloss off it, though. Being able to paste here the text of the review of the same flight that I just wrote for Ryanair would make me feel better about Kayak too.

Delay in boarding with no explanation why. Stood for about 40 mins waiting to board

It would have been better if I was not ill so I didn't go and I didn't come back and I could not transfer my tickets to a later date as Ryanair stop flying from Manchester at the end of October till next year

Take off was great but landing is always with a bump.

Staff were very professional. Much better than the outgoing flight from Dublin. Seat cushions were practically non existent. Making for a very uncomfortable flight.

Flight was delayed by 1 hour 45 minutes. Aircraft was cramped, dirty and uncomfortable. Boarding staff more interested in charging you for oversize baggage than getting you on board. Overall not a pleasant experience.

They were extremely unprofessional and unhelpful at check in. They did not understand laws related to Spanish residents flying with family It was very discriminatory the way we were treated.

Travelling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Athlone
Cavan
Gorey
Dundalk
Swords
Wicklow
Naas
Kildare
Tullamore
Mullingar
Bray
Enniscorthy
Drogheda
Carlingford
Arklow
Castleknock
Maynooth
Thurles
Malahide
Portmarnock

Everything you need to know for your flight to Dublin

Information on the airport you'll fly into in Dublin