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Cheap flights from Ireland to Porto from £34

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/1. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — OPO
27 Dec — 3 Jan1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Ireland to Porto

Enter your travel dates to find the best prices.

Cheapest flights from Ireland to Porto
Explore the most affordable flight options available from Ireland to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 November 2025.

Fri 5/1206:25DUB - OPO
1 stop5h 10mRyanair
Fri 5/1215:50OPO - DUB
1 stop7h 30mRyanair
Deal found 25/11£115
Thu 11/1218:35DUB - OPO
1 stop16h 35mSWISS
Sat 13/1211:55OPO - DUB
1 stop5h 50mSWISS
Deal found 23/11£133
Fri 5/1206:25DUB - OPO
1 stop5h 10mMultiple Airlines
Fri 5/1221:55OPO - DUB
2 stops26h 55mMultiple Airlines
Deal found 25/11£142
Thu 11/1205:00DUB - OPO
2 stops8h 15mLufthansa
Sat 13/1206:15OPO - DUB
1 stop10h 55mLufthansa
Deal found 23/11£147
Fri 19/1212:30DUB - OPO
Nonstop2h 20mRyanair
Mon 12/106:30OPO - DUB
Nonstop2h 20mRyanair
Deal found 26/11£209
Mon 22/1209:15DUB - OPO
Nonstop2h 20mRyanair
Tue 6/107:05OPO - DUB
Nonstop2h 15mRyanair
Deal found 24/11£210
Fri 26/1212:30DUB - OPO
Nonstop2h 20mRyanair
Fri 2/109:45OPO - DUB
Nonstop2h 20mRyanair
Deal found 26/11£223
Fri 26/1206:30DUB - OPO
1 stop9h 25mMultiple Airlines
Fri 2/106:20OPO - DUB
1 stop8h 35mMultiple Airlines
Deal found 26/11£230

Cheap flight deals from Ireland to Porto

Keep the following information in mind while searching for Ireland to Porto flight deals. Data was last updated 27 November 2025.

Round-trip from

£34

Popular in

June

Cheapest in

February

Average price

£158

Good round-trip deal

£124 or less
Ryanair
  • Ryanair
  • 12/1-28/1
  • Nonstop
  • 4h 40m total
  • Ireland to Porto
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£19 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Ireland to Porto.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Ireland to Porto that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 27 November 2025.
Use the filters below to find and compare flights from Ireland to Porto that are best for you.

Fly from

Ireland

Fly to

Porto

Route

Depart

Return

Price

DublinPorto

DUB - OPO

DUBOPO

Dublin

Sat 17/1

08:55-11:15

Nonstop2h 20m

Porto

Tue 20/1

21:05-23:25

Nonstop2h 20m

£42

DublinPorto

DUB - OPO

DUBOPO

Dublin

Wed 7/1

09:50-12:10

Nonstop2h 20m

Porto

Wed 14/1

06:45-09:05

Nonstop2h 20m

£54

DublinPorto

DUB - OPO

DUBOPO

Dublin

Mon 12/1

06:30-14:15

1 stop7h 45m

Porto

Wed 28/1

06:45-09:05

Nonstop2h 20m

£60

DublinPorto

DUB - OPO

DUBOPO

Dublin

Fri 9/1

12:30-14:50

Nonstop2h 20m

Porto

Fri 16/1

14:10-23:10

1 stop9h 00m

£70

DublinPorto

DUB - OPO

DUBOPO

Dublin

Mon 13/4

18:50-00:40

1 stop5h 50m

Porto

Wed 22/4

10:00-23:55

1 stop13h 55m

£125

DublinPorto

DUB - OPO

DUBOPO

Dublin

Thu 11/12

18:35-11:10

1 stop16h 35m

Porto

Sat 13/12

11:55-17:45

1 stop5h 50m

£133

DublinPorto

DUB - OPO

DUBOPO

Dublin

Wed 8/4

20:45-23:10

Nonstop2h 25m

£51

DublinPorto

DUB - OPO

DUBOPO

Dublin

Wed 21/1

09:50-12:10

Nonstop2h 20m

£58

DublinPorto

DUB - OPO

DUBOPO

Dublin

Sat 14/2

19:30-08:25

1 stop12h 55m

£70

DublinPorto

DUB - OPO

DUBOPO

Dublin

Wed 1/4

11:10-18:10

1 stop7h 00m

£74

Flights are sorted by cheapest return flights first.

Deals found on 24/11

Showing 1-10 of 16 results
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Best time to book a flight from Ireland to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Ireland with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ireland to Porto

What is the cheapest month to book a flight from Ireland to Porto?

Currently, November is the cheapest month in which you can book a flight from Ireland to Porto (average of £50). Flying from Ireland to Porto in June is currently the most expensive (average of £144). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IE to OPO?

Find hourly flight availability from Ireland to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 27 November 2025.

When flying from Ireland to Porto, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 50% versus a flight in the morning.

How often are flights from Ireland to Porto delayed?

About 29% of weekly flights between Ireland and Porto have experienced delays in the past year, with the average delay time being 115 minutes.

What is the most punctual flight time for Ireland to Porto flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Monday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Ireland to Porto flights?

Over the past year, Ryanair have had the lowest number of delays on this route, with just 29% of flights being delayed.

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Porto. Reviews last updated 27 November 2025.
Read through reviews of airlines operating flights from Ireland to Porto, such as Ryanair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Ryanair
6.8
Okay
5,207 reviews
Check prices

Boarding

6.7

Overall

6.8

Entertainment

5.6

Food

6.0

Comfort

6.5

Crew

7.5

Reviews

1 / 20
2.0
Mediocre

brendan,Sept 2025

MAN - NTE

It would have been better if I had a flown with Ryanair but I was ill and warm be coming back on the return flight
Ryanair
6.8
Okay
5,207 reviews
Ryanair
6.8
Okay
5,207 reviews
Check prices

Boarding

6.7

Overall

6.8

Entertainment

5.6

Food

6.0

Comfort

6.5

Crew

7.5

Reviews

1 / 20
2.0
Mediocre

brendan,Sept 2025

MAN - NTE

It would have been better if I had a flown with Ryanair but I was ill and warm be coming back on the return flight

Related info for your journey

Find useful and relevant information for your journey from Ireland to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Porto from Ireland?

    Porto (OPO) is the airport you will fly into if you book a flight from Ireland to Porto. It is only a 6.8 mi journey from Porto (OPO) to Porto’s city center.

  • How popular is this Ireland to Porto flight route?

    Flights from Ireland to Porto have been viewed 53 times in the past calendar month.

  • How long is the flight from Ireland to Porto?

    Departing from Ireland to Porto will take you 2h 20m. Airlines will cover a distance of 848 mi. All flights are typically direct.

  • What are the cheapest airlines to fly from Ireland to Porto one-way?

    One-way options have recently been found by users for as low as £51 on Ryanair. Other airlines that offer cheap prices include Vueling from £70 and KLM from £74 one-way.

  • What are the cheapest flights from Ireland to Porto?

    The cheapest flight price from Ireland to Porto is £49. On average you can expect to pay £225. The most popular route, (Dublin - Porto), can usually be booked for £161.

  • Can I find deals for flights from Ireland to Porto that include hotel bookings?

    Yes. In addition to deals on Ireland to Porto flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Ireland to Porto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ireland to Porto.

  • Can I find deals for business class flights from Ireland to Porto?

    Yes. Cheapflights offers flight deals from Ireland to Porto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ireland to Porto?

    Currently, November is the cheapest month in which you can book a flight from Ireland to Porto (average of £50). Flying from Ireland to Porto in June is currently the most expensive (average of £144). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Coimbra
Guimarães
Chaves
Viseu
Vila Nova de Gaia
Aveiro

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Alternative routes for Ireland to Porto

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Ireland to Porto

Discover the top airline that operate flights from Ireland to Porto. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 27 November 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£87Average£171FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Ireland to Porto?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Porto from Ireland today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Ireland to Porto?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Ireland to Porto for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Ireland to Porto with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Ireland to Porto flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Ireland to Porto become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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