£33 Find Cheap Flights from Ireland to Porto

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Porto departing on 7/10. 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

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

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Porto, 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 Porto, as well as popular online travel agencies
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Cheap Flights from Ireland to Porto

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Ireland to Porto 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 Ireland to Porto

Thu, 2 Oct - Tue, 7 Oct
Ryanair Logo
20:10 - 22:35DUB-OPO
2h 25mdirect
Ryanair Logo
22:25 - 00:50OPO-DUB
2h 25mdirect
£122Ryanair
Find Deal
Thu, 2 Oct - Tue, 7 Oct
Ryanair Logo
20:10 - 22:35DUB-OPO
2h 25mdirect
Ryanair Logo
22:25 - 00:50OPO-DUB
2h 25mdirect
£124Ryanair
Find Deal
Fri, 3 Oct - Tue, 7 Oct
TAP AIR PORTUGAL Logo
18:50 - 10:00DUB-OPO
15h 10m1 stop
TAP AIR PORTUGAL Logo
21:15 - 10:00OPO-DUB
12h 45m1 stop
£149TAP AIR PORTUGAL
Find Deal
Fri, 3 Oct - Tue, 7 Oct
TAP AIR PORTUGAL Logo
18:50 - 08:00DUB-OPO
13h 10m1 stop
TAP AIR PORTUGAL Logo
22:30 - 10:00OPO-DUB
11h 30m1 stop
£149TAP AIR PORTUGAL
Find Deal
Fri, 11 Jul - Mon, 14 Jul
 Logo
06:50 - 12:35DUB-OPO
29h 45m2 stops
 Logo
06:15 - 00:40OPO-DUB
18h 25m1 stop
Fri, 11 Jul - Mon, 14 Jul
 Logo
06:50 - 12:35DUB-OPO
29h 45m2 stops
 Logo
06:10 - 12:35OPO-DUB
30h 25m2 stops
Sat, 30 Aug - Thu, 4 Sep
KLM Logo
11:10 - 22:15DUB-OPO
11h 05m1 stop
KLM Logo
06:30 - 12:35OPO-DUB
6h 05m1 stop
£211KLM
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Wed, 25 Jun - Wed, 2 Jul
KLM Logo
11:10 - 19:15DUB-OPO
8h 05m1 stop
KLM Logo
06:15 - 16:40OPO-DUB
10h 25m1 stop
£215KLM
Find Deal
Tue, 2 Sep - Tue, 9 Sep
SWISS Logo
18:40 - 19:05DUB-OPO
24h 25m2 stops
SWISS Logo
18:15 - 17:50OPO-DUB
23h 35m2 stops
£224SWISS
Find Deal
Thu, 2 Oct - Mon, 6 Oct
SWISS Logo
13:00 - 19:10DUB-OPO
30h 10m2 stops
SWISS Logo
19:20 - 17:50OPO-DUB
22h 30m1 stop
£245SWISS
Find Deal
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KAYAK's insights & trends for flights to Porto

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

What is the cheapest month to fly to Porto?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Porto, 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 Porto is February, where tickets cost £101 on average for return flights. On the other hand, the most expensive months are August and December, where the average cost of tickets from Ireland is £233 and £233 respectively. For one-way flights, the best month to travel is February with an average price of £101.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Porto, 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 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know - Cheap tickets from Ireland to Porto

Low seasonFebruary
High seasonJuly
Cheapest flight£33
Best time to beat the crowds (40% less expensive on average)
Most popular time to fly (23% more expensive on average)
Flight from Dublin to Porto

FAQs - booking Porto flights

  • How far is Porto Airport from central Porto?

    Central Porto is 7 miles away from Porto Airport.

  • What is the name of Porto’s airport?

    There is only 1 airport in Porto, called Porto Airport (OPO). It can also be referred to as Aeroporto de Pedras Rubras, Francisco de Sá Carneiro, or Porto.

  • How much is a flight to Porto?

    On average, a flight to Porto costs £108. The cheapest price found on KAYAK in the last 2 weeks cost £47 and departed from Dublin Airport.

  • What is the cheapest day to fly to Porto?

    Based on KAYAK data, the cheapest day to fly to Porto is Tuesday where round-trip tickets can be as cheap as £125. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are £203 on average.

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

    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 Porto.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto 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 Porto?

    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 Porto 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 Porto?

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

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

    The cheapest time of day to fly to Porto is generally at night, when round-trip flights cost £186 on average. The most expensive time of day to fly to Porto is generally in the afternoon, which is peak travel time and where the average cost of a ticket is £232.

  • How many direct flights to Porto are there each week?

    Each week there are around 94 direct flights from within Ireland to Porto. The most common day for departures is Friday, with 17% of flights taking off on this day.

Top tips for finding cheap flights to Porto

  • Looking for cheap airfare to Porto? 25% of our users found round-trip tickets to Porto for the following prices or less: Cheap flights to Porto from Dublin £125
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Porto flight deals.

Top airlines flying from Ireland to Porto

 
See real verified KAYAK customer reviews for airlines flying to Porto. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Ireland to Porto. 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 Porto? 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 1885 reviews
7.8Crew
6.2Food
7.1Comfort
6.3Entertainment
7.0Boarding
Airline reviews

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

6.0 GoodWendi, May 2025BCN - LIS
Read more TAP AIR PORTUGAL reviews

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 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. I'd originally booked to fly Business Class; those seats didn't look that great either.

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.

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.

I liked nothing. An extremely uncomfortable flight, staff were rude, no ice for my drink. 4 hours of misery

On time was excellent, not serving any water and deliberate seatings apart is deplorable.

Travelling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Coimbra
Aveiro
Viseu
Lamego
Guimarães
Pinhao
Baiao
Mesao Frio
Amares
Penafiel

Everything you need to know for your flight to Porto

Information on the airport you'll fly into in Porto

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