$52 Cheap Flights from Dublin (DUB) to Porto (OPO)

View $52 flight on Sun, Oct 12, 2025Opens in a new window

Popular airlines from Dublin Airport (DUB) to Porto Airport (OPO)

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Find available prices by choosing your travel dates.

Cheap Flights from Dublin to Porto (DUB-OPO)

Prices were available within the past 7 days and start at $52 for one-way flights and $84 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Ryanair
Tue, May 6 - Wed, May 14
DUB
Dublin
OPO
Porto
$84 Roundtrip, found 6 days ago
$84
Roundtrip
found 6 days ago
Select Ryanair flight, departing Tue, May 6 from Dublin to Porto, returning Wed, May 14, priced at $84 found 6 days ago
Ryanair
Wed, May 7 - Wed, May 14
DUB
Dublin
OPO
Porto
$98 Roundtrip, found 5 days ago
$98
Roundtrip
found 5 days ago
Select Ryanair flight, departing Wed, May 7 from Dublin to Porto, returning Wed, May 14, priced at $98 found 5 days ago
Ryanair
Sun, Sep 28 - Sat, Oct 4
DUB
Dublin
OPO
Porto
$112 Roundtrip, found 6 hours ago
$112
Roundtrip
found 6 hours ago
Select Ryanair flight, departing Sun, Sep 28 from Dublin to Porto, returning Sat, Oct 4, priced at $112 found 6 hours ago
Ryanair
Sat, Oct 11 - Wed, Oct 15
DUB
Dublin
OPO
Porto
$121 Roundtrip, found 6 days ago
$121
Roundtrip
found 6 days ago
Select Ryanair flight, departing Sat, Oct 11 from Dublin to Porto, returning Wed, Oct 15, priced at $121 found 6 days ago
Ryanair
Fri, May 9 - Tue, May 13
DUB
Dublin
OPO
Porto
$126 Roundtrip, found 17 hours ago
$126
Roundtrip
found 17 hours ago
Select Ryanair flight, departing Fri, May 9 from Dublin to Porto, returning Tue, May 13, priced at $126 found 17 hours ago
Ryanair
Tue, May 27 - Thu, May 29
DUB
Dublin
OPO
Porto
$138 Roundtrip, found 2 days ago
$138
Roundtrip
found 2 days ago
Select Ryanair flight, departing Tue, May 27 from Dublin to Porto, returning Thu, May 29, priced at $138 found 2 days ago
TAP Portugal
Sun, Sep 28 - Sat, Oct 4
DUB
Dublin
OPO
Porto
$159 Roundtrip, found 6 hours ago
$159
Roundtrip
found 6 hours ago
Select TAP Portugal flight, departing Sun, Sep 28 from Dublin to Porto, returning Sat, Oct 4, priced at $159 found 6 hours ago
Lufthansa
Wed, May 21 - Tue, May 27
DUB
Dublin
OPO
Porto
$225 Roundtrip, found 3 days ago
$225
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Wed, May 21 from Dublin to Porto, returning Tue, May 27, priced at $225 found 3 days ago
Vueling Airlines
Mon, Apr 28 - Tue, Apr 29
DUB
Dublin
OPO
Porto
$245 Roundtrip, found 6 days ago
$245
Roundtrip
found 6 days ago
Select Vueling Airlines flight, departing Mon, Apr 28 from Dublin to Porto, returning Tue, Apr 29, priced at $245 found 6 days ago
Scandinavian Airlines
Thu, Oct 30 - Fri, Nov 21
DUB
Dublin
OPO
Porto
$253 Roundtrip, found 2 days ago
$253
Roundtrip
found 2 days ago
Select Scandinavian Airlines flight, departing Thu, Oct 30 from Dublin to Porto, returning Fri, Nov 21, priced at $253 found 2 days ago
Flights from Dublin (DUB) to Porto (OPO)
Origin airport
Dublin
Destination airport
Dr. Francisco de Sa Carneiro
Airlines serving
Air France, Austrian Airlines, British Airways, Iberia, KLM, Lufthansa, Luxair, Norwegian Air Shuttle, Ryanair, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Vueling Airlines
Roundtrip price
$84
Distance
849 mi

Dublin to Porto Flights

The cheapest times to fly from Dublin to Porto

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Dublin to Porto are during the month of May. You can find some of the cheapest flights from Dublin to Porto with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Dublin to Porto

Sunday is one of the best days to book for cheap flights from Dublin to Porto: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Dublin to Porto

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Dublin to Porto in 2025. You can also book with separate airlines for your outbound and return journeys, from $52 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Dublin to Porto flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Dublin to Porto airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Dublin Airport (DUB) to Dr. Francisco de Sa Carneiro Airport (OPO) cost?
Cheap round-trip flights from Dublin Airport (DUB) to Dr. Francisco de Sa Carneiro Airport (OPO) start from $124. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Ryanair flight leaving DUB on May 7 2025 and touching down at OPO. The price was last updated on April 23 2025 and has not changed since.
What is the cheapest month to fly from DUB to OPO?
The cheapest flights from DUB to OPO are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from DUB to OPO?
Right now, the cheapest carrier offering one-way flights from DUB to OPO is Ryanair. You can book a seat on this route from $46. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from DUB on May 6 2025. Prices were last updated on April 23 2025 and have not changed since.
How many flights per day from Dublin Airport (DUB) to Dr. Francisco de Sa Carneiro Airport (OPO)?
On average you can take your pick of 5 direct flights each week from Dublin Airport (DUB) to Dr. Francisco de Sa Carneiro Airport (OPO). To expand your choices, consider a flight with a layover. Simply enter your details on Expedia and then filter your search to include one stop or more.
What are the most popular departure times for flights from Dublin Airport (DUB) to Dr. Francisco de Sa Carneiro Airport (OPO)?
The 8 PM departures from DUB to OPO are the most sought after. They can also be more expensive. If you want to save money, book during off-peak hours.
What day of the week has the most flights from DUB to OPO?
Fly on a Friday if you’re looking for the best choice of flights from Dublin Airport (DUB) to Dr. Francisco de Sa Carneiro Airport (OPO).
What is the earliest flight from Dublin Airport (DUB) to Dr. Francisco de Sa Carneiro Airport (OPO)?
Dublin Airport (DUB)’s first flight to Dr. Francisco de Sa Carneiro Airport (OPO) departs at approximately 9:10AM UTC+0. With a total travel time of 2h 25m, you’ll land at around 11:35AM UTC+0.
How long does it take to fly from Dublin Airport (DUB) to Dr. Francisco de Sa Carneiro Airport (OPO)?
The average flight duration from DUB to OPO is 2 hours and 25 minutes, covering a total distance of 850 mi.
What is the best time to fly from Dublin Airport (DUB) to Dr. Francisco de Sa Carneiro Airport (OPO)?
To arrive at Dr. Francisco de Sa Carneiro Airport (OPO) without delays, select a flight that leaves from Dublin Airport (DUB) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Porto from Dublin Airport (DUB)?
If you’re boarding a direct flight from Dublin Airport (DUB) to Porto, Dr. Francisco de Sa Carneiro Airport (OPO) is the only airport you can touch down at.
Is it cheaper to buy a plane ticket from Dublin Airport (DUB) to Dr. Francisco de Sa Carneiro Airport (OPO) last-minute?
Booking your flight from DUB to OPO shortly before your journey is generally more expensive. However, if you’re flexible with your itinerary, you could snag a cheap last-minute fare.
Is it cheaper to book a DUB to OPO flight and hotel package?
Compared with arranging hotels and flights separately, booking a DUB to OPO flight and hotel package with Expedia could lead to significant savings. What’s more, having everything in one convenient place will take the hassle out of travel planning. Just pick your flights and choose from our wide range of hotels, then tailor your trip with other add-ons like activities and car rentals.
Can I cancel or change the date of my flight from Dublin Airport (DUB) to Dr. Francisco de Sa Carneiro Airport (OPO)?
You can usually cancel or reschedule your DUB to OPO flight. However, if it’s been more than 24 hours since booking, additional charges may apply. Check your airline’s policies in your itinerary to see what changes are allowed and whether any costs are involved. You’ll also find further details on our Customer Service portal.

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*Available to One Key members.