$29 Cheap Flights from Dublin (DUB) to Porto (OPO)

View $29 flight on Tue, Nov 4, 2025Opens in a new window

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

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Cheap Flights from Dublin to Porto (DUB-OPO)

Prices were available within the past 7 days and start at $29 for one-way flights and $67 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Ryanair
Fri, Dec 5 - Fri, Dec 12
DUB
Dublin
OPO
Porto
$67 Roundtrip, found 2 days ago
$67
Roundtrip
found 2 days ago
Select Ryanair flight, departing Fri, Dec 5 from Dublin to Porto, returning Fri, Dec 12, priced at $67 found 2 days ago
Ryanair
Sat, Dec 6 - Fri, Dec 12
DUB
Dublin
OPO
Porto
$70 Roundtrip, found 4 days ago
$70
Roundtrip
found 4 days ago
Select Ryanair flight, departing Sat, Dec 6 from Dublin to Porto, returning Fri, Dec 12, priced at $70 found 4 days ago
Ryanair
Wed, Jan 7 - Wed, Jan 28
DUB
Dublin
OPO
Porto
$74 Roundtrip, found 6 hours ago
$74
Roundtrip
found 6 hours ago
Select Ryanair flight, departing Wed, Jan 7 from Dublin to Porto, returning Wed, Jan 28, priced at $74 found 6 hours ago
Ryanair
Thu, Dec 4 - Fri, Dec 12
DUB
Dublin
OPO
Porto
$76 Roundtrip, found 5 days ago
$76
Roundtrip
found 5 days ago
Select Ryanair flight, departing Thu, Dec 4 from Dublin to Porto, returning Fri, Dec 12, priced at $76 found 5 days ago
Ryanair
Sat, Dec 6 - Fri, Dec 12
DUB
Dublin
OPO
Porto
$79 Roundtrip, found 4 days ago
$79
Roundtrip
found 4 days ago
Select Ryanair flight, departing Sat, Dec 6 from Dublin to Porto, returning Fri, Dec 12, priced at $79 found 4 days ago
Ryanair
Thu, Dec 4 - Wed, Dec 10
DUB
Dublin
OPO
Porto
$82 Roundtrip, found 4 days ago
$82
Roundtrip
found 4 days ago
Select Ryanair flight, departing Thu, Dec 4 from Dublin to Porto, returning Wed, Dec 10, priced at $82 found 4 days ago
Lufthansa
Thu, Nov 27 - Tue, Dec 16
DUB
Dublin
OPO
Porto
$152 Roundtrip, found 6 days ago
$152
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Thu, Nov 27 from Dublin to Porto, returning Tue, Dec 16, priced at $152 found 6 days ago
Swiss International Air Lines
Sat, Dec 6 - Fri, Dec 12
DUB
Dublin
OPO
Porto
$162 Roundtrip, found 4 days ago
$162
Roundtrip
found 4 days ago
Select Swiss International Air Lines flight, departing Sat, Dec 6 from Dublin to Porto, returning Fri, Dec 12, priced at $162 found 4 days ago
Vueling Airlines
Tue, Feb 3 - Wed, Feb 4
DUB
Dublin
OPO
Porto
$173 Roundtrip, found 7 hours ago
$173
Roundtrip
found 7 hours ago
Select Vueling Airlines flight, departing Tue, Feb 3 from Dublin to Porto, returning Wed, Feb 4, priced at $173 found 7 hours ago
Iberia
Wed, Sep 16 - Sat, Sep 19
DUB
Dublin
OPO
Porto
$173 Roundtrip, found 6 days ago
$173
Roundtrip
found 6 days ago
Select Iberia flight, departing Wed, Sep 16 from Dublin to Porto, returning Sat, Sep 19, priced at $173 found 6 days ago

Find the cheapest month to fly from Dublin (DUB) to Porto (OPO)

November is typically the cheapest month to fly

From $78 - $234 per traveler.

Alternative airports near Porto

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Dr. Francisco de Sa Carneiro OPO. Cheapest and Closest option available. Average driving time to city center is 14 minutes. Flights from $201
OPO
Dr. Francisco de Sa Carneiro
CheapestClosest
Average driving time to city center14 min
Flights from $201
Flights from Dublin (DUB) to Porto (OPO)
Origin airport
Dublin
Destination airport
Dr. Francisco de Sa Carneiro
Airlines serving
Air France, British Airways, Iberia, KLM, Lufthansa, Luxair, Ryanair, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Vueling Airlines
Roundtrip price
$66
Distance
849 mi
Average flight time
2 hours 20 mins

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 December. 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 $29 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?
Secure a cheap one-way flight from $29 or cheap return flight from $67 from Dublin Airport (DUB) to Dr. Francisco de Sa Carneiro Airport (OPO) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Dublin Airport (DUB) to Dr. Francisco de Sa Carneiro Airport (OPO)?
December is the cheapest month to fly from DUB to OPO. Planning your trip for the off-season is often the key to landing a great deal.
What is the cheapest airline that flies from Dublin Airport (DUB) to Dr. Francisco de Sa Carneiro Airport (OPO)?
To find the cheapest airline that'll fly you from DUB to OPO, use Expedia's filter tool. Tailor your search based on what matters most to you, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
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.