$229 Cheap Flights from Cardiff (CWL) to Porto (OPO)

View $229 flight on Wed, Nov 19, 2025Opens in a new window

Popular airlines from Cardiff International Airport (CWL) to Porto Airport (OPO)

Cheap Flights from Cardiff to Porto (CWL-OPO)

Prices were available within the past 7 days and start at $229 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Cardiff Intl. Airport (CWL) to Dr. Francisco de Sa Carneiro Airport (OPO) cost?
Lock in a cheap one-way flight from $229 or cheap return flight from Cardiff Intl. Airport (CWL) 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 deals on this route.
What is the cheapest month to fly from Cardiff Intl. Airport (CWL) to Dr. Francisco de Sa Carneiro Airport (OPO)?
Planning your trip for can help you save, as it's the cheapest month for flights between CWL and OPO. You'll usually find the lowest prices during the off-season.
Which airlines fly direct from Cardiff Intl. Airport (CWL) to Dr. Francisco de Sa Carneiro Airport (OPO)?
While Cardiff (CWL-Cardiff Intl.) has no direct flights to Dr. Francisco de Sa Carneiro Airport (OPO), other airports have nonstop routes. Traveling from Bristol Intl. Airport (BRS) will get you to Porto without any detours.
What is the cheapest airline that flies from Cardiff Intl. Airport (CWL) to Dr. Francisco de Sa Carneiro Airport (OPO)?
Use the filter tool on Expedia to compare different airlines and find the most affordable carrier that'll take you from CWL to OPO. Then, sort your results by "Price (lowest to highest)" to score the best deal available.
How many flights per day from Cardiff Intl. Airport (CWL) to Dr. Francisco de Sa Carneiro Airport (OPO)?
Nonstop flights from Cardiff Intl. Airport (CWL) to Dr. Francisco de Sa Carneiro Airport (OPO) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from CWL to OPO?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Cardiff Intl. Airport (CWL) to Dr. Francisco de Sa Carneiro Airport (OPO)?
To avoid potential delays on the Cardiff Intl. Airport (CWL) to Dr. Francisco de Sa Carneiro Airport (OPO) route, fly before 3 PM. Departures after this time have a 22% higher chance of cancellation.**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.
Is it cheaper to buy a plane ticket from Cardiff Intl. Airport (CWL) to Dr. Francisco de Sa Carneiro Airport (OPO) last-minute?
Last-minute fares from CWL to OPO are typically more expensive. For the lowest rates, start searching for flights as early as possible. That being said, if you can play around with your travel dates, you may find a cheap ticket right before your trip.
Is it cheaper to book a CWL to OPO flight and hotel package?
Securing a CWL to OPO flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Pick from our wide range of accommodations and then add activities, flights and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Cardiff Intl. Airport (CWL) to Dr. Francisco de Sa Carneiro Airport (OPO)?
Typically, it's possible to reschedule or cancel your CWL to OPO flight. However, for bookings made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Travel information

Origin airport
Cardiff Intl.
Destination airport
Dr. Francisco de Sa Carneiro
Distance
746 mi

Book with confidence

Book with confidence

Cardiff to Porto Flights

The cheapest times to fly from Cardiff 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 Cardiff to Porto are during the month of . You can find some of the cheapest flights from Cardiff to Porto with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Cardiff to Porto

Sunday is one of the best days to book for cheap flights from Cardiff 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 Cardiff 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 Cardiff to Porto in 2025. You can also book with separate airlines for your outbound and return journeys, from $229 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 Cardiff 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 Cardiff 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.

 

Cardiff to Porto Flights

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*Available to One Key members.