$73 Cheap Flights from Belfast (BFS) to Porto (OPO)

View $73 flight on Wed, Oct 22, 2025Opens in a new window

Popular airlines from Belfast International Airport (BFS) to Porto Airport (OPO)

Cheap Flights from Belfast to Porto (BFS-OPO)

Prices were available within the past 7 days and start at $73 for one-way flights and $147 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Ryanair
Wed, Oct 22 - Sat, Oct 25
BFS
Belfast
OPO
Porto
$147 Roundtrip, found 4 days ago
$147
Roundtrip
found 4 days ago
Select Ryanair flight, departing Wed, Oct 22 from Belfast to Porto, returning Sat, Oct 25, priced at $147 found 4 days ago
Ryanair
Wed, Oct 15 - Sat, Oct 18
BFS
Belfast
OPO
Porto
$189 Roundtrip, found 3 days ago
$189
Roundtrip
found 3 days ago
Select Ryanair flight, departing Wed, Oct 15 from Belfast to Porto, returning Sat, Oct 18, priced at $189 found 3 days ago
Ryanair
Sat, Oct 18 - Wed, Oct 22
BFS
Belfast
OPO
Porto
$365 Roundtrip, found 4 days ago
$365
Roundtrip
found 4 days ago
Select Ryanair flight, departing Sat, Oct 18 from Belfast to Porto, returning Wed, Oct 22, priced at $365 found 4 days ago

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 $365
OPO
Dr. Francisco de Sa Carneiro
CheapestClosest
Average driving time to city center14 min
Flights from $365

Frequently asked questions

How much does a flight from Belfast Intl. Airport (BFS) to Dr. Francisco de Sa Carneiro Airport (OPO) cost?
Lock in a cheap one-way flight from $73 or cheap return flight from $147 from Belfast Intl. Airport (BFS) 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 Belfast Intl. Airport (BFS) to Dr. Francisco de Sa Carneiro Airport (OPO)?
The cheapest month to fly from BFS to OPO is October, when demand is low. Off-peak season is typically when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Belfast Intl. Airport (BFS) to Dr. Francisco de Sa Carneiro Airport (OPO)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll fly you from BFS to OPO. Then, sort your results by "Price (lowest to highest)" to score a good deal.
How many flights per day from Belfast Intl. Airport (BFS) to Dr. Francisco de Sa Carneiro Airport (OPO)?
Nonstop flights from Belfast Intl. Airport (BFS) to Dr. Francisco de Sa Carneiro Airport (OPO) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BFS to OPO?
Generally you'll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* However, this can vary depending on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Belfast Intl. Airport (BFS) to Dr. Francisco de Sa Carneiro Airport (OPO)?
To arrive at Dr. Francisco de Sa Carneiro Airport (OPO) on schedule, opt for a flight that leaves Belfast Intl. Airport (BFS) 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.
Is it cheaper to buy a plane ticket from Belfast Intl. Airport (BFS) to Dr. Francisco de Sa Carneiro Airport (OPO) last-minute?
Holding off until just before your trip to book your flight from BFS to OPO often results in higher prices. While you might find some last-minute deals, they're not always guaranteed. Be flexible with your travel plans for the best chance of scoring a bargain.
Is it cheaper to book a BFS to OPO flight and hotel package?
You can save money by securing a BFS to OPO flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. Once you've selected your ideal flights and accommodations, consider adding extras like car rentals, tours and activities.
Can I cancel or change the date of my flight from Belfast Intl. Airport (BFS) to Dr. Francisco de Sa Carneiro Airport (OPO)?
Typically, you're able to reschedule or cancel your BFS to OPO flight. However, additional charges may apply, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's guidelines and fees on flight changes, or if you want more details, head to our Customer Service portal.

Travel information

Travel information

Origin airport
Belfast Intl.
Destination airport
Dr. Francisco de Sa Carneiro
Roundtrip price
$147
Distance
934 mi
Average flight time
2 hours 30 mins

Book with confidence

Book with confidence

Belfast to Porto Flights

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

 

The best time to book a flight from Belfast to Porto

Sunday is one of the best days to book for cheap flights from Belfast 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 Belfast 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 Belfast to Porto in 2025. You can also book with separate airlines for your outbound and return journeys, from $73 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 Belfast 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 Belfast 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.

 

Belfast to Porto Flights

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Explore a world of travel with Expedia

*Available to One Key members.