Cheap Flights from Porto to Belfast International

Travellers and cabin class

Compare Porto to Belfast International flight deals

Find the cheapest month or even day of the year to fly to Belfast International

Book the best Belfast International fare with no extra fees

Flight deals from Porto to Belfast International

Looking for a cheap last-minute deal or the best return flight from Porto to Belfast International? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Porto to Belfast International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Porto to Belfast International flights are currently cheapest in June.

Direct flights from Porto to Belfast International

Porto to Belfast International: Alternative routes

Compare routes from Porto to Belfast below. You may find an airport to fly into that's cheaper, faster, or easier than Belfast International.

Porto to Belfast: Flight information

The things to know before you go.
Cheapest flight foundR 603
Cheapest month to flyJune
Average flight time2 hrs, 30 mins
Most popular airlineRyanair UK Ltd.
Average flights per week2

Finding cheap flights from Porto to Belfast International: Frequently asked questions

The best price we found for a return flight from Porto to Belfast International is R 1,526. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
2 hours and 30 minutes is the average flight time from Porto to Belfast International.
Ryanair UK Ltd. flies direct from Porto to Belfast International.
As of June 2025, there are 2 flights per week flying from Porto to Belfast International.
The cheapest month to fly from Porto to Belfast International is usually June 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Porto Airport to Belfast International Airport on Saturday, 12 July 2025.
Yes – the average flight time is 2 hours and 30 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Belfast International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Belfast is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Ryanair offers the cheapest flight tickets to Belfast International.

Flying from Porto Airport (OPO) to Belfast International Airport (BFS): what you need to know

  • Around 2 hours 30 minutes is how long you can expect to be travelling on a direct flight from Porto Airport to Belfast International Airport.

  • Porto and Belfast share the same timezone, UTC+0.

  • For a stress-free journey, turn up at the airport two hours ahead of international flights and an hour before domestic departures. This way, you'll have plenty of time to catch your OPO to BFS flight.

  • Flying during a peak month such as August? Public holidays and other popular seasons can result in longer queues and delays at check-in and security. Play things extra safe and arrive up to four hours before an international flight and two hours before domestic departures.

  • Ryanair is your ticket to exploring Belfast (and maybe even some other great corners of United Kingdom!). Check out the direct flights from Porto Airport to Belfast International Airport offered by this carrier.

  • The airline that serves the most passengers on this route is Ryanair.

  • If you want to break up your flight, just deselect 'Direct flights only' when searching for your ticket from Porto Airport to Belfast International Airport. These are the top stopovers between OPO and BFS:

    • Glasgow International Airport

    • London Gatwick Airport

    • London Luton Airport

How to find the cheapest flights from Porto Airport (OPO) to Belfast International Airport (BFS)

  • The lowest price we've found for a one-way Porto Airport to Belfast International Airport flight is R 603. A round-trip ticket is currently R 1,526. Depending on the availability when you book, these fares can change.

  • Book six months before your departure date. After crunching the numbers on our calendar, this is how far you should book ahead to secure cheap tickets from OPO to BFS.

  • The cheapest month for flights from Porto Airport to Belfast International Airport is May. Use the 'Whole month' tool to find the lowest airfares if you have a flexible schedule.

  • Cut down on the time spent looking for cheap flights from OPO to BFS by setting up a Price Alert. We'll send you an email or notification through the app when a lower fare pops up.

  • Find the ideal flight for you with the help of the filters. To see the 'Best,' 'Fastest' or 'Cheapest' flights from Porto Airport to Belfast International Airport, use the 'Sort by' function. You can also filter results by airline, departure and arrival times, and journey duration.

Handy information about Porto Airport (OPO)

  • Of all flights leaving Porto Airport, 74.49% arrive on time at their destination.

  • Central Porto to Porto Airport is approximately 16 kilometres. Depending on traffic, it'll take you about 20 minutes to get there if you're ride-sharing, catching a cab or driving.

  • Planning to catch public transport? Expect a journey time of around 50 minutes.

  • Need a convenient hotel close to OPO? If you've booked an early flight from Porto Airport to Belfast International Airport, these accommodation options will have you moments from your departure lounge:

Arriving at Belfast International Airport (BFS)

Getting from Belfast International Airport (BFS) to central Belfast

  • Belfast International Airport to central Belfast has a drive time of about 30 minutes. It's approximately 32 kilometres away.

  • Travelling by public transport will take you around 2 hours.

When to fly to Belfast International Airport (BFS)

  • August is the busiest month for flights from Porto Airport to Belfast International Airport. To avoid the crowds, go to Belfast in January.

  • The warmest month in Belfast is July, with temperatures ranging between 10ºC (50ºF) and 19ºC (66ºF). Lock in your flights from Porto Airport to Belfast International Airport in this month if this is the kind of weather you like.

  • January has average temperatures of between 1ºC (34ºF) and 8ºC (46ºF). Look for cheap tickets from OPO to BFS sometime around then if you like travelling in cooler conditions.

Explore more of United Kingdom

  • You've done Belfast, now it's time to explore other corners of United Kingdom. Journey around 354 kilometres south-east to Birmingham to tick off its leading attractions. From Cadbury World to The Library of Birmingham and National Sea Life Centre, you'll have a full itinerary ahead.

  • Around 418 kilometres south-east of Belfast, Bristol is another favourite stop in United Kingdom. Experience this destination's highlights firsthand at Clifton Suspension Bridge, Cabot Tower and Brandon Hill Nature Park.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.