Cheap flights from Porto to Northern Ireland from £48
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/12. Fares are subject to change and may not be available on all flights or dates of travel.
Find flight deals from Porto to Northern Ireland
Cheapest flights from Porto to Northern IrelandExplore the most affordable flight options available from Porto to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 October 2025.
Explore the most affordable flight options available from Porto to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 October 2025.
Cheap flight deals from Porto to Northern Ireland
Keep the following information in mind while searching for Porto to Northern Ireland flight deals. Data was last updated 22 October 2025.
Round-trip from | £120 |
---|---|
One-way from | £48 |
Cheapflights Fare Finder
Use the filters below to find and compare flights from Porto to Northern Ireland that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
PortoBelfast
OPO - BFS
OPOBFS
Porto
Thu 6/11
06:30-17:30
1 stop11h 00m
Belfast Intl
Mon 10/11
10:50-22:50
1 stop12h 00m
PortoBelfast
OPO - BFS
OPOBFS
Porto
Thu 4/12
06:30-09:35
1 stop27h 05m
Belfast Intl
Thu 11/12
12:10-19:35
1 stop7h 25m
PortoBelfast
OPO - BFS
OPOBFS
Porto
Wed 5/11
14:35-11:45
1 stop21h 10m
Belfast Intl
Sun 9/11
15:45-13:35
1 stop21h 50m
PortoBelfast
OPO - BFS
OPOBFS
Porto
Thu 4/12
06:30-17:55
2 stops11h 25m
Belfast Intl
Thu 11/12
12:10-19:35
1 stop7h 25m
PortoBelfast
OPO - BFS
OPOBFS
Porto
Sat 6/12
13:40-18:45
1 stop5h 05m
Belfast Intl
Sat 13/12
17:55-20:35
1 stop26h 40m
PortoBelfast
OPO - BFS
OPOBFS
Porto
Fri 5/12
19:00-07:45
1 stop12h 45m
Belfast Intl
Fri 12/12
08:05-18:15
1 stop10h 10m
PortoBelfast
OPO - BFS
OPOBFS
Porto
Fri 7/11
11:30-08:50
2 stops21h 20m
Belfast Intl
Tue 11/11
20:55-10:40
1 stop13h 45m
PortoBelfast
OPO - BHD
OPOBHD
Porto
Thu 27/11
06:40-16:05
1 stop9h 25m
Belfast City
Sun 30/11
07:00-12:10
1 stop5h 10m
PortoBelfast
OPO - BHD
OPOBHD
Porto
Thu 6/11
06:40-16:05
1 stop9h 25m
Belfast City
Mon 10/11
06:50-13:50
1 stop7h 00m
PortoBelfast
OPO - BHD
OPOBHD
Porto
Wed 5/11
21:55-18:25
2 stops20h 30m
Belfast City
Sun 9/11
08:40-10:50
2 stops26h 10m
Best time to book a flight from Porto to Northern Ireland
Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from Porto with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Porto to Northern Ireland
What is the cheapest time of day to fly from OPO to NIR?
Find hourly flight availability from Porto to Northern Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 22 October 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Porto to Northern Ireland as you normally would.
Related info for your journey
Find useful and relevant information for your journey from Porto to Northern Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes for Porto to Northern Ireland
See prices for flight routes from nearby airports that may be better suited for you.
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Porto to Northern Ireland?
When you search for this flight from Porto to Northern Ireland, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
Why should you use Cheapflights to find cheap flight tickets from Porto to Northern Ireland?
Millions of users choose and trust Cheapflights to book the best flight deals from Porto to Northern Ireland for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
Can Cheapflights find flights from Porto to Northern Ireland with no change fees?
Certainly. Search results for flights to Northern Ireland from Porto shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from Porto to Northern Ireland become cheaper?
Yes! Start tracking prices for Porto to Northern Ireland flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.