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Cheap flights from Porto to Northern Ireland from £39

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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — BFS
7 Sep — 14 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Porto to Northern Ireland

Enter your travel dates to find the best prices.

Cheapest flights from Porto to Northern Ireland
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 8 August 2026.

Mon 7/907:15 -
Nonstop2h 30m
Fri 25/917:20 -
Nonstop2h 30m
Deal found 5/8£86
Fri 4/905:55 -
1 stop13h 00m
Mon 7/914:40 -
1 stop9h 15m
Deal found 4/8£88
Fri 25/909:25 -
1 stop13h 35m
Mon 28/914:40 -
1 stop9h 15m
Deal found 4/8£100
Mon 7/907:15 -
Nonstop2h 30m
Fri 25/915:15 -
1 stop8h 35m
Deal found 6/8£107
Fri 25/922:20 -
2 stops22h 55m
Fri 2/1007:35 -
1 stop13h 30m
Deal found 7/8£110
Fri 16/1006:35 -
1 stop12h 05m
Mon 19/1008:45 -
1 stop14h 50m
Deal found 8/8£127
Fri 25/918:40 -
1 stop15h 10m
Mon 28/909:30 -
1 stop11h 10m
Deal found 7/8£140
Fri 2/1018:40 -
1 stop15h 10m
Mon 5/1008:50 -
2 stops22h 40m
Deal found 4/8£149

Find 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 8 August 2026.

Round-trip from

£86

One-way from

£39
Ryanair
  • Ryanair
  • 7/9-25/9
  • Nonstop
  • 5h 00m total
  • Porto to Northern Ireland
Search Deals
Ryanair
  • Ryanair
  • 7/9
  • Nonstop
  • 2h 30m total
  • Porto to Northern Ireland
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Porto to Northern Ireland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 8 August 2026.
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

Cheapest return flight

PortoBelfast

OPO Porto - BFS Belfast Intl

OPOBFS

Porto

Mon 7/9

07:15-09:45

Nonstop2h 30m

Belfast Intl

Fri 25/9

19:20-09:10

1 stop13h 50m

£98

PortoBelfast

OPO Porto - BFS Belfast Intl

OPOBFS

Porto

Fri 25/9

09:25-23:00

1 stop13h 35m

Belfast Intl

Mon 28/9

14:40-23:55

1 stop9h 15m

£102
Fastest return journey

PortoBelfast

OPO Porto - BFS Belfast Intl

OPOBFS

Porto

Fri 16/10

14:25-16:55

Nonstop2h 30m

Belfast Intl

Mon 19/10

10:30-13:00

Nonstop2h 30m

£104

PortoBelfast

OPO Porto - BFS Belfast Intl

OPOBFS

Porto

Mon 7/9

07:15-09:45

Nonstop2h 30m

Belfast Intl

Fri 25/9

15:15-23:50

1 stop8h 35m

£107

PortoBelfast

OPO Porto - BFS Belfast Intl

OPOBFS

Porto

Fri 25/9

09:20-21:00

1 stop11h 40m

Belfast Intl

Mon 28/9

07:00-15:45

1 stop8h 45m

£116

PortoBelfast

OPO Porto - BHD Belfast City

OPOBHD

Porto

Fri 25/9

18:40-09:50

1 stop15h 10m

Belfast City

Mon 28/9

09:30-20:40

1 stop11h 10m

£140

PortoBelfast

OPO Porto - BHD Belfast City

OPOBHD

Porto

Fri 2/10

18:40-09:50

1 stop15h 10m

Belfast City

Mon 5/10

08:50-07:30

2 stops22h 40m

£149

PortoBelfast

OPO Porto - BHD Belfast City

OPOBHD

Porto

Sat 19/9

06:55-13:40

1 stop6h 45m

Belfast City

Tue 22/9

10:20-23:20

1 stop13h 00m

£159

PortoBelfast

OPO Porto - BHD Belfast City

OPOBHD

Porto

Fri 25/9

07:20-14:25

1 stop7h 05m

Belfast City

Fri 2/10

14:05-23:50

1 stop9h 45m

£169

PortoBelfast

OPO Porto - BHD Belfast City

OPOBHD

Porto

Mon 19/10

09:10-09:50

1 stop24h 40m

Belfast City

Mon 26/10

07:40-15:10

1 stop7h 30m

£172

Flights are sorted by cheapest return flights first.

Deals found on 3/8

Showing 1-10 of 31 resultsSorted by cheapest first
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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.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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 8 August 2026.

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.

  • What airport do you fly from for flights from Porto to Northern Ireland?

    Located just 6.8 mi from the city center, Porto (OPO) is the airport most travelers will use when flying to Northern Ireland from Porto.

  • How long is the flight from Porto to Northern Ireland?

    Departing from Porto to Northern Ireland will take you 2h 30m. The distance from Porto to Northern Ireland is about 933 mi. Generally, flights for this route are direct.

  • Can I find deals for flights from Porto to Northern Ireland that include hotel bookings?

    Yes. In addition to deals on Porto to Northern Ireland flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Porto to Northern Ireland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Porto to Northern Ireland.

  • Can I find deals for business class flights from Porto to Northern Ireland?

    Yes. Cheapflights offers flight deals from Porto to Northern Ireland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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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.

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