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Cheap flights from Northern Ireland to Porto from £54

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 9/3. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — OPO
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Northern Ireland to Porto

Enter your travel dates to find the best prices.

Cheapest flights from Northern Ireland to Porto
Explore the most affordable flight options available from Northern Ireland to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 December 2025.

Mon 22/1217:20BHD - OPO
1 stop17h 10mKLM
Mon 29/1206:30OPO - BHD
1 stop14h 30mKLM
Deal found 11/12£358
Mon 22/1206:35BHD - OPO
2 stops9h 25mMultiple Airlines
Mon 29/1212:25OPO - BHD
2 stops7h 50mMultiple Airlines
Deal found 10/12£846

Find flight deals from Northern Ireland to Porto

Keep the following information in mind while searching for Northern Ireland to Porto flight deals. Data was last updated 12 December 2025.

Round-trip from

£110

One-way from

£54

Popular in

August

Cheapest in

May
5/1-9/1
  • 5/1-9/1
  • 2 total stops
  • 16h 35m total
  • Northern Ireland to Porto
Search Deals
easyJet
  • easyJet
  • 9/3
  • 1 total stop
  • 5h 45m total
  • Northern Ireland to Porto
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£24 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£6 potential savings vs. average return price).
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Northern Ireland to Porto 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 12 December 2025.
Use the filters below to find and compare flights from Northern Ireland to Porto that are best for you.

Fly from

Northern Ireland

Fly to

Porto

Route

Depart

Return

Price

BelfastPorto

BFS - OPO

BFSOPO

Belfast Intl

Mon 5/1

06:55-13:35

1 stop6h 40m

Porto

Fri 9/1

11:10-21:05

1 stop9h 55m

£110

BelfastPorto

BHD - OPO

BHDOPO

Belfast City

Sat 24/1

09:50-18:55

1 stop9h 05m

Porto

Sat 31/1

08:20-08:10

2 stops23h 50m

£131

BelfastPorto

BFS - OPO

BFSOPO

Belfast Intl

Mon 6/4

08:40-20:40

1 stop12h 00m

Porto

Fri 10/4

07:25-16:15

1 stop8h 50m

£200

BelfastPorto

BFS - OPO

BFSOPO

Belfast Intl

Mon 6/4

10:30-13:00

Nonstop2h 30m

Porto

Fri 10/4

14:25-16:55

Nonstop2h 30m

£228

BelfastPorto

BHD - OPO

BHDOPO

Belfast City

Mon 6/4

09:30-20:40

1 stop11h 10m

Porto

Fri 10/4

22:00-20:30

2 stops22h 30m

£233

BelfastPorto

BHD - OPO

BHDOPO

Belfast City

Fri 27/2

17:20-10:30

1 stop17h 10m

Porto

Mon 2/3

05:00-21:00

1 stop16h 00m

£249

BelfastPorto

BHD - OPO

BHDOPO

Belfast City

Fri 6/3

17:20-10:30

1 stop17h 10m

Porto

Mon 9/3

05:00-21:00

1 stop16h 00m

£287

BelfastPorto

BHD - OPO

BHDOPO

Belfast City

Mon 22/12

17:20-10:30

1 stop17h 10m

Porto

Mon 29/12

06:30-21:00

1 stop14h 30m

£358

BelfastPorto

BHD - OPO

BHDOPO

Belfast City

Sat 23/5

17:30-10:55

1 stop17h 25m

Porto

Wed 3/6

19:00-09:20

1 stop14h 20m

£370

BelfastPorto

BFS - OPO

BFSOPO

Belfast Intl

Mon 9/3

06:30-12:15

1 stop5h 45m

£54

Flights are sorted by cheapest return flights first.

Deals found on 10/12

Showing 1-10 of 26 results
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Best time to book a flight from Northern Ireland to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Northern Ireland 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 Northern Ireland to Porto

What is the cheapest time of day to fly from NIR to OPO?

Find hourly flight availability from Northern Ireland to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 December 2025.

One of the essential ways to save on airfare from Northern Ireland to Porto is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at midday could potentially save you up to 83% on airfare.

Related info for your journey

Find useful and relevant information for your journey from Northern Ireland to Porto. 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 into for flights to Porto from Northern Ireland?

    Porto (OPO), located 6.8 mi from the city center, is the airport you fly into when you book flights from Northern Ireland to Porto.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Northern Ireland to Porto 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

Travelling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Santa Maria da Feira
Guimarães
Coimbra
Chaves
Viseu
Vila Nova de Gaia
Aveiro

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Alternative routes for Northern Ireland to Porto

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Top airline flying from Northern Ireland to Porto

Discover the top airline that operate flights from Northern Ireland to Porto. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 12 December 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£47Average£162FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights

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 Northern Ireland to Porto?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Porto from Northern Ireland today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Northern Ireland to Porto?

Cheapflights simply makes it quick and affordable to book flights from Northern Ireland to Porto by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Northern Ireland to Porto with no change fees?

Yes, we can. To see specific flights from Northern Ireland to Porto with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Northern Ireland to Porto become cheaper?

Of course! You can now track prices for flights from Northern Ireland to Porto and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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