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Cheap flights from Northern Ireland to Porto from £49

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 23/10. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — OPO
16 Oct — 23 Oct1
1 adult
1 adult, Economy

Cheap 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 16 September 2025.

Round-trip from

£50

One-way from

£49

Popular in

December

Cheapest in

May

Average price

£124

Good round-trip deal

£105 or less
Ryanair
  • Ryanair
  • 1/10-4/10
  • Nonstop
  • 5h 00m total
  • Northern Ireland to Porto
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easyJet
  • easyJet
  • 23/10
  • 1 total stop
  • 10h 30m total
  • Northern Ireland to Porto
Search Deals
Highest demand for flights based on searches. 36% potential increase in price (£83 potential increase over avg. return price).
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Cheapest flight prices on average. 29% potential price decrease (£34 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Northern Ireland to Porto.
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Find flight deals from Northern Ireland to Porto

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 16 September 2025.

Wed 1/1011:10BFS - OPO
Nonstop2h 30mRyanair
Sat 4/1013:30OPO - BFS
Nonstop2h 30mRyanair
Deal found 15/9£50
Sat 27/910:35BFS - OPO
Nonstop2h 30mRyanair
Sat 4/1013:30OPO - BFS
Nonstop2h 30mRyanair
Deal found 14/9£55
Wed 15/1006:00BFS - OPO
1 stop5h 20mMultiple Airlines
Wed 22/1014:05OPO - BFS
Nonstop2h 30mMultiple Airlines
Deal found 14/9£89
Wed 1/1008:20BFS - OPO
1 stop7h 00mMultiple Airlines
Sat 4/1013:30OPO - BFS
Nonstop2h 30mMultiple Airlines
Deal found 15/9£97
Sat 27/910:35BFS - OPO
Nonstop2h 30mMultiple Airlines
Sat 4/1013:15OPO - BFS
1 stop9h 50mMultiple Airlines
Deal found 14/9£101
Sat 4/1010:35BFS - OPO
Nonstop2h 30mMultiple Airlines
Mon 6/1012:25OPO - BFS
1 stop19h 20mMultiple Airlines
Deal found 14/9£107
Tue 14/1008:40BFS - OPO
1 stop12h 15measyJet
Tue 21/1021:25OPO - BFS
1 stop10h 45measyJet
Deal found 14/9£108
Thu 9/1014:30BHD - OPO
1 stop8h 30mMultiple Airlines
Mon 13/1006:15OPO - BHD
1 stop11h 25mMultiple Airlines
Deal found 14/9£163
Sat 27/906:50BHD - OPO
2 stops15h 45mMultiple Airlines
Sat 4/1006:45OPO - BHD
2 stops9h 45mMultiple Airlines
Deal found 14/9£213
Sat 4/1006:50BHD - OPO
2 stops15h 45mMultiple Airlines
Mon 6/1022:20OPO - BHD
2 stops18h 05mMultiple Airlines
Deal found 14/9£216
Mon 22/908:50BHD - OPO
2 stops23h 15mMultiple Airlines
Mon 29/906:15OPO - BHD
1 stop11h 25mMultiple Airlines
Deal found 15/9£226
Thu 9/1014:30BHD - OPO
1 stop8h 30mMultiple Airlines
Sun 12/1022:25OPO - BHD
2 stops14h 30mMultiple Airlines
Deal found 14/9£232

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 16 September 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

Wed 1/10

11:10-13:40

Nonstop2h 30m

Porto

Sat 4/10

13:30-16:00

Nonstop2h 30m

£50

BelfastPorto

BFS - OPO

BFSOPO

Belfast Intl

Sat 27/9

10:35-13:05

Nonstop2h 30m

Porto

Sat 4/10

13:30-16:00

Nonstop2h 30m

£55

BelfastPorto

BFS - OPO

BFSOPO

Belfast Intl

Wed 15/10

11:10-13:40

Nonstop2h 30m

Porto

Wed 22/10

14:05-16:35

Nonstop2h 30m

£61

BelfastPorto

BFS - OPO

BFSOPO

Belfast Intl

Sat 27/9

10:35-13:05

Nonstop2h 30m

Porto

Sat 4/10

13:15-23:05

1 stop9h 50m

£101

BelfastPorto

BFS - OPO

BFSOPO

Belfast Intl

Tue 14/10

08:40-20:55

1 stop12h 15m

Porto

Tue 21/10

21:25-08:10

1 stop10h 45m

£108

BelfastPorto

BFS - OPO

BFSOPO

Belfast Intl

Wed 15/10

06:00-11:20

1 stop5h 20m

Porto

Wed 22/10

17:45-23:10

1 stop5h 25m

£112

BelfastPorto

BFS - OPO

BFSOPO

Belfast Intl

Thu 30/10

21:05-07:55

1 stop10h 50m

Porto

Thu 6/11

10:15-18:20

1 stop8h 05m

£120

BelfastPorto

BFS - OPO

BFSOPO

Belfast Intl

Wed 1/10

07:25-22:45

2 stops15h 20m

Porto

Sat 4/10

13:30-16:00

Nonstop2h 30m

£120

BelfastPorto

BHD - OPO

BHDOPO

Belfast City

Thu 9/10

18:45-06:45

2 stops12h 00m

Porto

Mon 13/10

06:15-17:40

1 stop11h 25m

£169

BelfastPorto

BHD - OPO

BHDOPO

Belfast City

Sat 27/9

06:50-22:35

2 stops15h 45m

Porto

Sat 4/10

06:45-16:30

2 stops9h 45m

£213

Flights are sorted by cheapest return flights first.

Deals found on 14/9

Showing 1-10 of 33 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 16 September 2025.

When flying from Northern Ireland to Porto, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

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

    For as low as £50, Ryanair can have you in Porto from Northern Ireland in 2h 30m. Northern Ireland and Porto are separated by a distance of 933 mi. Most flights are nonstop.

  • What are the cheapest flights from Northern Ireland to Porto?

    While on average a flight from Northern Ireland to Porto is generally £120, our data shows the cheapest flight currently is £46. When looking at the most popular route, (Belfast Intl - Porto), you can expect to pay £50 for that flight.

  • 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.

  • What is the cheapest month to book a flight from Northern Ireland to Porto?

    Currently, February is the cheapest month in which you can book a flight from Northern Ireland to Porto (average of £66). Flying from Northern Ireland to Porto in August is currently the most expensive (average of £258). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Porto?

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

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Alternative routes for Northern Ireland to Porto

See prices for flight routes from nearby airports that may be better suited for you.
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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 16 September 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£46Average£159FlexibilityNo 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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