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Cheap flights from Northern Ireland to Porto from £45

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 25/1. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — OPO
30 Nov — 7 Dec1
1 adult
1 adult, Economy, 0 bags

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 31 October 2025.

Round-trip from

£115

One-way from

£45

Popular in

December

Cheapest in

May

Average price

£111
4/12-8/12
  • 4/12-8/12
  • 2 total stops
  • 14h 40m total
  • Northern Ireland to Porto
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easyJet
  • easyJet
  • 25/1
  • 1 total stop
  • 11h 55m total
  • Northern Ireland to Porto
Search Deals
Highest demand for flights based on searches. 35% potential increase in price (£88 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 29% potential price decrease (£36 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
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Find 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 31 October 2025.

Thu 4/1212:10BFS - OPO
1 stop7h 25mMultiple Airlines
Mon 8/1214:40OPO - BFS
1 stop7h 15mMultiple Airlines
Deal found 29/10£115
Thu 11/1212:10BFS - OPO
1 stop7h 25mMultiple Airlines
Thu 18/1216:55OPO - BFS
1 stop14h 30mMultiple Airlines
Deal found 28/10£118
Thu 27/1106:15BFS - OPO
1 stop5h 10mMultiple Airlines
Thu 4/1206:30OPO - BFS
1 stop27h 05mMultiple Airlines
Deal found 29/10£136
Fri 12/1221:20BFS - OPO
1 stop12h 50mMultiple Airlines
Fri 19/1221:10OPO - BFS
1 stop10h 55mMultiple Airlines
Deal found 28/10£145
Tue 25/1120:55BFS - OPO
2 stops20h 35mMultiple Airlines
Sat 29/1113:40OPO - BFS
1 stop5h 05mMultiple Airlines
Deal found 28/10£159
Thu 27/1119:35BHD - OPO
1 stop12h 50mMultiple Airlines
Thu 4/1206:40OPO - BHD
1 stop7h 10mMultiple Airlines
Deal found 29/10£172
Mon 22/1217:20BHD - OPO
1 stop17h 10mKLM
Mon 29/1206:30OPO - BHD
1 stop14h 30mKLM
Deal found 30/10£464
Mon 22/1206:35BHD - OPO
2 stops9h 25mMultiple Airlines
Mon 29/1212:25OPO - BHD
2 stops7h 50mMultiple Airlines
Deal found 30/10£777

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 31 October 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

Thu 4/12

12:10-19:35

1 stop7h 25m

Porto

Mon 8/12

14:40-21:55

1 stop7h 15m

£115

BelfastPorto

BFS - OPO

BFSOPO

Belfast Intl

Thu 11/12

12:10-19:35

1 stop7h 25m

Porto

Thu 18/12

16:55-07:25

1 stop14h 30m

£118

BelfastPorto

BFS - OPO

BFSOPO

Belfast Intl

Sun 15/3

08:55-15:40

1 stop6h 45m

Porto

Tue 17/3

12:35-21:10

1 stop8h 35m

£129

BelfastPorto

BFS - OPO

BFSOPO

Belfast Intl

Thu 27/11

06:15-11:25

1 stop5h 10m

Porto

Thu 4/12

06:30-09:35

1 stop27h 05m

£136

BelfastPorto

BFS - OPO

BFSOPO

Belfast Intl

Fri 12/12

21:20-10:10

1 stop12h 50m

Porto

Fri 19/12

21:10-08:05

1 stop10h 55m

£145

BelfastPorto

BFS - OPO

BFSOPO

Belfast Intl

Sun 15/3

08:55-15:40

1 stop6h 45m

Porto

Tue 17/3

08:45-11:35

2 stops26h 50m

£156

BelfastPorto

BFS - OPO

BFSOPO

Belfast Intl

Tue 25/11

20:55-17:30

2 stops20h 35m

Porto

Sat 29/11

13:40-18:45

1 stop5h 05m

£159

BelfastPorto

BHD - OPO

BHDOPO

Belfast City

Thu 27/11

19:35-10:45

1 stop15h 10m

Porto

Thu 4/12

06:30-20:55

2 stops14h 25m

£179

BelfastPorto

BHD - OPO

BHDOPO

Belfast City

Wed 1/4

11:20-15:40

1 stop4h 20m

Porto

Sat 11/4

08:35-14:40

1 stop6h 05m

£272

BelfastPorto

BHD - OPO

BHDOPO

Belfast City

Fri 3/4

17:25-10:40

1 stop17h 15m

Porto

Sun 12/4

05:00-21:20

1 stop16h 20m

£275

Flights are sorted by cheapest return flights first.

Deals found on 28/10

Showing 1-10 of 37 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 31 October 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.

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

    For as low as £129, easyJet can have you in Porto from Northern Ireland in 6h 45m. Northern Ireland and Porto are separated by a distance of 933 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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
Coimbra
Guimarães
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 31 October 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£48Average£164FlexibilityNo 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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