What are the cheapest airlines to fly from Portugal to Northern Ireland one-way?

The cheapest airline one-way is Ryanair, with whom users have recently found tickets for as low as £72. However, be on the lookout for offers from KLM and easyJet, as they are both options that can get you from Portugal to Northern Ireland for a low price.

In terms of precipitation, rainfall in Northern Ireland ranges from 50.0 - 90.0 inches per month. October is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Northern Ireland when rainfall is around 50.0 mm.

If weather is an important factor for your trip to Northern Ireland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

What is the cheapest month to fly from Portugal to Northern Ireland?

February can be a great time to fly to Northern Ireland from Portugal with a flight ticket averaging about £112. Cheapflights users have found deals in the month of February for as cheap as £31. The most expensive prices can be found in the month of September.

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

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

How can I find direct flights from Portugal to Northern Ireland?

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

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

Yes. Cheapflights offers flight deals from Portugal 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.

£72+ Flights from Portugal to Northern Ireland

Cheap flight deals from Portugal to Northern Ireland

Round-trip from	£131
One-way from	£72
Popular in	September
Cheapest in	February
Average price	£167
Good round-trip deal	£126 or less
Good one-way deal	£81 or less

Ryanair
2/8-6/8
Nonstop
5h 00m total
Portugal to Northern Ireland

Search Deals

Ryanair
13/8
Nonstop
2h 30m total
Portugal to Northern Ireland

Search Deals

Highest demand for flights based on searches. 45% potential increase in price (£69 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 13% potential price decrease (£10 potential savings vs. average return price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Price to beat on a round-trip flight from Portugal to Northern Ireland.

Search Deals

Price to beat on a one-way flight from Portugal to Northern Ireland.

Search Deals

Find flight deals from Portugal to Northern Ireland

Cheapest flights from Portugal to Northern Ireland
Explore the most affordable flight options available from Portugal to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 July 2025.

Sat 2/813:30OPO - BFS

Nonstop2h 30mRyanair

Wed 6/811:10BFS - OPO

Nonstop2h 30mRyanair

Deal found 14/7£131

Sat 2/813:30OPO - BFS

Nonstop2h 30mMultiple Airlines

Wed 6/812:15BFS - OPO

1 stop9h 40mMultiple Airlines

Deal found 14/7£157

Wed 27/808:15LIS - BFS

1 stop8h 20mMultiple Airlines

Wed 3/907:25BFS - LIS

1 stop6h 55mMultiple Airlines

Deal found 13/7£206

Fri 28/1112:55LIS - BHD

1 stop5h 55mBritish Airways

Mon 29/1214:40BHD - LIS

1 stop7h 05mBritish Airways

Deal found 14/7£218

Thu 7/807:00LIS - BFS

1 stop14h 05measyJet

Wed 13/809:35BFS - LIS

1 stop9h 45measyJet

Deal found 13/7£232

Sat 2/808:35OPO - BHD

1 stop11h 50mMultiple Airlines

Wed 6/806:55BHD - OPO

2 stops15h 00mMultiple Airlines

Deal found 14/7£234

Tue 29/718:50OPO - BHD

1 stop22h 05mKLM

Sat 2/817:25BHD - OPO

1 stop24h 45mKLM

Deal found 14/7£253

Wed 30/721:35LIS - BHD

1 stop11h 25mMultiple Airlines

Mon 4/818:50BHD - LIS

1 stop14h 30mMultiple Airlines

Deal found 14/7£256

Thu 7/805:00LIS - BHD

1 stop16h 15mKLM

Wed 13/806:30BHD - LIS

1 stop8h 05mKLM

Deal found 13/7£273

Thu 28/811:25LIS - BHD

2 stops22h 25mAer Lingus

Sun 31/810:20BHD - LIS

2 stops11h 15mAer Lingus

Deal found 12/7£505

Sun 21/1212:25OPO - BHD

2 stops8h 05mBritish Airways

Tue 23/1206:35BHD - OPO

2 stops13h 25mBritish Airways

Deal found 14/7£703

Best flights from Portugal to Northern Ireland
Discover carefully curated flight deals from Portugal to Northern Ireland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 July 2025.

Sat 2/813:30OPO - BFS

Nonstop2h 30mRyanair

Wed 6/811:10BFS - OPO

Nonstop2h 30mRyanair

Deal found 14/7£131

Sat 2/813:30OPO - BFS

Nonstop2h 30mMultiple Airlines

Wed 6/812:15BFS - OPO

1 stop9h 40mMultiple Airlines

Deal found 14/7£157

Fri 28/1112:55LIS - BHD

1 stop5h 55mBritish Airways

Mon 29/1214:40BHD - LIS

1 stop7h 05mBritish Airways

Deal found 14/7£218

Thu 7/807:00LIS - BFS

1 stop14h 05measyJet

Wed 13/809:35BFS - LIS

1 stop9h 45measyJet

Deal found 13/7£232

Mon 4/819:30LIS - BHD

1 stop21h 25mKLM

Sun 10/806:30BHD - LIS

1 stop8h 05mKLM

Deal found 14/7£245

Sat 9/820:15LIS - BFS

1 stop11h 45mMultiple Airlines

Sat 16/816:50BFS - LIS

1 stop13h 50mMultiple Airlines

Deal found 12/7£185

Tue 29/718:50OPO - BHD

1 stop22h 05mKLM

Sat 2/817:25BHD - OPO

1 stop24h 45mKLM

Deal found 14/7£253

Sat 2/808:35OPO - BHD

1 stop11h 50mMultiple Airlines

Wed 6/806:55BHD - OPO

2 stops15h 00mMultiple Airlines

Deal found 14/7£234

Wed 30/721:35LIS - BHD

1 stop11h 25mMultiple Airlines

Mon 4/818:50BHD - LIS

1 stop14h 30mMultiple Airlines

Deal found 14/7£256

Sun 21/1212:25OPO - BHD

2 stops8h 05mBritish Airways

Tue 23/1206:35BHD - OPO

2 stops13h 25mBritish Airways

Deal found 14/7£703

Last-minute flights from Portugal to Northern Ireland
Discover last-minute flight deals from Portugal to Northern Ireland. Data last updated 15 July 2025 and is based on user searches.

Sun 20/709:40OPO - BHD

1 stop7h 35mMultiple Airlines

Mon 21/707:55BHD - OPO

2 stops24h 10mMultiple Airlines

Deal found 13/7£369

Tue 29/718:50OPO - BHD

1 stop22h 05mKLM

Sat 2/817:25BHD - OPO

1 stop24h 45mKLM

Deal found 14/7£253

Wed 30/721:35LIS - BHD

1 stop11h 25mMultiple Airlines

Mon 4/818:50BHD - LIS

1 stop14h 30mMultiple Airlines

Deal found 14/7£256

Sat 2/813:30OPO - BFS

Nonstop2h 30mRyanair

Wed 6/811:10BFS - OPO

Nonstop2h 30mRyanair

Deal found 14/7£131

Sat 2/813:30OPO - BFS

Nonstop2h 30mMultiple Airlines

Wed 6/812:15BFS - OPO

1 stop9h 40mMultiple Airlines

Deal found 14/7£157

Sat 2/808:35OPO - BHD

1 stop11h 50mMultiple Airlines

Wed 6/806:55BHD - OPO

2 stops15h 00mMultiple Airlines

Deal found 14/7£234

Thu 7/807:00LIS - BFS

1 stop14h 05measyJet

Wed 13/809:35BFS - LIS

1 stop9h 45measyJet

Deal found 13/7£232

Thu 7/805:00LIS - BHD

1 stop16h 15mKLM

Wed 13/806:30BHD - LIS

1 stop8h 05mKLM

Deal found 13/7£273

Wed 27/808:15LIS - BFS

1 stop8h 20mMultiple Airlines

Wed 3/907:25BFS - LIS

1 stop6h 55mMultiple Airlines

Deal found 13/7£206

Thu 28/811:25LIS - BHD

2 stops22h 25mAer Lingus

Sun 31/810:20BHD - LIS

2 stops11h 15mAer Lingus

Deal found 12/7£505

One-way flights from Portugal to Northern Ireland
Search for one-way flight options from Portugal to Northern Ireland. Find affordable one-way fares based on user searches. Data last updated 15 July 2025.

Wed 13/814:05OPO - BFS

Nonstop2h 30mRyanair

Deal found 15/7£72

Tue 23/1215:30LIS - BHD

1 stop5h 30mKLM

Deal found 14/7£106

Tue 26/809:50LIS - BFS

1 stop12h 05measyJet

Deal found 14/7£116

Sun 10/805:55OPO - BFS

1 stop27h 50mMultiple Airlines

Deal found 14/7£124

Sun 10/806:30OPO - BHD

1 stop25h 40measyJet

Deal found 14/7£127

Tue 26/819:30LIS - BFS

2 stops27h 30mMultiple Airlines

Deal found 14/7£128

Sat 9/807:15OPO - BHD

1 stop7h 25mMultiple Airlines

Deal found 14/7£143

Tue 23/1206:30LIS - BHD

2 stops13h 45mMultiple Airlines

Deal found 13/7£157

Wed 13/808:40OPO - BHD

2 stops8h 50mIberia

Deal found 13/7£314

Wed 13/811:25OPO - BHD

1 stop9h 40mKLM

Deal found 14/7£360

Wed 13/812:20OPO - BHD

2 stops8h 25mBritish Airways

Deal found 14/7£438

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portugal to Northern Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortoBelfast

OPO - BFS

OPOBFS

Porto

Sat 2/8

13:30-16:00

Nonstop2h 30m

Belfast Intl

Wed 6/8

11:10-13:40

Nonstop2h 30m

£131

PortoBelfast

OPO - BFS

OPOBFS

Porto

Sat 2/8

13:30-16:00

Nonstop2h 30m

Belfast Intl

Wed 6/8

12:15-21:55

1 stop9h 40m

£157

LisbonBelfast

LIS - BFS

LISBFS

Lisbon Humberto Delgado

Sat 9/8

20:15-08:00

1 stop11h 45m

Belfast Intl

Sat 16/8

16:50-06:40

1 stop13h 50m

£185

LisbonBelfast

LIS - BHD

LISBHD

Lisbon Humberto Delgado

Fri 28/11

12:55-18:50

1 stop5h 55m

Belfast City

Mon 29/12

14:40-21:45

1 stop7h 05m

£218

LisbonBelfast

LIS - BFS

LISBFS

Lisbon Humberto Delgado

Thu 7/8

07:00-21:05

1 stop14h 05m

Belfast Intl

Wed 13/8

09:35-19:20

1 stop9h 45m

£232

PortoBelfast

OPO - BHD

OPOBHD

Porto

Sat 2/8

08:35-20:25

1 stop11h 50m

Belfast City

Wed 6/8

06:55-21:55

2 stops15h 00m

£234

PortoBelfast

OPO - BHD

OPOBHD

Porto

Tue 29/7

18:50-16:55

1 stop22h 05m

Belfast City

Sat 2/8

17:25-18:10

1 stop24h 45m

£253

LisbonBelfast

LIS - BHD

LISBHD

Lisbon Humberto Delgado

Wed 30/7

21:35-09:00

1 stop11h 25m

Belfast City

Mon 4/8

18:50-09:20

1 stop14h 30m

£256

LisbonBelfast

LIS - BHD

LISBHD

Lisbon Humberto Delgado

Thu 7/8

05:00-21:15

1 stop16h 15m

Belfast City

Wed 13/8

06:30-14:35

1 stop8h 05m

£273

LisbonBelfast

LIS - BHD

LISBHD

Lisbon Humberto Delgado

Thu 28/8

11:25-09:50

2 stops22h 25m

Belfast City

Sun 31/8

10:20-21:35

2 stops11h 15m

£505

Flights are sorted by cheapest return flights first.

Deals found on 15/7

Showing 1-10 of 22 results

Best time to book a flight from Portugal to Northern Ireland

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

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

Currently, January is the cheapest month in which you can book a flight from Portugal to Northern Ireland (average of £67). Flying from Portugal to Northern Ireland in July is currently the most expensive (average of £90). 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.

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

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

Reviews of airlines servicing Northern Ireland

Check out reviews from past customers who have flown with KLM, Iberia, andeasyJet from Portugal to Northern Ireland to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,372 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

KLM

7.8

Good

1,372 reviews

KLM

7.8

Good

1,372 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Iberia

7.0

Good

2,835 reviews

KLM

7.8

Good

1,372 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

easyJet

6.9

Okay

1,818 reviews

KLM

7.8

Good

1,372 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

British Airways

6.6

Okay

7,134 reviews

KLM

7.8

Good

1,372 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Ryanair

6.1

Okay

KLM

7.8

Good

1,372 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

What are the cheapest airlines to fly from Portugal to Northern Ireland one-way?
The cheapest airline one-way is Ryanair, with whom users have recently found tickets for as low as £72. However, be on the lookout for offers from KLM and easyJet, as they are both options that can get you from Portugal to Northern Ireland for a low price.
Can I find deals for flights from Portugal to Northern Ireland that include hotel bookings?
Yes. In addition to deals on Portugal to Northern Ireland flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Portugal to Northern Ireland?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portugal to Northern Ireland.
Can I find deals for business class flights from Portugal to Northern Ireland?
Yes. Cheapflights offers flight deals from Portugal 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.
What is the cheapest month to book a flight from Portugal to Northern Ireland?
Currently, January is the cheapest month in which you can book a flight from Portugal to Northern Ireland (average of £67). Flying from Portugal to Northern Ireland in July is currently the most expensive (average of £90). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Portugal to Northern Ireland

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Stansted to Belfast Intl flights

Charles de Gaulle to Edinburgh flights

Krakow to Heathrow flights

Hamburg to London City flights

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Luton to Edinburgh flights

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Direct flights to United Kingdom

Fly with Cheapflights

How does Cheapflights help users find flights from Portugal to Northern Ireland?

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 Northern Ireland from Portugal today with Cheapflights!

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

Cheapflights simply makes it quick and affordable to book flights from Portugal to Northern Ireland 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 Portugal to Northern Ireland with no change fees?

Yes! Cheapflights helps users easily find flights from Portugal to Northern Ireland with no change fees.

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

Of course! You can now track prices for flights from Portugal to Northern Ireland 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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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Portugal to Northern Ireland from £72

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 13/8. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Portugal to Northern Ireland

Keep the following information in mind while searching for Portugal to Northern Ireland flight deals. Data was last updated 15 July 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Portugal to Northern Ireland

Cheapest flights from Portugal to Northern IrelandExplore the most affordable flight options available from Portugal to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 July 2025.

Explore the most affordable flight options available from Portugal to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 July 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portugal to Northern Ireland that are best for you.

Best time to book a flight from Portugal to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from Portugal with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Portugal to Northern Ireland

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

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

Find hourly flight availability from Portugal 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 15 July 2025.

Reviews of airlines servicing Northern Ireland

Check out reviews from past customers who have flown with KLM, Iberia, andeasyJet from Portugal to Northern Ireland to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Portugal 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 are the cheapest airlines to fly from Portugal to Northern Ireland one-way?

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

How can I find direct flights from Portugal to Northern Ireland?

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

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

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 Portugal 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 Portugal to Northern Ireland?

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

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

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

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Portugal to Northern Ireland
Explore the most affordable flight options available from Portugal to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 July 2025.