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Cheap flights from Portugal to Northern Ireland from £61

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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — BFS
26 Feb — 5 Mar1
1 adult

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 21 February 2025.

Round-trip from

£66

One-way from

£61

Popular in

September

Cheapest in

February

Average price

£43

Good round-trip deal

£101 or less

Good one-way deal

£49 or less
Ryanair
  • Ryanair
  • 16/4-26/4
  • Nonstop
  • 5h 00m total
  • Portugal to Northern Ireland
Search Deals
5/4
  • 5/4
  • 1 total stop
  • 15h 35m total
  • Portugal to Northern Ireland
Search Deals
Highest demand for flights based on searches. 30% potential increase in price (£44 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 21 February 2025.

Wed 16/414:05OPO - BFS
Nonstop2h 30mRyanair
Sat 26/410:35BFS - OPO
Nonstop2h 30mRyanair
Deal found 19/2£66
Wed 16/414:05OPO - BFS
Nonstop2h 30mMultiple Airlines
Sat 26/414:00BFS - OPO
1 stop7h 25mMultiple Airlines
Deal found 19/2£105
Thu 27/319:35LIS - BFS
1 stop12h 45measyJet
Thu 3/410:15BFS - LIS
1 stop7h 55measyJet
Deal found 20/2£118
Thu 27/322:05LIS - BFS
2 stops21h 25mMultiple Airlines
Thu 3/412:05BFS - LIS
2 stops33h 25mMultiple Airlines
Deal found 20/2£159
Wed 30/406:20LIS - BHD
1 stop7h 25measyJet
Sun 18/507:05BHD - LIS
1 stop12h 55measyJet
Deal found 20/2£170
Fri 7/305:00LIS - BHD
1 stop16h 00mKLM
Sun 9/317:20BHD - LIS
1 stop17h 15mKLM
Deal found 20/2£184
Sat 22/306:10LIS - BHD
1 stop6h 40mMultiple Airlines
Sat 29/308:05BHD - LIS
1 stop7h 00mMultiple Airlines
Deal found 20/2£193
Mon 16/606:15OPO - BHD
2 stops12h 30mMultiple Airlines
Mon 23/609:35BHD - OPO
1 stop6h 45mMultiple Airlines
Deal found 20/2£245
Wed 30/422:15LIS - BHD
2 stops16h 15mAer Lingus
Sun 18/510:20BHD - LIS
2 stops24h 25mAer Lingus
Deal found 20/2£408
Fri 7/318:45LIS - BHD
1 stop15h 45mBritish Airways
Sun 9/312:10BHD - LIS
2 stops11h 15mBritish Airways
Deal found 20/2£431
Mon 16/612:20OPO - BHD
2 stops8h 25mBritish Airways
Mon 23/615:25BHD - OPO
2 stops16h 10mBritish Airways
Deal found 20/2£440

Find flights from Portugal to Northern Ireland within your budget

Customise your flight search to find flights from Portugal 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 21 February 2025.

Fly from

Portugal

Fly to

Northern Ireland

Route

Depart

Return

Price

PortoBelfast

OPO - BFS

OPOBFS

Porto

Wed 16/4

14:05-16:35

Nonstop2h 30m

Belfast Intl

Sat 26/4

10:35-13:05

Nonstop2h 30m

£66

PortoBelfast

OPO - BFS

OPOBFS

Porto

Wed 16/4

14:05-16:35

Nonstop2h 30m

Belfast Intl

Sat 26/4

14:00-21:25

1 stop7h 25m

£105

LisbonBelfast

LIS - BFS

LISBFS

Lisbon Humberto Delgado

Thu 27/3

19:35-08:20

1 stop12h 45m

Belfast Intl

Thu 3/4

10:15-18:10

1 stop7h 55m

£118

LisbonBelfast

LIS - BFS

LISBFS

Lisbon Humberto Delgado

Thu 27/3

22:05-19:30

2 stops21h 25m

Belfast Intl

Thu 3/4

12:05-21:30

2 stops33h 25m

£159

LisbonBelfast

LIS - BHD

LISBHD

Lisbon Humberto Delgado

Wed 30/4

06:20-13:45

1 stop7h 25m

Belfast City

Sun 18/5

07:05-20:00

1 stop12h 55m

£170

LisbonBelfast

LIS - BHD

LISBHD

Lisbon Humberto Delgado

Fri 7/3

05:00-21:00

1 stop16h 00m

Belfast City

Sun 9/3

17:20-10:35

1 stop17h 15m

£184

LisbonBelfast

LIS - BHD

LISBHD

Lisbon Humberto Delgado

Sat 22/3

06:10-12:50

1 stop6h 40m

Belfast City

Sat 29/3

08:05-15:05

1 stop7h 00m

£193

PortoBelfast

OPO - BHD

OPOBHD

Porto

Mon 16/6

06:15-18:45

2 stops12h 30m

Belfast City

Mon 23/6

09:35-16:20

1 stop6h 45m

£245

LisbonBelfast

LIS - BHD

LISBHD

Lisbon Humberto Delgado

Wed 30/4

22:15-14:30

2 stops16h 15m

Belfast City

Sun 18/5

10:20-10:45

2 stops24h 25m

£408

LisbonBelfast

LIS - BHD

LISBHD

Lisbon Humberto Delgado

Fri 7/3

18:45-10:30

1 stop15h 45m

Belfast City

Sun 9/3

12:10-23:25

2 stops11h 15m

£431

Flights are sorted by cheapest return flights first.

Deals found on 20/2

Showing 1-10 of 18 results
1
2

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.

Travel insights for flights from Portugal to Northern Ireland

Get recent, data-driven insights about flights from Portugal to Northern Ireland including ideal travel times, pricing trends, and more.

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?

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 21 February 2025.

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.

Rainfall in Northern Ireland by month

Plan your trip to Northern Ireland by taking into account the average rainfall totals by month.

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.

Temperature in Northern Ireland by month

Plan your trip to Northern Ireland by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Northern Ireland

Get insights into the airlines that provide service to Northern Ireland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Northern Ireland. Reviews last updated 21 February 2025.
Peruse reviews from past customers who have flown with KLM, Aer Lingus and easyJet from Portugal to Northern Ireland to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,331 reviews
Check prices

Entertainment

7.2

Food

7.3

Crew

8.4

Overall

7.8

Comfort

7.7

Boarding

7.8

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

KLM
7.8
Good
1,331 reviews
KLM
7.8
Good
1,331 reviews
Check prices

Entertainment

7.2

Food

7.3

Crew

8.4

Overall

7.8

Comfort

7.7

Boarding

7.8

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Aer Lingus
7.0
Good
1,070 reviews
KLM
7.8
Good
1,331 reviews
Check prices

Entertainment

7.2

Food

7.3

Crew

8.4

Overall

7.8

Comfort

7.7

Boarding

7.8

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

easyJet
6.9
Okay
1,816 reviews
KLM
7.8
Good
1,331 reviews
Check prices

Entertainment

7.2

Food

7.3

Crew

8.4

Overall

7.8

Comfort

7.7

Boarding

7.8

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

British Airways
6.6
Okay
6,762 reviews
KLM
7.8
Good
1,331 reviews
Check prices

Entertainment

7.2

Food

7.3

Crew

8.4

Overall

7.8

Comfort

7.7

Boarding

7.8

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Ryanair
6.1
Okay
KLM
7.8
Good
1,331 reviews
Check prices

Entertainment

7.2

Food

7.3

Crew

8.4

Overall

7.8

Comfort

7.7

Boarding

7.8

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

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.

  • 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

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