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Cheap flights from Portugal to Northern Ireland 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 28/1. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — BFS
30 Nov — 7 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Portugal to Northern Ireland

Enter your travel dates to find the best prices.

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 31 October 2025.

Thu 4/1215:20LIS - BFS
1 stop16h 05mMultiple Airlines
Wed 10/1206:00BFS - LIS
1 stop9h 00mMultiple Airlines
Deal found 30/10£107
Sat 29/1120:30LIS - BFS
1 stop10h 15mMultiple Airlines
Thu 4/1221:00BFS - LIS
1 stop12h 40mMultiple Airlines
Deal found 29/10£110
Thu 11/1206:40OPO - BFS
1 stop9h 30mMultiple Airlines
Mon 15/1210:50BFS - OPO
1 stop12h 00mMultiple Airlines
Deal found 29/10£117
Sat 15/1120:30LIS - BFS
1 stop10h 15mMultiple Airlines
Fri 5/1221:05BFS - LIS
1 stop11h 35mMultiple Airlines
Deal found 29/10£118
Sat 29/1120:30LIS - BHD
1 stop13h 15mMultiple Airlines
Thu 4/1220:00BHD - LIS
1 stop13h 40mMultiple Airlines
Deal found 29/10£124
Fri 7/1121:30LIS - BFS
1 stop10h 35mMultiple Airlines
Mon 10/1122:20BFS - LIS
1 stop24h 15mMultiple Airlines
Deal found 30/10£127
Thu 4/1210:45LIS - BHD
1 stop8h 35measyJet
Wed 10/1216:50BHD - LIS
1 stop17h 20measyJet
Deal found 30/10£143
Thu 11/1206:40OPO - BHD
1 stop9h 25mMultiple Airlines
Mon 15/1210:05BHD - OPO
2 stops12h 45mMultiple Airlines
Deal found 29/10£146
Sat 15/1120:30LIS - BHD
1 stop13h 15mMultiple Airlines
Fri 5/1220:05BHD - LIS
1 stop12h 35mMultiple Airlines
Deal found 29/10£153
Sun 14/1210:00OPO - BFS
1 stop21h 25mMultiple Airlines
Sun 21/1213:00BFS - OPO
1 stop25h 35mMultiple Airlines
Deal found 30/10£166
Wed 26/1119:35LIS - BFS
1 stop12h 45mMultiple Airlines
Mon 1/1210:30BFS - LIS
1 stop9h 35mMultiple Airlines
Deal found 30/10£168
Wed 26/1110:20LIS - BFS
1 stop5h 40mMultiple Airlines
Tue 2/1220:55BFS - LIS
1 stop12h 25mMultiple Airlines
Deal found 30/10£168

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 31 October 2025.

Round-trip from

£107

One-way from

£54

Popular in

July

Cheapest in

November

Average price

£130

Good round-trip deal

£13 or less

Good one-way deal

£13 or less
4/12-10/12
  • 4/12-10/12
  • 2 total stops
  • 25h 05m total
  • Portugal to Northern Ireland
Search Deals
easyJet
  • easyJet
  • 28/1
  • 1 total stop
  • 7h 35m total
  • Portugal to Northern Ireland
Search Deals
Highest demand for flights based on searches. 24% potential increase in price (£22 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 11% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 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

Cheapflights Fare Finder

 
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 31 October 2025.
Use the filters below to find and compare flights from Portugal to Northern Ireland that are best for you.

Fly from

Portugal

Fly to

Northern Ireland

Route

Depart

Return

Price

LisbonBelfast

LIS - BFS

LISBFS

Lisbon Humberto Delgado

Thu 4/12

15:20-07:25

1 stop16h 05m

Belfast Intl

Wed 10/12

06:00-15:00

1 stop9h 00m

£107

LisbonBelfast

LIS - BFS

LISBFS

Lisbon Humberto Delgado

Sat 29/11

20:30-06:45

1 stop10h 15m

Belfast Intl

Thu 4/12

21:00-09:40

1 stop12h 40m

£110

PortoBelfast

OPO - BFS

OPOBFS

Porto

Thu 11/12

06:40-16:10

1 stop9h 30m

Belfast Intl

Mon 15/12

10:50-22:50

1 stop12h 00m

£117

LisbonBelfast

LIS - BFS

LISBFS

Lisbon Humberto Delgado

Sat 15/11

20:30-06:45

1 stop10h 15m

Belfast Intl

Fri 5/12

21:05-08:40

1 stop11h 35m

£118

LisbonBelfast

LIS - BHD

LISBHD

Lisbon Humberto Delgado

Thu 4/12

10:45-19:20

1 stop8h 35m

Belfast City

Wed 10/12

16:50-10:10

1 stop17h 20m

£143

PortoBelfast

OPO - BHD

OPOBHD

Porto

Thu 11/12

06:40-16:05

1 stop9h 25m

Belfast City

Mon 15/12

10:05-22:50

2 stops12h 45m

£146

LisbonBelfast

LIS - BHD

LISBHD

Lisbon Humberto Delgado

Sat 15/11

20:30-09:45

1 stop13h 15m

Belfast City

Fri 5/12

20:05-08:40

1 stop12h 35m

£153

PortoBelfast

OPO - BFS

OPOBFS

Porto

Thu 26/3

10:15-07:25

1 stop21h 10m

Belfast Intl

Wed 8/4

09:55-20:45

1 stop10h 50m

£156

PortoBelfast

OPO - BFS

OPOBFS

Porto

Thu 26/3

10:15-07:25

1 stop21h 10m

Belfast Intl

Mon 6/4

08:40-08:50

1 stop24h 10m

£162

PortoBelfast

OPO - BFS

OPOBFS

Porto

Sun 14/12

10:00-07:25

1 stop21h 25m

Belfast Intl

Sun 21/12

13:00-14:35

1 stop25h 35m

£166

Flights are sorted by cheapest return flights first.

Deals found on 28/10

Showing 1-10 of 54 results
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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, February is the cheapest month in which you can book a flight from Portugal to Northern Ireland (average of £32). Flying from Portugal to Northern Ireland in August is currently the most expensive (average of £324). 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 31 October 2025.

It’s optimal to fly from Portugal to Northern Ireland in the evening. By choosing this option you can save up to 49% on the cost of your flight, compared to a flight in the morning.

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.

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

    Departing from Portugal to Northern Ireland will take you 8h 35m. There are 1104 mi between Portugal and Northern Ireland.

  • 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, February is the cheapest month in which you can book a flight from Portugal to Northern Ireland (average of £32). Flying from Portugal to Northern Ireland in August is currently the most expensive (average of £324). 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

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Alternative routes for Portugal to Northern Ireland

See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

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

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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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