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Cheap flights from Portugal to Northern Ireland from £48

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 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — BFS
6 Dec — 13 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 6 November 2025.

Wed 3/1219:00LIS - BFS
1 stop13h 20measyJet
Wed 10/1208:50BFS - LIS
1 stop9h 10measyJet
Deal found 5/11£100
Tue 2/1220:15LIS - BFS
1 stop12h 05measyJet
Tue 9/1220:55BFS - LIS
1 stop13h 30measyJet
Deal found 4/11£101
Tue 2/1221:05LIS - BFS
1 stop12h 05mMultiple Airlines
Tue 9/1218:25BFS - LIS
1 stop14h 55mMultiple Airlines
Deal found 4/11£105
Wed 3/1217:40LIS - BFS
1 stop15h 30mMultiple Airlines
Wed 10/1206:00BFS - LIS
1 stop11h 15mMultiple Airlines
Deal found 5/11£109
Thu 4/1215:20LIS - BFS
1 stop7h 30mMultiple Airlines
Wed 10/1208:20BFS - LIS
1 stop11h 20mMultiple Airlines
Deal found 4/11£110
Tue 9/1219:40OPO - BFS
1 stop15h 05mMultiple Airlines
Thu 11/1212:10BFS - OPO
1 stop7h 25mMultiple Airlines
Deal found 4/11£115
Sat 15/1108:20OPO - BFS
1 stop14h 15mMultiple Airlines
Mon 17/1122:20BFS - OPO
1 stop10h 20mMultiple Airlines
Deal found 3/11£126
Sat 13/1213:40OPO - BFS
1 stop5h 05mMultiple Airlines
Sun 14/1223:05BFS - OPO
1 stop10h 10mMultiple Airlines
Deal found 5/11£128
Wed 3/1210:20LIS - BHD
1 stop6h 30mMultiple Airlines
Wed 10/1207:00BHD - LIS
1 stop12h 40mMultiple Airlines
Deal found 5/11£133
Fri 28/1121:30LIS - BFS
1 stop10h 35mMultiple Airlines
Mon 1/1218:25BFS - LIS
1 stop14h 20mMultiple Airlines
Deal found 4/11£140
Thu 4/1210:45LIS - BHD
1 stop8h 35measyJet
Wed 10/1216:50BHD - LIS
1 stop17h 20measyJet
Deal found 4/11£142
Fri 28/1112:10OPO - BFS
2 stops20h 40mMultiple Airlines
Sat 29/1123:10BFS - OPO
1 stop9h 25mMultiple Airlines
Deal found 5/11£150

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 6 November 2025.

Round-trip from

£100

One-way from

£48

Popular in

July

Cheapest in

November

Average price

£48

Good round-trip deal

£13 or less

Good one-way deal

£13 or less
easyJet
  • easyJet
  • 3/12-10/12
  • 2 total stops
  • 22h 30m total
  • Portugal to Northern Ireland
Search Deals
easyJet
  • easyJet
  • 4/2
  • 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 November 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 6 November 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

Wed 3/12

19:00-08:20

1 stop13h 20m

Belfast Intl

Wed 10/12

08:50-18:00

1 stop9h 10m

£100

LisbonBelfast

LIS - BFS

LISBFS

Lisbon Humberto Delgado

Tue 2/12

20:15-08:20

1 stop12h 05m

Belfast Intl

Tue 9/12

20:55-10:25

1 stop13h 30m

£101

LisbonBelfast

LIS - BFS

LISBFS

Lisbon Humberto Delgado

Tue 2/12

21:05-09:10

1 stop12h 05m

Belfast Intl

Tue 9/12

18:25-09:20

1 stop14h 55m

£105

LisbonBelfast

LIS - BFS

LISBFS

Lisbon Humberto Delgado

Wed 3/12

17:40-09:10

1 stop15h 30m

Belfast Intl

Wed 10/12

06:00-17:15

1 stop11h 15m

£109

LisbonBelfast

LIS - BFS

LISBFS

Lisbon Humberto Delgado

Thu 4/12

15:20-22:50

1 stop7h 30m

Belfast Intl

Wed 10/12

08:20-19:40

1 stop11h 20m

£110

PortoBelfast

OPO - BFS

OPOBFS

Porto

Tue 9/12

19:40-10:45

1 stop15h 05m

Belfast Intl

Thu 11/12

12:10-19:35

1 stop7h 25m

£115

PortoBelfast

OPO - BFS

OPOBFS

Porto

Sat 15/11

08:20-22:35

1 stop14h 15m

Belfast Intl

Mon 17/11

22:20-08:40

1 stop10h 20m

£126

PortoBelfast

OPO - BFS

OPOBFS

Porto

Sat 13/12

13:40-18:45

1 stop5h 05m

Belfast Intl

Sun 14/12

23:05-09:15

1 stop10h 10m

£128

LisbonBelfast

LIS - BHD

LISBHD

Lisbon Humberto Delgado

Wed 3/12

10:20-16:50

1 stop6h 30m

Belfast City

Wed 10/12

07:00-19:40

1 stop12h 40m

£133

LisbonBelfast

LIS - BFS

LISBFS

Lisbon Humberto Delgado

Fri 28/11

21:30-08:05

1 stop10h 35m

Belfast Intl

Mon 1/12

18:25-08:45

1 stop14h 20m

£140

Flights are sorted by cheapest return flights first.

Deals found on 5/11

Showing 1-10 of 41 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 £328). 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 6 November 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 13h 20m. There are 1105 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 £328). 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?

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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