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Cheap flights from Portugal to Northern Ireland from £19

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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — BFS
7 May — 14 May1
1 adult
1 adult, Economy, 0 bags

Cheap 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 7 April 2026.

Mon 20/407:15
OPO
-
BFS
Nonstop2h 30m
Multiple Airlines
Tue 21/405:55
BFS
-
OPO
1 stop16h 05m
Multiple Airlines
Deal found 6/4£74
Fri 17/414:25
OPO
-
BFS
Nonstop2h 30m
Ryanair
Mon 20/410:30
BFS
-
OPO
Nonstop2h 30m
Ryanair
Deal found 6/4£78
Fri 8/514:25
OPO
-
BFS
Nonstop2h 30m
Ryanair
Mon 11/510:30
BFS
-
OPO
Nonstop2h 30m
Ryanair
Deal found 3/4£83
Fri 17/415:40
OPO
-
BFS
1 stop28h 10m
Multiple Airlines
Mon 20/410:30
BFS
-
OPO
Nonstop2h 30m
Multiple Airlines
Deal found 6/4£88
Fri 8/521:30
OPO
-
BFS
1 stop13h 15m
Multiple Airlines
Mon 11/518:50
BFS
-
OPO
1 stop14h 10m
Multiple Airlines
Deal found 3/4£93
Fri 1/514:25
OPO
-
BFS
Nonstop2h 30m
Ryanair
Tue 5/520:10
BFS
-
OPO
1 stop18h 15m
Ryanair
Deal found 6/4£105
Wed 10/620:20
LIS
-
BFS
1 stop16h 00m
Multiple Airlines
Sun 14/622:10
BFS
-
LIS
2 stops24h 15m
Multiple Airlines
Deal found 6/4£119
Tue 19/521:40
LIS
-
BFS
2 stops22h 10m
Multiple Airlines
Tue 26/508:50
BFS
-
LIS
2 stops22h 00m
Multiple Airlines
Deal found 4/4£122
Thu 28/522:10
LIS
-
BFS
1 stop9h 40m
Multiple Airlines
Wed 3/607:00
BFS
-
LIS
1 stop12h 55m
Multiple Airlines
Deal found 5/4£123
Mon 20/420:50
OPO
-
BHD
2 stops16h 20m
Multiple Airlines
Tue 21/417:00
BHD
-
OPO
1 stop5h 00m
Multiple Airlines
Deal found 6/4£125
Fri 1/521:40
LIS
-
BFS
1 stop25h 40m
Multiple Airlines
Fri 8/507:35
BFS
-
LIS
1 stop13h 40m
Multiple Airlines
Deal found 3/4£131
Mon 18/522:00
LIS
-
BFS
2 stops14h 15m
Multiple Airlines
Mon 25/518:50
BFS
-
LIS
2 stops27h 15m
Multiple Airlines
Deal found 3/4£135

Find 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 7 April 2026.

Round-trip from

£74

One-way from

£19

Good one-way deal

£67 or less
20/4-21/4
  • 20/4-21/4
  • 1 total stop
  • 18h 35m total
  • Portugal to Northern Ireland
Search Deals
Ryanair
  • Ryanair
  • 1/6
  • Nonstop
  • 2h 30m total
  • 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 7 April 2026.
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

Cheapest return flight
Fastest return journey

PortoBelfast

OPO - BFS

OPOBFS

Porto

Fri 17/4

14:25-16:55

Nonstop2h 30m

Belfast Intl

Mon 20/4

10:30-13:00

Nonstop2h 30m

£78

PortoBelfast

OPO - BFS

OPOBFS

Porto

Fri 8/5

14:25-16:55

Nonstop2h 30m

Belfast Intl

Mon 11/5

10:30-13:00

Nonstop2h 30m

£83

PortoBelfast

OPO - BFS

OPOBFS

Porto

Fri 8/5

21:30-10:45

1 stop13h 15m

Belfast Intl

Mon 11/5

18:50-09:00

1 stop14h 10m

£93

PortoBelfast

OPO - BFS

OPOBFS

Porto

Fri 1/5

14:25-16:55

Nonstop2h 30m

Belfast Intl

Mon 4/5

17:35-23:59

1 stop6h 24m

£110

LisbonBelfast

LIS - BFS

LISBFS

Lisbon Humberto Delgado

Tue 19/5

21:40-19:50

2 stops22h 10m

Belfast Intl

Tue 26/5

08:50-06:50

2 stops22h 00m

£122

PortoBelfast

OPO - BFS

OPOBFS

Porto

Fri 22/5

14:25-16:55

Nonstop2h 30m

Belfast Intl

Fri 29/5

06:15-21:05

1 stop14h 50m

£123

LisbonBelfast

LIS - BFS

LISBFS

Lisbon Humberto Delgado

Sat 20/6

06:00-21:15

1 stop15h 15m

Belfast Intl

Mon 22/6

09:30-20:40

1 stop11h 10m

£128

LisbonBelfast

LIS - BFS

LISBFS

Lisbon Humberto Delgado

Fri 1/5

21:40-23:20

1 stop25h 40m

Belfast Intl

Fri 8/5

07:35-21:15

1 stop13h 40m

£131

LisbonBelfast

LIS - BFS

LISBFS

Lisbon Humberto Delgado

Mon 18/5

22:00-12:15

2 stops14h 15m

Belfast Intl

Mon 25/5

18:50-22:05

2 stops27h 15m

£135

LisbonBelfast

LIS - BFS

LISBFS

Lisbon Humberto Delgado

Thu 28/5

22:10-07:50

1 stop9h 40m

Belfast Intl

Wed 3/6

21:45-19:50

2 stops22h 05m

£135

Flights are sorted by cheapest return flights first.

Deals found on 6/4

Showing 1-10 of 60 resultsSorted by cheapest first
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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 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 7 April 2026.

It’s optimal to fly from Portugal to Northern Ireland in the afternoon. By choosing this option you can save up to 55% on the cost of your flight, compared to a flight at midday.

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 2h 30m. There are 933 mi between Portugal and Northern Ireland. This flight may include one or multiple stops.

  • 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 £13. However, be on the lookout for offers from Jet2 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.

See more FAQs

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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.
Charles de Gaulle to Gatwick flights
Charles de Gaulle to Luton flights
Duesseldorf Intl to Heathrow flights
Orly to Gatwick flights
Frederic Chopin to Heathrow flights
Charles de Gaulle to Edinburgh flights
Beauvais-Tille to Stansted flights
Charles de Gaulle to London City flights
Orly to London City flights
Charles de Gaulle to Heathrow flights
Beauvais-Tille to Luton flights
Amsterdam to Gatwick flights
Frankfurt to Luton flights
Beauvais-Tille to Gatwick flights
Vienna to Gatwick flights
Frankfurt to Heathrow flights
Vienna to Heathrow flights
Bruxelles-National to Gatwick flights
Bruxelles-National to Stansted flights
Vienna to London City flights
Madrid to Heathrow flights
Bruxelles-National to Luton flights
Frederic Chopin to Stansted flights
Berlin to Gatwick flights
Orly to Heathrow flights
Duesseldorf Intl to Stansted flights
Madrid to Gatwick flights
Amsterdam to Stansted flights
Amsterdam to Luton flights
Duesseldorf Intl to Luton flights
Vienna to Stansted flights
Lyon to Gatwick flights
Charles de Gaulle to Manchester flights
Copenhagen to Gatwick flights
Cologne to Gatwick flights
Berlin to London City flights
Frederic Chopin to Gatwick flights
Leonardo da Vinci/Fiumicino to Gatwick flights
Amsterdam to London City flights
Lisbon to Gatwick flights
Marseille to Gatwick flights
Duesseldorf Intl to Gatwick flights
Vienna to Luton flights
Frederic Chopin to London City flights
Barcelona-El Prat to Luton flights
Madrid to London City flights
Bruxelles-National to London City flights
Oslo Gardermoen to Luton flights
Lyon to Luton flights
Beauvais-Tille to Manchester flights

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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