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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 24/9. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — BFS
3 Sep — 10 Sep1
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 29 August 2025.

Round-trip from

£78

One-way from

£61

Popular in

September

Cheapest in

February

Good round-trip deal

£75 or less

Good one-way deal

£99 or less
Ryanair
  • Ryanair
  • 13/9-17/9
  • Nonstop
  • 5h 00m total
  • Portugal to Northern Ireland
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easyJet
  • easyJet
  • 24/9
  • 1 total stop
  • 12h 15m total
  • Portugal to Northern Ireland
Search Deals
Highest demand for flights based on searches. 44% potential increase in price (£67 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 12% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Price to beat on a round-trip flight from Portugal to Northern Ireland.
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Price to beat on a one-way flight from Portugal to Northern Ireland.
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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 29 August 2025.

Sat 13/913:30OPO - BFS
Nonstop2h 30mRyanair
Wed 17/911:10BFS - OPO
Nonstop2h 30mRyanair
Deal found 27/8£78
Sat 11/1013:30OPO - BFS
Nonstop2h 30mRyanair
Sat 18/1010:35BFS - OPO
Nonstop2h 30mRyanair
Deal found 27/8£101
Thu 16/1007:00LIS - BFS
1 stop8h 15measyJet
Wed 22/1009:35BFS - LIS
1 stop9h 25measyJet
Deal found 28/8£104
Fri 10/1021:35LIS - BFS
1 stop10h 50measyJet
Mon 13/1010:00BFS - LIS
1 stop10h 55measyJet
Deal found 27/8£105
Sat 11/1021:50OPO - BFS
1 stop10h 10mMultiple Airlines
Sat 18/1010:35BFS - OPO
Nonstop2h 30mMultiple Airlines
Deal found 27/8£107
Sat 13/913:30OPO - BFS
Nonstop2h 30mMultiple Airlines
Wed 17/921:45BFS - OPO
1 stop24h 05mMultiple Airlines
Deal found 27/8£110
Thu 16/1022:10LIS - BFS
2 stops18h 30mMultiple Airlines
Wed 22/1009:35BFS - LIS
1 stop11h 55mMultiple Airlines
Deal found 28/8£115
Sat 27/913:30OPO - BFS
Nonstop2h 30mRyanair
Wed 1/1011:10BFS - OPO
Nonstop2h 30mRyanair
Deal found 27/8£126
Sat 27/914:20OPO - BFS
2 stops17h 40mMultiple Airlines
Wed 1/1011:10BFS - OPO
Nonstop2h 30mMultiple Airlines
Deal found 27/8£127
Fri 10/1007:55LIS - BFS
1 stop10h 20mMultiple Airlines
Mon 13/1021:55BFS - LIS
1 stop11h 15mMultiple Airlines
Deal found 28/8£129
Sun 12/1021:35LIS - BFS
2 stops14h 35mMultiple Airlines
Sun 19/1017:30BFS - LIS
1 stop15h 40mMultiple Airlines
Deal found 28/8£141
Thu 16/1007:00LIS - BHD
1 stop12h 35measyJet
Wed 22/1014:20BHD - LIS
1 stop7h 55measyJet
Deal found 26/8£157

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 29 August 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

PortoBelfast

OPO - BFS

OPOBFS

Porto

Sat 13/9

13:30-16:00

Nonstop2h 30m

Belfast Intl

Wed 17/9

11:10-13:40

Nonstop2h 30m

£78

PortoBelfast

OPO - BFS

OPOBFS

Porto

Sat 11/10

13:30-16:00

Nonstop2h 30m

Belfast Intl

Sat 18/10

10:35-13:05

Nonstop2h 30m

£101

LisbonBelfast

LIS - BFS

LISBFS

Lisbon Humberto Delgado

Thu 16/10

07:00-15:15

1 stop8h 15m

Belfast Intl

Wed 22/10

09:35-19:00

1 stop9h 25m

£104

LisbonBelfast

LIS - BFS

LISBFS

Lisbon Humberto Delgado

Fri 10/10

21:35-08:25

1 stop10h 50m

Belfast Intl

Mon 13/10

10:00-20:55

1 stop10h 55m

£105

PortoBelfast

OPO - BFS

OPOBFS

Porto

Sat 11/10

21:50-08:00

1 stop10h 10m

Belfast Intl

Sat 18/10

10:35-13:05

Nonstop2h 30m

£107

PortoBelfast

OPO - BFS

OPOBFS

Porto

Sat 13/9

13:30-16:00

Nonstop2h 30m

Belfast Intl

Wed 17/9

21:45-21:50

1 stop24h 05m

£110

LisbonBelfast

LIS - BFS

LISBFS

Lisbon Humberto Delgado

Thu 16/10

22:10-16:40

2 stops18h 30m

Belfast Intl

Wed 22/10

09:35-21:30

1 stop11h 55m

£115

PortoBelfast

OPO - BFS

OPOBFS

Porto

Sat 27/9

13:30-16:00

Nonstop2h 30m

Belfast Intl

Wed 1/10

11:10-13:40

Nonstop2h 30m

£126

PortoBelfast

OPO - BFS

OPOBFS

Porto

Sat 27/9

14:20-08:00

2 stops17h 40m

Belfast Intl

Wed 1/10

11:10-13:40

Nonstop2h 30m

£127

LisbonBelfast

LIS - BFS

LISBFS

Lisbon Humberto Delgado

Fri 10/10

07:55-18:15

1 stop10h 20m

Belfast Intl

Mon 13/10

21:55-09:10

1 stop11h 15m

£129

Flights are sorted by cheapest return flights first.

Deals found on 28/8

Showing 1-10 of 49 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, 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 29 August 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.

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 easyJet, with whom users have recently found tickets for as low as £61. However, be on the lookout for offers from Ryanair and Ryanair, 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

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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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