Cheap flights from Northern Ireland to Porto from £17

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 27/4. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — OPO
2 May — 9 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Northern Ireland to Porto

Enter your travel dates to find the best prices.

Cheapest flights from Northern Ireland to Porto
Explore the most affordable flight options available from Northern Ireland to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 April 2026.

Fri 8/517:20
BFS
-
OPO
Nonstop2h 30m
Ryanair
Mon 11/507:15
OPO
-
BFS
Nonstop2h 30m
Ryanair
Deal found 29/3£51
Fri 8/517:20
BFS
-
OPO
Nonstop2h 30m
Ryanair
Mon 18/507:15
OPO
-
BFS
Nonstop2h 30m
Ryanair
Deal found 30/3£67
Mon 27/410:30
BFS
-
OPO
Nonstop2h 30m
Ryanair
Mon 4/507:15
OPO
-
BFS
Nonstop2h 30m
Ryanair
Deal found 28/3£78
Mon 27/410:30
BFS
-
OPO
Nonstop2h 30m
Multiple Airlines
Mon 4/521:05
OPO
-
BFS
2 stops19h 10m
Multiple Airlines
Deal found 28/3£80
Fri 8/508:55
BFS
-
OPO
1 stop6h 30m
Multiple Airlines
Mon 11/507:15
OPO
-
BFS
Nonstop2h 30m
Multiple Airlines
Deal found 31/3£84
Tue 12/507:35
BFS
-
OPO
1 stop13h 05m
Multiple Airlines
Tue 19/521:10
OPO
-
BFS
1 stop9h 55m
Multiple Airlines
Deal found 28/3£87
Wed 29/406:50
BHD
-
OPO
1 stop6h 35m
Multiple Airlines
Wed 6/507:25
OPO
-
BHD
1 stop5h 35m
Multiple Airlines
Deal found 1/4£129
Sat 16/506:50
BHD
-
OPO
2 stops24h 30m
Multiple Airlines
Sat 23/522:05
OPO
-
BHD
2 stops21h 35m
Multiple Airlines
Deal found 1/4£147
Wed 24/614:05
BHD
-
OPO
1 stop6h 35m
Multiple Airlines
Thu 2/709:55
OPO
-
BHD
1 stop5h 35m
Multiple Airlines
Deal found 30/3£150
Wed 20/511:40
BHD
-
OPO
2 stops19h 10m
Multiple Airlines
Fri 22/510:00
OPO
-
BHD
1 stop11h 05m
Multiple Airlines
Deal found 1/4£151
Fri 8/514:55
BHD
-
OPO
1 stop8h 55m
Multiple Airlines
Mon 11/515:15
OPO
-
BHD
1 stop5h 50m
Multiple Airlines
Deal found 30/3£160
Fri 1/506:55
BHD
-
OPO
2 stops13h 50m
Multiple Airlines
Fri 8/522:20
OPO
-
BHD
2 stops15h 55m
Multiple Airlines
Deal found 1/4£162

Find flight deals from Northern Ireland to Porto

Keep the following information in mind while searching for Northern Ireland to Porto flight deals. Data was last updated 2 April 2026.

Round-trip from

£51

One-way from

£17

Popular in

March

Cheapest in

May

Average price

£170

Good round-trip deal

£92 or less
Ryanair
  • Ryanair
  • 8/5-11/5
  • Nonstop
  • 5h 00m total
  • Northern Ireland to Porto
Ryanair
  • Ryanair
  • 27/4
  • Nonstop
  • 2h 30m total
  • Northern Ireland to Porto
Highest demand for flights based on searches. 33% potential increase in price (£68 potential increase over avg. return price).
Cheapest flight prices on average. 14% potential price decrease (£17 potential savings vs. average return price).
Average for round-trip flights in April 2026
Price to beat on a round-trip flight from Northern Ireland to Porto.

Cheapflights Fare Finder

 
Customise your flight search to find flights from Northern Ireland to Porto 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 2 April 2026.
Use the filters below to find and compare flights from Northern Ireland to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

BelfastPorto

BFS - OPO

BFSOPO

Belfast Intl

Fri 8/5

17:20-19:50

Nonstop2h 30m

Porto

Mon 11/5

07:15-09:45

Nonstop2h 30m

£66

BelfastPorto

BFS - OPO

BFSOPO

Belfast Intl

Mon 27/4

10:30-13:00

Nonstop2h 30m

Porto

Mon 4/5

21:05-16:15

2 stops19h 10m

£80

BelfastPorto

BFS - OPO

BFSOPO

Belfast Intl

Fri 8/5

08:55-15:25

1 stop6h 30m

Porto

Mon 11/5

07:15-09:45

Nonstop2h 30m

£84

BelfastPorto

BFS - OPO

BFSOPO

Belfast Intl

Fri 8/5

19:20-17:10

1 stop21h 50m

Porto

Mon 18/5

07:15-09:45

Nonstop2h 30m

£93

BelfastPorto

BFS - OPO

BFSOPO

Belfast Intl

Wed 29/4

05:55-12:05

1 stop6h 10m

Porto

Wed 6/5

06:05-19:50

1 stop13h 45m

£106

BelfastPorto

BHD - OPO

BHDOPO

Belfast City

Wed 20/5

11:40-06:50

2 stops19h 10m

Porto

Fri 22/5

10:00-21:05

1 stop11h 05m

£151

BelfastPorto

BHD - OPO

BHDOPO

Belfast City

Mon 1/6

09:50-22:15

1 stop12h 25m

Porto

Thu 4/6

19:10-09:20

1 stop14h 10m

£314

BelfastPorto

BHD - OPO

BHDOPO

Belfast City

Mon 22/6

09:50-18:10

1 stop8h 20m

Porto

Fri 26/6

05:00-16:55

1 stop11h 55m

£380

BelfastPorto

BHD - OPO

BHDOPO

Belfast City

Mon 10/8

17:30-10:40

1 stop17h 10m

Porto

Fri 14/8

05:00-16:55

1 stop11h 55m

£421

BelfastPorto

BHD - OPO

BHDOPO

Belfast City

Thu 23/4

17:30-10:40

1 stop17h 10m

Porto

Sun 26/4

19:00-09:20

1 stop14h 20m

£433

Flights are sorted by cheapest return flights first.

Deals found on 30/3

Showing 1-10 of 32 resultsSorted by cheapest first
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Best time to book a flight from Northern Ireland to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Northern Ireland 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 Northern Ireland to Porto

How much does it cost for a return flight from Northern Ireland to Porto?

Related info for your journey

Find useful and relevant information for your journey from Northern Ireland to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to Porto from Northern Ireland?

    Porto (OPO), located 6.8 mi from the city center, is the airport you fly into when you book flights from Northern Ireland to Porto.

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

    For as low as £66, Ryanair can have you in Porto from Northern Ireland in 2h 30m. Northern Ireland and Porto are separated by a distance of 933 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest flights from Northern Ireland to Porto?

    While on average a flight from Northern Ireland to Porto is generally £93, our data shows the cheapest flight currently is £70. When looking at the most popular route, (Belfast Intl - Porto), you can expect to pay £68 for that flight.

  • Can I find deals for flights from Northern Ireland to Porto that include hotel bookings?

    Yes. In addition to deals on Northern Ireland to Porto flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Northern Ireland to Porto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Northern Ireland to Porto.

  • Can I find deals for business class flights from Northern Ireland to Porto?

    Yes. Cheapflights offers flight deals from Northern Ireland to Porto 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

Travelling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Santa Maria da Feira
Viseu
Guimarães
Coimbra
Chaves
Vila Nova de Gaia
Aveiro

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Northern Ireland to Porto

Discover the top 2 airlines that operate flights from Northern Ireland to Porto. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 2 April 2026.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£47Average£163FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
RyanairCheapest£70Average£124FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights

Fly with Cheapflights

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

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Why should you use Cheapflights to find cheap flight tickets from Northern Ireland to Porto?

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Can Cheapflights find flights from Northern Ireland to Porto with no change fees?

Yes, we can. To see specific flights from Northern Ireland to Porto with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Northern Ireland to Porto become cheaper?

Of course! You can now track prices for flights from Northern Ireland to Porto 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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