What is the cheapest month to book a flight from Northern Ireland to Porto?

Currently, February is the cheapest month in which you can book a flight from Northern Ireland to Porto (average of £66). Flying from Northern Ireland to Porto in August is currently the most expensive (average of £258). 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.

In terms of precipitation, rainfall in Porto ranges from 18.0 - 195.0 inches per month. December is typically the wettest month, when rainfall can reach 195.0 mm. July is typically the driest time to visit Porto when rainfall is around 18.0 mm.

If weather is an important factor for your trip to Porto, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 20.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 9.0 C).

What are the cheapest flights from Northern Ireland to Porto?

While on average a flight from Northern Ireland to Porto is generally £158, our data shows the cheapest flight currently is £140. When looking at the most popular route, (Belfast Intl - Porto), you can expect to pay £103 for that flight.

What is the cheapest month to fly from Northern Ireland to Porto?

May can be a great time to fly to Porto from Northern Ireland with a flight ticket averaging about £204. Cheapflights users have found deals in the month of May for as cheap as £41. The most expensive prices can be found in the month of December.

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.

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.

£64+ Flights from Northern Ireland to Porto

Cheap flight deals from Northern Ireland to Porto

Round-trip from	£94
One-way from	£64
Popular in	December
Cheapest in	May
Average price	£210
Good round-trip deal	£140 or less

Ryanair
20/8-30/8
Nonstop
5h 00m total
Northern Ireland to Porto

Search Deals

28/8
1 total stop
14h 45m total
Northern Ireland to Porto

Search Deals

Highest demand for flights based on searches. 49% potential increase in price (£149 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 33% potential price decrease (£39 potential savings vs. average return price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Price to beat on a round-trip flight from Northern Ireland to Porto.

Search Deals

Find flight deals from Northern Ireland to Porto

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 15 July 2025.

Wed 20/811:10BFS - OPO

Nonstop2h 30mRyanair

Sat 30/813:30OPO - BFS

Nonstop2h 30mRyanair

Deal found 15/7£94

Sat 25/1010:35BFS - OPO

Nonstop2h 30mMultiple Airlines

Mon 27/1010:20OPO - BFS

1 stop10h 20mMultiple Airlines

Deal found 15/7£125

Wed 27/811:10BFS - OPO

Nonstop2h 30mRyanair

Wed 3/914:05OPO - BFS

Nonstop2h 30mRyanair

Deal found 13/7£139

Thu 23/1018:05BHD - OPO

1 stop4h 55mMultiple Airlines

Sat 25/1008:35OPO - BHD

1 stop9h 40mMultiple Airlines

Deal found 15/7£198

Tue 28/1006:35BHD - OPO

2 stops13h 25mBritish Airways

Wed 29/1020:40OPO - BHD

2 stops17h 35mBritish Airways

Deal found 15/7£238

Sun 31/807:05BHD - OPO

1 stop25h 30measyJet

Fri 5/919:45OPO - BHD

1 stop14h 50measyJet

Deal found 13/7£248

Wed 24/1217:20BHD - OPO

1 stop17h 10mKLM

Sun 28/1216:10OPO - BHD

1 stop24h 40mKLM

Deal found 13/7£279

Best flights from Northern Ireland to Porto
Discover carefully curated flight deals from Northern Ireland to Porto that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 July 2025.

Wed 20/811:10BFS - OPO

Nonstop2h 30mRyanair

Sat 30/813:30OPO - BFS

Nonstop2h 30mRyanair

Deal found 15/7£94

Sat 25/1010:35BFS - OPO

Nonstop2h 30mMultiple Airlines

Mon 27/1010:20OPO - BFS

1 stop10h 20mMultiple Airlines

Deal found 15/7£125

Wed 27/811:10BFS - OPO

Nonstop2h 30mRyanair

Wed 3/914:05OPO - BFS

Nonstop2h 30mRyanair

Deal found 13/7£139

Tue 28/1006:35BHD - OPO

2 stops13h 25mBritish Airways

Wed 29/1020:40OPO - BHD

2 stops17h 35mBritish Airways

Deal found 15/7£238

Sun 31/807:05BHD - OPO

1 stop25h 30measyJet

Fri 5/919:45OPO - BHD

1 stop14h 50measyJet

Deal found 13/7£248

Wed 24/1217:20BHD - OPO

1 stop17h 10mKLM

Sun 28/1216:10OPO - BHD

1 stop24h 40mKLM

Deal found 13/7£279

Thu 23/1018:05BHD - OPO

1 stop4h 55mMultiple Airlines

Sat 25/1008:35OPO - BHD

1 stop9h 40mMultiple Airlines

Deal found 15/7£198

Direct flights from Northern Ireland to Porto
Explore direct flight options from Northern Ireland to Porto based on user searches, and compare prices and availability for your desired travel dates. Data last updated 15 July 2025.

Wed 20/811:10BFS - OPO

Nonstop2h 30mRyanair

Sat 30/813:30OPO - BFS

Nonstop2h 30mRyanair

Deal found 15/7£94

Wed 27/811:10BFS - OPO

Nonstop2h 30mRyanair

Wed 3/914:05OPO - BFS

Nonstop2h 30mRyanair

Deal found 13/7£139

Last-minute flights from Northern Ireland to Porto
Discover last-minute flight deals from Northern Ireland to Porto. Data last updated 15 July 2025 and is based on user searches.

Sat 26/706:30BHD - OPO

1 stop15h 45mKLM

Wed 30/706:15OPO - BHD

1 stop10h 40mKLM

Deal found 13/7£322

Sat 2/806:55BHD - OPO

2 stops24h 20mMultiple Airlines

Wed 6/807:25OPO - BHD

1 stop9h 55mMultiple Airlines

Deal found 13/7£247

Wed 20/811:10BFS - OPO

Nonstop2h 30mRyanair

Sat 30/813:30OPO - BFS

Nonstop2h 30mRyanair

Deal found 15/7£94

Wed 20/811:30BHD - OPO

2 stops20h 05mBritish Airways

Sat 30/812:20OPO - BHD

2 stops8h 25mBritish Airways

Deal found 15/7£489

Sat 23/810:35BFS - OPO

Nonstop2h 30mMultiple Airlines

Wed 27/822:20OPO - BFS

1 stop14h 20mMultiple Airlines

Deal found 15/7£134

Wed 27/811:10BFS - OPO

Nonstop2h 30mRyanair

Wed 3/914:05OPO - BFS

Nonstop2h 30mRyanair

Deal found 13/7£139

Sun 31/807:05BHD - OPO

1 stop25h 30measyJet

Fri 5/919:45OPO - BHD

1 stop14h 50measyJet

Deal found 13/7£248

Cheapflights Fare Finder

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

BelfastPorto

BFS - OPO

BFSOPO

Belfast Intl

Wed 20/8

11:10-13:40

Nonstop2h 30m

Porto

Sat 30/8

13:30-16:00

Nonstop2h 30m

£94

BelfastPorto

BFS - OPO

BFSOPO

Belfast Intl

Sat 25/10

10:35-13:05

Nonstop2h 30m

Porto

Mon 27/10

10:20-20:40

1 stop10h 20m

£125

BelfastPorto

BFS - OPO

BFSOPO

Belfast Intl

Wed 27/8

11:10-13:40

Nonstop2h 30m

Porto

Wed 3/9

14:05-16:35

Nonstop2h 30m

£139

BelfastPorto

BHD - OPO

BHDOPO

Belfast City

Thu 23/10

18:05-23:00

1 stop4h 55m

Porto

Sat 25/10

08:35-18:15

1 stop9h 40m

£198

BelfastPorto

BHD - OPO

BHDOPO

Belfast City

Tue 28/10

06:35-20:00

2 stops13h 25m

Porto

Wed 29/10

20:40-14:15

2 stops17h 35m

£238

BelfastPorto

BHD - OPO

BHDOPO

Belfast City

Sun 31/8

07:05-08:35

1 stop25h 30m

Porto

Fri 5/9

19:45-10:35

1 stop14h 50m

£248

BelfastPorto

BHD - OPO

BHDOPO

Belfast City

Wed 24/12

17:20-10:30

1 stop17h 10m

Porto

Sun 28/12

16:10-16:50

1 stop24h 40m

£279

BelfastPorto

BFS - OPO

BFSOPO

Belfast Intl

Thu 28/8

06:00-20:45

1 stop14h 45m

£64

BelfastPorto

BHD - OPO

BHDOPO

Belfast City

Thu 28/8

14:30-23:00

1 stop8h 30m

£87

Flights are sorted by cheapest return flights first.

Deals found on 15/7

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

What is the cheapest time of day to fly from NIR to OPO?

When flying from Northern Ireland to Porto, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Porto

Read through reviews of airlines operating flights from Northern Ireland to Porto, such as KLM, easyJet, andRyanair. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,372 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

KLM

7.8

Good

1,372 reviews

KLM

7.8

Good

1,372 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

easyJet

6.9

Okay

1,818 reviews

KLM

7.8

Good

1,372 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Ryanair

6.9

Okay

5,151 reviews

KLM

7.8

Good

1,372 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

British Airways

6.6

Okay

7,141 reviews

KLM

7.8

Good

1,372 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Ryanair

6.1

Okay

KLM

7.8

Good

1,372 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

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.
What are the cheapest flights from Northern Ireland to Porto?
While on average a flight from Northern Ireland to Porto is generally £158, our data shows the cheapest flight currently is £140. When looking at the most popular route, (Belfast Intl - Porto), you can expect to pay £103 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.
What is the cheapest month to book a flight from Northern Ireland to Porto?
Currently, February is the cheapest month in which you can book a flight from Northern Ireland to Porto (average of £66). Flying from Northern Ireland to Porto in August is currently the most expensive (average of £258). 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

Coimbra

Viseu

Guimarães

Vila Nova de Gaia

Chaves

Aveiro

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Northern Ireland to Porto

Airline	Cheapest	Average	Flexibility	On-time
Ryanair	Cheapest£75	Average£161	FlexibilityNo cancel fee	On-timeN/A	Search Ryanair flights

Fly with Cheapflights

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

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 Porto from Northern Ireland today with Cheapflights!

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

Cheapflights simply makes it quick and affordable to book flights from Northern Ireland to Porto 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 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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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Northern Ireland to Porto from £64

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 28/8. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap 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 15 July 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Find flight deals from Northern Ireland to Porto

Cheapest flights from Northern Ireland to PortoExplore 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 15 July 2025.

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 15 July 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Northern Ireland to Porto that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from Northern Ireland to Porto

What is the cheapest time of day to fly from NIR to OPO?

Find hourly flight availability from Northern Ireland to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 July 2025.

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Porto. Reviews last updated 15 July 2025.

Read through reviews of airlines operating flights from Northern Ireland to Porto, such as KLM, easyJet, andRyanair. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

What are the cheapest flights from Northern Ireland to Porto?

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

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

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

What is the cheapest month to book a flight from Northern Ireland to Porto?

Travelling to a place near Porto?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Northern Ireland to Porto

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

Top airline flying from Northern Ireland to Porto

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

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

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

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

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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 15 July 2025.