What is the cheapest airline that flies from Ireland to Portugal?

Ryanair and Aer Lingus are the most popular carriers operating from Ireland to Portugal

How long is the flight from Ireland to Portugal?

If you’re flying from a popular airport in Ireland, such as Dublin or Knock, and flying into Portugal, then you can expect flight times to average 2h 50m and 5h 55m, respectively.

How many flights depart from Ireland to Portugal on average per week?

The number of flights available between Ireland and Portugal is 45 per week as of October 2025. The most frequent departure day is Fri, with 42% of weekly flights leaving on this day.

How many flights depart from Ireland to Portugal on average per day?

As of October 2025, 6 flights take off from Ireland and land in Portugal each day. The most common flight departure time for this route is 07:00, with 48% of daily flights taking off at midday.

Which airlines fly to Portugal?

Aer Lingus, TAP AIR PORTUGAL and KLM are the top three most popular airlines that fly to Portugal from Ireland according to our data. Aer Lingus is the first choice among our users, with 64% of people opting to fly with this airline when travelling to Portugal. Keep in mind that there are 4 different airlines that fly to Portugal on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Ireland to Portugal?

Prices for flights from Ireland to Portugal are updated daily.

How many operators does momondo search for flights from Ireland to Portugal?

The number of operators available for flights from Ireland to Portugal is 4 as of October 2025.

How old do you have to be to fly from Ireland to Portugal?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ireland to Portugal.

What documentation or ID do you need to fly to Portugal?

The necessary travel and health documents for your Portugal trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

€22 Cheap Flights from Ireland to Portugal in 2025/26

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Find the cheapest flights from Ireland to Portugal

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Recent return flight deals from Ireland to Portugal

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10:05 - 13:50DUB-FNC

3h 45mdirect

06:00 - 09:40FNC-DUB

3h 40mdirect

€35Ryanair

Find Deal

Wed, 10 Dec - Wed, 17 Dec

14:30 - 17:20DUB-FAO

2h 50mdirect

10:15 - 13:05FAO-DUB

2h 50mdirect

€45Ryanair

Find Deal

Thu, 4 Dec - Sun, 7 Dec

12:30 - 14:50DUB-OPO

2h 20mdirect

09:45 - 12:05OPO-DUB

2h 20mdirect

€47Ryanair

Find Deal

Fri, 5 Dec - Fri, 12 Dec

07:15 - 10:10DUB-LIS

2h 55mdirect

10:50 - 13:45LIS-DUB

2h 55mdirect

€100Aer Lingus

Find Deal

Thu, 11 Dec - Mon, 15 Dec

15:40 - 10:35ORK-LIS

18h 55m2 stops

15:30 - 15:00LIS-ORK

23h 30m2 stops

€286KLM

Find Deal

Sat, 6 Dec - Fri, 12 Dec

04:25 - 23:45DUB-PDL

20h 20m1 stop

19:25 - 10:20PDL-DUB

13h 55m1 stop

€296TAP AIR PORTUGAL

Find Deal

Thu, 27 Nov - Fri, 5 Dec

15:40 - 10:35ORK-LIS

18h 55m2 stops

05:00 - 15:00LIS-ORK

10h 00m2 stops

€351KLM

Find Deal

Sun, 1 Mar - Sat, 7 Mar

18:50 - 09:45DUB-PDL

15h 55m1 stop

19:40 - 10:00PDL-DUB

13h 20m1 stop

€381TAP AIR PORTUGAL

Find Deal

Sun, 29 Mar - Tue, 31 Mar

20:05 - 09:55SNN-LIS

13h 50m1 stop

07:05 - 16:45LIS-SNN

9h 40m1 stop

€440British Airways

Find Deal

Thu, 4 Dec - Wed, 10 Dec

16:15 - 23:10ORK-LIS

6h 55m1 stop

07:20 - 19:50LIS-ORK

12h 30m1 stop

€465British Airways

Find Deal

Tue, 31 Mar - Thu, 2 Apr

KLM flights from Ireland to Portugal

Our best KLM deals on Ireland to Portugal flight tickets

KLM

11 Nov

ORK11:15Cork

7h 40m

1 stop

FAO18:55Faro

15 Dec

FAO19:15Faro

15h 30m

1 stop

ORK10:45Cork

€227

Find similar

KLM

11 Nov

ORK11:15Cork

7h 40m

1 stop

FAO18:55Faro

15 Dec

FAO19:15Faro

15h 30m

1 stop

ORK10:45Cork

€228

Find similar

KLM

6 Dec

ORK15:40Cork

18h 55m

2 stops

LIS10:35Lisbon Humberto Delgado

12 Dec

LIS15:30Lisbon Humberto Delgado

23h 30m

2 stops

ORK15:00Cork

€286

Find similar

Lufthansa flights from Ireland to Portugal

Our best Lufthansa deals on Ireland to Portugal flight tickets

Lufthansa

31 Mar

ORK17:00Cork

6h 30m

1 stop

LIS23:30Lisbon Humberto Delgado

2 Apr

LIS05:05Lisbon Humberto Delgado

11h 10m

1 stop

ORK16:15Cork

€353

Find similar

Lufthansa

10 Nov

DUB09:10Dublin

28h 15m

1 stop

FNC13:25Funchal Madeira

19 Nov

FNC13:05Funchal Madeira

21h 00m

1 stop

DUB10:05Dublin

€386

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DublinFunchal

DUB - FNC

DUBFNC

Dublin

Wed 10/12

10:05-13:50

Nonstop3h 45m

Funchal Madeira

Wed 17/12

06:00-09:40

Nonstop3h 40m

€35

DublinFaro

DUB - FAO

DUBFAO

Dublin

Thu 4/12

14:30-17:20

Nonstop2h 50m

Faro

Sun 7/12

10:15-13:05

Nonstop2h 50m

€45

DublinPorto

DUB - OPO

DUBOPO

Dublin

Fri 5/12

12:30-14:50

Nonstop2h 20m

Porto

Fri 12/12

09:45-12:05

Nonstop2h 20m

€47

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Thu 11/12

07:15-10:10

Nonstop2h 55m

Lisbon Humberto Delgado

Mon 15/12

10:50-13:45

Nonstop2h 55m

€100

CorkLisbon

ORK - LIS

ORKLIS

Cork

Sat 6/12

15:40-10:35

2 stops18h 55m

Lisbon Humberto Delgado

Fri 12/12

15:30-15:00

2 stops23h 30m

€286

DublinPonta Delgada

DUB - PDL

DUBPDL

Dublin

Thu 27/11

04:25-23:45

1 stop20h 20m

Ponta Delgada Nordela

Fri 5/12

19:25-10:20

1 stop13h 55m

€296

CorkLisbon

ORK - LIS

ORKLIS

Cork

Sun 1/3

15:40-10:35

2 stops18h 55m

Lisbon Humberto Delgado

Sat 7/3

05:00-15:00

2 stops10h 00m

€351

DublinPonta Delgada

DUB - PDL

DUBPDL

Dublin

Sun 29/3

18:50-09:45

1 stop15h 55m

Ponta Delgada Nordela

Tue 31/3

19:40-10:00

1 stop13h 20m

€381

ShannonLisbon

SNN - LIS

SNNLIS

Shannon

Thu 4/12

20:05-09:55

1 stop13h 50m

Lisbon Humberto Delgado

Wed 10/12

07:05-16:45

1 stop9h 40m

€440

CorkLisbon

ORK - LIS

ORKLIS

Cork

Tue 31/3

16:15-23:10

1 stop6h 55m

Lisbon Humberto Delgado

Thu 2/4

07:20-19:50

1 stop12h 30m

€465

Flights are sorted by cheapest return flights first.

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How to get the cheapest flight ticket from Ireland to Portugal

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Portugal?

The month of January is, on average, the cheapest month to fly to Portugal from Ireland, with most prices found around €92. If you’re not able to fly to Portugal in January, then February is your next best option. Flight prices from Ireland to Portugal during February average around €116.

What is the cheapest day to depart on your flight to Portugal?

The cheapest day to depart from Ireland to Portugal is on a Sunday when prices can be found for as low as €336. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around €729. These prices are subject to change though, so be sure to set up a Price Alert for flights to Portugal.

What is the cheapest time of day to depart on your flight to Portugal?

Our most recent data shows that the best time of day to fly to Portugal is in the morning. Flights from Ireland to Portugal during this time can be as low as €466. Flights to Portugal are more costly in the evening, with an average ticket price of €766. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Ireland to Portugal flight route?

Fly from Dublin to Lisbon Humberto Delgado for the best Ireland - Portugal flight prices

How far in advance should I book a flight to Portugal?

You are more likely to see cheaper flights to Portugal from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around €162 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from Ireland for as low as €138 on momondo.

What cabin class options are available on Ireland to Portugal flights?

There are 2 cabin classes available to choose from on Ireland to Portugal flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Ireland to Portugal flights?

No. A direct flight is the cheapest option for a flight between Ireland to Portugal.

Cheap Ireland to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ireland to Portugal

Best price found	€106
Fastest flight time	2h 20m
Direct flights	Every day
Airports in Portugal	1 airport

The best one-way flight to Portugal from Ireland in the past 72 hours is €106. The best return flight deal from Ireland to Portugal found on momondo in the last 72 hours is €236.

The fastest flight from Ireland to Portugal takes 2h 20m

Direct flights go from Ireland to Portugal every day.

There is 1 airport near Portugal: Porto (OPO)

Search flight deals

When did momondo last update prices for flights from Ireland to Portugal?
Prices for flights from Ireland to Portugal are updated daily.
How many operators does momondo search for flights from Ireland to Portugal?
The number of operators available for flights from Ireland to Portugal is 4 as of October 2025.
How old do you have to be to fly from Ireland to Portugal?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ireland to Portugal.
What documentation or ID do you need to fly to Portugal?
The necessary travel and health documents for your Portugal trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Ireland to Portugal?
momondo data reveals that the most frequently booked plane model on the route from Ireland to Portugal is Airbus A320-100/200, representing 24.39% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 19.59%, Boeing 737-800 Passenger/BBJ2 (winglets) at 17.01%, and Airbus A330-300 at 10.06%.

Best airlines flying from Ireland to Portugal

Compare and see reviews for airlines that fly from Ireland to Portugal with momondo

Airline	Rating	Free Cancellation	Price
Aer Lingus	PriceFrom €91	Free Cancellation	Rating 7.2 1,365 reviews	Search Aer Lingus flights
TAP AIR PORTUGAL	PriceFrom €106	Free Cancellation	Rating 7.1 2,041 reviews	Search TAP AIR PORTUGAL flights
KLM	PriceFrom €137	Free Cancellation	Rating 7.7 1,406 reviews	Search KLM flights
British Airways	PriceFrom €432	Free Cancellation	Rating 6.7 7,489 reviews	Search British Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from Ireland to Portugal?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ireland to Portugal . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ireland to Portugal with flexible booking policies on momondo?

momondo does allow users to show only those flights to Portugal from Ireland which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Ireland to Portugal?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ireland to Portugal.

I’m not ready to book a flight from Ireland to Portugal right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Portugal from Ireland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Portugal trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

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Find better results for your trip to Portugal

Popular Cities in Portugal

Flights to Lisbonfrom €35

Flights to Farofrom €45

Flights to Portofrom €52

Flights to Funchalfrom €35

Flights to Ponta Delgadafrom €157

Flights to Lajesfrom €267

Flights to Porto Santofrom €430

Cheap flights from Ireland to Portugal from €22

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to Portugal departing on 30/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Ireland to Portugal

Recent return flight deals from Ireland to Portugal

Recent one-way flight deals from Ireland to Portugal

Recent last minute flight deals from Ireland to Portugal

Recent direct flight deals from Ireland to Portugal

KLM flights from Ireland to Portugal

Our best KLM deals on Ireland to Portugal flight tickets

Lufthansa flights from Ireland to Portugal

Our best Lufthansa deals on Ireland to Portugal flight tickets

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

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How to get the cheapest flight ticket from Ireland to Portugal

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Portugal?

The month of January is, on average, the cheapest month to fly to Portugal from Ireland, with most prices found around €92. If you’re not able to fly to Portugal in January, then February is your next best option. Flight prices from Ireland to Portugal during February average around €116.

What is the cheapest day to depart on your flight to Portugal?

What is the cheapest time of day to depart on your flight to Portugal?

What is the cheapest Ireland to Portugal flight route?

Fly from Dublin to Lisbon Humberto Delgado for the best Ireland - Portugal flight prices

How far in advance should I book a flight to Portugal?

What cabin class options are available on Ireland to Portugal flights?

There are 2 cabin classes available to choose from on Ireland to Portugal flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Ireland to Portugal flights?

No. A direct flight is the cheapest option for a flight between Ireland to Portugal.

What is the cheapest airline that flies from Ireland to Portugal?

Ryanair and Aer Lingus are the most popular carriers operating from Ireland to Portugal

Which airlines fly to Portugal?

How many flights depart from Ireland to Portugal on average per day?

As of October 2025, 6 flights take off from Ireland and land in Portugal each day. The most common flight departure time for this route is 07:00, with 48% of daily flights taking off at midday.

How many flights depart from Ireland to Portugal on average per week?

The number of flights available between Ireland and Portugal is 45 per week as of October 2025. The most frequent departure day is Fri, with 42% of weekly flights leaving on this day.

How long is the flight from Ireland to Portugal?

If you’re flying from a popular airport in Ireland, such as Dublin or Knock, and flying into Portugal, then you can expect flight times to average 2h 50m and 5h 55m, respectively.

Cheap Ireland to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ireland to Portugal

Best price found

Fastest flight time

Direct flights

Airports in Portugal

When did momondo last update prices for flights from Ireland to Portugal?

How many operators does momondo search for flights from Ireland to Portugal?

How old do you have to be to fly from Ireland to Portugal?

What documentation or ID do you need to fly to Portugal?

What is the most popular plane model from Ireland to Portugal?

Best airlines flying from Ireland to Portugal

Compare and see reviews for airlines that fly from Ireland to Portugal with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Ireland to Portugal?

Can I find flights from Ireland to Portugal with flexible booking policies on momondo?

How can momondo help me find flights from Ireland to Portugal?

I’m not ready to book a flight from Ireland to Portugal right now. Can momondo alert me if prices change?

An easier way to manage your Portugal trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Portugal

Popular Cities in Portugal

Popular flights according to clicks in the last 7 days on momondo