Cheap flights from Ireland to Portugal from £23

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 13/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Ireland to Portugal

Recent return flight deals from Ireland to Portugal

Enter your travel dates to find the best prices.
Ryanair Logo
12:30 - 14:50
DUB
-
OPO
2h 20mdirect
Ryanair Logo
06:45 - 09:05
OPO
-
DUB
2h 20mdirect
£37Ryanair
Fri, 9 Jan - Wed, 28 Jan
Ryanair Logo
17:15 - 19:35
DUB
-
OPO
2h 20mdirect
Ryanair Logo
07:55 - 10:15
OPO
-
DUB
2h 20mdirect
£44Ryanair
Sat, 24 Jan - Sun, 25 Jan
Ryanair Logo
12:35 - 14:55
DUB
-
OPO
2h 20mdirect
Ryanair Logo
07:55 - 10:15
OPO
-
DUB
2h 20mdirect
£49Ryanair
Thu, 22 Jan - Sun, 25 Jan
Ryanair Logo
07:10 - 10:00
DUB
-
FAO
2h 50mdirect
Ryanair Logo
10:15 - 13:05
FAO
-
DUB
2h 50mdirect
£51Ryanair
Thu, 8 Jan - Sun, 11 Jan
Ryanair Logo
12:35 - 14:55
DUB
-
OPO
2h 20mdirect
Ryanair Logo
07:55 - 10:15
OPO
-
DUB
2h 20mdirect
£51Ryanair
Thu, 22 Jan - Sun, 25 Jan
Ryanair Logo
07:25 - 10:15
DUB
-
FAO
2h 50mdirect
Ryanair Logo
10:15 - 13:05
FAO
-
DUB
2h 50mdirect
£52Ryanair
Fri, 9 Jan - Mon, 12 Jan
Ryanair Logo
08:55 - 11:15
DUB
-
OPO
2h 20mdirect
Ryanair Logo
06:05 - 08:25
OPO
-
DUB
2h 20mdirect
£53Ryanair
Sat, 3 Jan - Sat, 17 Jan
Ryanair Logo
07:25 - 10:15
DUB
-
FAO
2h 50mdirect
Ryanair Logo
14:20 - 17:10
FAO
-
DUB
2h 50mdirect
£54Ryanair
Fri, 30 Jan - Fri, 6 Feb
Multiple Airlines Logo
07:15 - 10:10
DUB
-
LIS
2h 55mdirect
Multiple Airlines Logo
20:35 - 23:25
LIS
-
DUB
2h 50mdirect
£77Multiple Airlines
Tue, 3 Feb - Wed, 4 Feb
Multiple Airlines Logo
10:25 - 13:15
DUB
-
LIS
2h 50mdirect
Multiple Airlines Logo
10:20 - 21:10
LIS
-
DUB
10h 50m1 stop
£78Multiple Airlines
Tue, 3 Feb - Wed, 4 Feb

TAP AIR PORTUGAL flights from Ireland to Portugal

Our best TAP AIR PORTUGAL deals on Ireland to Portugal flight tickets
TAP AIR PORTUGAL
16 Jan
DUB04:25Dublin
2h 55m
LIS07:20Lisbon Humberto Delgado
24 Jan
LIS20:25Lisbon Humberto Delgado
2h 55m
DUB23:20Dublin
TAP AIR PORTUGAL
9 Jan
DUB11:10Dublin
7h 50m
1 stop
OPO19:00Porto
11 Jan
OPO05:00Porto
5h 20m
1 stop
DUB10:20Dublin
TAP AIR PORTUGAL
10 May
DUB10:45Dublin
6h 35m
1 stop
FAO17:20Faro
17 May
FAO11:15Faro
12h 50m
1 stop
DUB00:05Dublin

KLM flights from Ireland to Portugal

Our best KLM deals on Ireland to Portugal flight tickets
KLM
23 Jan
DUB05:55Dublin
12h 50m
1 stop
LIS18:45Lisbon Humberto Delgado
27 Jan
LIS15:30Lisbon Humberto Delgado
16h 35m
1 stop
DUB08:05Dublin
KLM
24 Jan
DUB13:25Dublin
9h 45m
1 stop
LIS23:10Lisbon Humberto Delgado
27 Jan
LIS15:30Lisbon Humberto Delgado
16h 35m
1 stop
DUB08:05Dublin
KLM
6 May
DUB17:20Dublin
14h 20m
1 stop
FAO07:40Faro
20 May
FAO08:10Faro
14h 15m
1 stop
DUB22:25Dublin

momondo Fare Finder

 
Customise your flight search to find flights from Ireland to Portugal 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, momondo users made 279,928 searches. Data last updated 18 December 2025.
Use the filters below to find and compare flights from Ireland to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinPorto

DUB - OPO

DUBOPO

Dublin

Fri 9/1

12:30-14:50

Nonstop2h 20m

Porto

Wed 28/1

06:45-09:05

Nonstop2h 20m

£37

DublinPorto

DUB - OPO

DUBOPO

Dublin

Sat 24/1

17:15-19:35

Nonstop2h 20m

Porto

Sun 25/1

07:55-10:15

Nonstop2h 20m

£44

DublinPorto

DUB - OPO

DUBOPO

Dublin

Thu 22/1

12:35-14:55

Nonstop2h 20m

Porto

Sun 25/1

07:55-10:15

Nonstop2h 20m

£49

DublinFaro

DUB - FAO

DUBFAO

Dublin

Thu 8/1

07:10-10:00

Nonstop2h 50m

Faro

Sun 11/1

10:15-13:05

Nonstop2h 50m

£51

DublinPorto

DUB - OPO

DUBOPO

Dublin

Thu 22/1

12:35-14:55

Nonstop2h 20m

Porto

Sun 25/1

07:55-10:15

Nonstop2h 20m

£51

DublinFaro

DUB - FAO

DUBFAO

Dublin

Fri 9/1

07:25-10:15

Nonstop2h 50m

Faro

Mon 12/1

10:15-13:05

Nonstop2h 50m

£52

DublinPorto

DUB - OPO

DUBOPO

Dublin

Sat 3/1

08:55-11:15

Nonstop2h 20m

Porto

Sat 17/1

06:05-08:25

Nonstop2h 20m

£53

DublinFaro

DUB - FAO

DUBFAO

Dublin

Fri 30/1

07:25-10:15

Nonstop2h 50m

Faro

Fri 6/2

14:20-17:10

Nonstop2h 50m

£54

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Tue 3/2

07:15-10:10

Nonstop2h 55m

Lisbon Humberto Delgado

Wed 4/2

20:35-23:25

Nonstop2h 50m

£77

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Tue 3/2

10:25-13:15

Nonstop2h 50m

Lisbon Humberto Delgado

Wed 4/2

10:20-21:10

1 stop10h 50m

£78

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Portugal from

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 £83. If you are unable to visit Portugal during the month of January, then departing from Ireland during the month February is also very affordable. Most momondo users find prices during this month for around £94.

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

The cheapest day to depart from Ireland to Portugal is on a Monday when prices can be found for as low as £173. Flights from Ireland to Portugal on a Wednesday will generally be more expensive and average around £305. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

The cheapest time of day to fly to Portugal is at midday when flights can be purchased for as low as £92. Flights to Portugal are more costly in the evening, with an average ticket price of £243. 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 Cork to Faro 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 £138 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 £112 on momondo.

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

There are 3 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

£44

Fastest flight time

2h 20m

Direct flights

Every day

Airports in Portugal

99 airports
The best one-way flight to Portugal from Ireland in the past 72 hours is £44. The best return flight deal from Ireland to Portugal found on momondo in the last 72 hours is £87.
The fastest flight from Ireland to Portugal takes 2h 20m
Direct flights go from Ireland to Portugal every day.
There are 99 airports in Portugal. From Ireland there are direct flights to Faro (FAO), Lisbon Humberto Delgado (LIS), Porto (OPO).
  • 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?

  • 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 required travel and health documents for your Portugal trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Portugal. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • 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
Airline
Rating
Free Cancellation
Price
RyanairPriceFrom £44Free CancellationRating
6.8
5,222 reviews
Search Ryanair flights
Aer LingusPriceFrom £67Free CancellationRating
7.2
1,397 reviews
Search Aer Lingus flights
TAP AIR PORTUGALPriceFrom £91Free CancellationRating
7.2
2,091 reviews
Search TAP AIR PORTUGAL flights

Why use momondo?

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

It is quick and easy to find Ireland to Portugal flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Portugal that suits you.

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

Yes. momondo enables you to select and highlight flights to Portugal from Ireland with this policy.

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

Once you have performed a search for Ireland to Portugal flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Of course. momondo tracks the price of Ireland to Portugal flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Portugal trip

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1 adult
Sat 17/1
Sat 24/1

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Popular Cities in Portugal

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