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Cheap flights from Ireland to Portugal from £20

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 12/12. 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
07:10 - 10:00DUB-FAO
2h 50mdirect
Ryanair Logo
16:50 - 19:40FAO-DUB
2h 50mdirect
£39Ryanair
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Thu, 4 Dec - Mon, 8 Dec
Ryanair Logo
12:30 - 14:50DUB-OPO
2h 20mdirect
Ryanair Logo
09:45 - 12:05OPO-DUB
2h 20mdirect
£42Ryanair
Find Deal
Fri, 5 Dec - Fri, 12 Dec
Ryanair Logo
07:00 - 09:50DUB-FAO
2h 50mdirect
Ryanair Logo
17:35 - 20:25FAO-DUB
2h 50mdirect
£43Ryanair
Find Deal
Sat, 13 Dec - Sun, 14 Dec
Multiple Airlines Logo
07:55 - 16:55DUB-LIS
9h 00m1 stop
Multiple Airlines Logo
13:20 - 16:10LIS-DUB
2h 50mdirect
£88Multiple Airlines
Find Deal
Sat, 13 Dec - Sat, 20 Dec
Multiple Airlines Logo
07:00 - 09:50DUB-FAO
2h 50mdirect
Multiple Airlines Logo
09:50 - 23:30FAO-DUB
13h 40m1 stop
£93Multiple Airlines
Find Deal
Sat, 13 Dec - Sat, 20 Dec
Lufthansa Logo
09:10 - 22:25DUB-OPO
13h 15m1 stop
Lufthansa Logo
06:00 - 16:25OPO-DUB
10h 25m1 stop
£119Lufthansa
Find Deal
Wed, 4 Mar - Sat, 7 Mar
Lufthansa Logo
05:00 - 14:55DUB-OPO
9h 55m1 stop
Lufthansa Logo
06:00 - 16:25OPO-DUB
10h 25m1 stop
£120Lufthansa
Find Deal
Tue, 3 Mar - Sat, 7 Mar
TAP AIR PORTUGAL Logo
04:25 - 23:50DUB-FAO
19h 25m1 stop
TAP AIR PORTUGAL Logo
16:35 - 10:20FAO-DUB
17h 45m1 stop
£144TAP AIR PORTUGAL
Find Deal
Wed, 19 Nov - Sat, 22 Nov
TAP AIR PORTUGAL Logo
04:15 - 07:10DUB-LIS
2h 55mdirect
TAP AIR PORTUGAL Logo
20:25 - 23:20LIS-DUB
2h 55mdirect
£147TAP AIR PORTUGAL
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Sat, 15 Nov - Fri, 21 Nov
Aer Lingus Logo
07:15 - 10:10DUB-LIS
2h 55mdirect
Aer Lingus Logo
18:55 - 21:45LIS-DUB
2h 50mdirect
£165Aer Lingus
Find Deal
Thu, 11 Dec - Sun, 14 Dec

Air France flights from Ireland to Portugal

Our best Air France deals on Ireland to Portugal flight tickets
Air France
27 Nov
DUB08:55Dublin
6h 15m
1 stop
LIS15:10Lisbon Humberto Delgado
22 Dec
LIS18:30Lisbon Humberto Delgado
13h 20m
1 stop
DUB07:50Dublin
£162
Find similar
Air France
5 Nov
DUB06:00Dublin
11h 30m
1 stop
LIS17:30Lisbon Humberto Delgado
10 Nov
LIS18:30Lisbon Humberto Delgado
13h 20m
1 stop
DUB07:50Dublin
£297
Find similar
Air France
5 Nov
DUB06:00Dublin
11h 30m
1 stop
LIS17:30Lisbon Humberto Delgado
10 Nov
LIS18:30Lisbon Humberto Delgado
13h 20m
1 stop
DUB07:50Dublin
£329
Find similar

TAP AIR PORTUGAL flights from Ireland to Portugal

Our best TAP AIR PORTUGAL deals on Ireland to Portugal flight tickets
TAP AIR PORTUGAL
2 Nov
DUB04:15Dublin
19h 35m
1 stop
FAO23:50Faro
7 Nov
FAO11:15Faro
12h 05m
1 stop
DUB23:20Dublin
£129
Find similar
TAP AIR PORTUGAL
19 Nov
DUB04:25Dublin
19h 25m
1 stop
FAO23:50Faro
22 Nov
FAO16:35Faro
17h 45m
1 stop
DUB10:20Dublin
£144
Find similar
TAP AIR PORTUGAL
15 Nov
DUB04:15Dublin
2h 55m
LIS07:10Lisbon Humberto Delgado
21 Nov
LIS20:25Lisbon Humberto Delgado
2h 55m
DUB23:20Dublin
£147
Find similar

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 31 October 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

DublinFaro

DUB - FAO

DUBFAO

Dublin

Thu 4/12

07:10-10:00

Nonstop2h 50m

Faro

Mon 8/12

16:50-19:40

Nonstop2h 50m

£39

DublinPorto

DUB - OPO

DUBOPO

Dublin

Fri 5/12

12:30-14:50

Nonstop2h 20m

Porto

Fri 12/12

09:45-12:05

Nonstop2h 20m

£42

DublinFaro

DUB - FAO

DUBFAO

Dublin

Sat 13/12

07:00-09:50

Nonstop2h 50m

Faro

Sun 14/12

17:35-20:25

Nonstop2h 50m

£42

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Sat 13/12

07:55-16:55

1 stop9h 00m

Lisbon Humberto Delgado

Sat 20/12

13:20-16:10

Nonstop2h 50m

£88

DublinFaro

DUB - FAO

DUBFAO

Dublin

Sat 13/12

07:00-09:50

Nonstop2h 50m

Faro

Sat 20/12

09:50-23:30

1 stop13h 40m

£93

DublinPorto

DUB - OPO

DUBOPO

Dublin

Wed 4/3

09:10-22:25

1 stop13h 15m

Porto

Sat 7/3

06:00-16:25

1 stop10h 25m

£119

DublinPorto

DUB - OPO

DUBOPO

Dublin

Tue 3/3

05:00-14:55

1 stop9h 55m

Porto

Sat 7/3

06:00-16:25

1 stop10h 25m

£120

DublinFaro

DUB - FAO

DUBFAO

Dublin

Wed 19/11

04:25-23:50

1 stop19h 25m

Faro

Sat 22/11

16:35-10:20

1 stop17h 45m

£144

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Sat 15/11

04:15-07:10

Nonstop2h 55m

Lisbon Humberto Delgado

Fri 21/11

20:25-23:20

Nonstop2h 55m

£147

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Thu 11/12

07:15-10:10

Nonstop2h 55m

Lisbon Humberto Delgado

Sun 14/12

18:55-21:45

Nonstop2h 50m

£165

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 £81. 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 £102.

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 £174. Flights from Ireland to Portugal on a Wednesday will generally be more expensive and average around £306. 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 £104. Flights to Portugal are more costly in the morning, with an average ticket price of £239. Departure times in the morning 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 £142 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 £121 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

£53

Fastest flight time

2h 20m

Direct flights

Every day

Airports in Portugal

3 airports
The best one-way flight to Portugal from Ireland in the past 72 hours is £53. The best return flight deal from Ireland to Portugal found on momondo in the last 72 hours is £49.
The fastest flight from Ireland to Portugal takes 2h 20m
Direct flights go from Ireland to Portugal every day.
There are 3 airports near Portugal: Faro (FAO), Lisbon Humberto Delgado (LIS), Porto (OPO)
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  • 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
5,188 reviews
Search Ryanair flights
Aer LingusPriceFrom £69Free CancellationRating
7.2
1,365 reviews
Search Aer Lingus flights
TAP AIR PORTUGALPriceFrom £89Free CancellationRating
7.1
2,040 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.

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Find better results for your trip to Portugal

Popular Cities in Portugal

Popular flights according to clicks in the last 7 days on momondo
Flights to Lisbonfrom £29
Flights to Farofrom £29
Flights to Portofrom £33
Flights to Funchalfrom £38
Flights to Ponta Delgadafrom £133
Flights to Lajesfrom £145
Flights to Hortafrom £200
Flights to Pico Islandfrom £292
Flights to Porto Santofrom £175
Flights to Santa Cruz das Floresfrom £456