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 16/12. 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
10:50 - 14:35DUB-FNC
3h 45mdirect
Ryanair Logo
15:25 - 19:10FNC-DUB
3h 45mdirect
€40Ryanair
Find Deal
Sat, 6 Dec - Mon, 15 Dec
Ryanair Logo
10:50 - 14:35DUB-FNC
3h 45mdirect
Ryanair Logo
15:25 - 19:10FNC-DUB
3h 45mdirect
€41Ryanair
Find Deal
Sat, 6 Dec - Mon, 15 Dec
Ryanair Logo
09:15 - 11:35DUB-OPO
2h 20mdirect
Ryanair Logo
15:20 - 17:40OPO-DUB
2h 20mdirect
€47Ryanair
Find Deal
Mon, 12 Jan - Thu, 29 Jan
Ryanair Logo
07:10 - 10:00DUB-FAO
2h 50mdirect
Ryanair Logo
10:15 - 13:05FAO-DUB
2h 50mdirect
€48Ryanair
Find Deal
Thu, 4 Dec - Sun, 7 Dec
Ryanair Logo
07:10 - 10:00DUB-FAO
2h 50mdirect
Ryanair Logo
10:15 - 13:05FAO-DUB
2h 50mdirect
€48Ryanair
Find Deal
Thu, 4 Dec - Mon, 8 Dec
Ryanair Logo
16:50 - 19:40DUB-FAO
2h 50mdirect
Ryanair Logo
10:30 - 13:20FAO-DUB
2h 50mdirect
€50Ryanair
Find Deal
Sat, 29 Nov - Tue, 2 Dec
Ryanair Logo
20:05 - 22:55DUB-FAO
2h 50mdirect
Ryanair Logo
15:50 - 18:40FAO-DUB
2h 50mdirect
€51Ryanair
Find Deal
Mon, 15 Dec - Fri, 19 Dec
Ryanair Logo
16:50 - 19:40DUB-FAO
2h 50mdirect
Ryanair Logo
17:45 - 20:35FAO-DUB
2h 50mdirect
€52Ryanair
Find Deal
Sat, 29 Nov - Thu, 4 Dec
Multiple Airlines Logo
07:15 - 10:10DUB-LIS
2h 55mdirect
Multiple Airlines Logo
20:35 - 23:25LIS-DUB
2h 50mdirect
€75Multiple Airlines
Find Deal
Thu, 11 Dec - Wed, 17 Dec
Multiple Airlines Logo
17:15 - 20:05DUB-LIS
2h 50mdirect
Multiple Airlines Logo
21:05 - 08:00LIS-DUB
10h 55m1 stop
€82Multiple Airlines
Find Deal
Thu, 11 Dec - Wed, 17 Dec

Aer Lingus flights from Ireland to Portugal

Our best Aer Lingus deals on Ireland to Portugal flight tickets
Aer Lingus
2 Feb
DUB07:15Dublin
2h 55m
LIS10:10Lisbon Humberto Delgado
6 Feb
LIS10:50Lisbon Humberto Delgado
2h 55m
DUB13:45Dublin
Aer Lingus
2 Feb
DUB07:15Dublin
2h 55m
LIS10:10Lisbon Humberto Delgado
6 Feb
LIS10:50Lisbon Humberto Delgado
2h 55m
DUB13:45Dublin
Aer Lingus
11 Dec
DUB07:15Dublin
2h 55m
LIS10:10Lisbon Humberto Delgado
14 Dec
LIS18:55Lisbon Humberto Delgado
2h 50m
DUB21:45Dublin

KLM flights from Ireland to Portugal

Our best KLM deals on Ireland to Portugal flight tickets
KLM
13 Dec
ORK17:15Cork
17h 20m
1 stop
LIS10:35Lisbon Humberto Delgado
17 Dec
LIS05:00Lisbon Humberto Delgado
5h 45m
1 stop
ORK10:45Cork
KLM
13 Dec
ORK17:15Cork
17h 20m
1 stop
LIS10:35Lisbon Humberto Delgado
17 Dec
LIS05:00Lisbon Humberto Delgado
5h 45m
1 stop
ORK10:45Cork

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 13,528 searches. Data last updated 20 November 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

DublinFunchal

DUB - FNC

DUBFNC

Dublin

Sat 6/12

10:50-14:35

Nonstop3h 45m

Funchal Madeira

Mon 15/12

15:25-19:10

Nonstop3h 45m

€40

DublinFunchal

DUB - FNC

DUBFNC

Dublin

Sat 6/12

10:50-14:35

Nonstop3h 45m

Funchal Madeira

Mon 15/12

15:25-19:10

Nonstop3h 45m

€41

DublinPorto

DUB - OPO

DUBOPO

Dublin

Mon 12/1

09:15-11:35

Nonstop2h 20m

Porto

Thu 29/1

15:20-17:40

Nonstop2h 20m

€47

DublinFaro

DUB - FAO

DUBFAO

Dublin

Thu 4/12

07:10-10:00

Nonstop2h 50m

Faro

Sun 7/12

10:15-13:05

Nonstop2h 50m

€48

DublinFaro

DUB - FAO

DUBFAO

Dublin

Thu 4/12

07:10-10:00

Nonstop2h 50m

Faro

Mon 8/12

10:15-13:05

Nonstop2h 50m

€48

DublinFaro

DUB - FAO

DUBFAO

Dublin

Sat 29/11

16:50-19:40

Nonstop2h 50m

Faro

Tue 2/12

10:30-13:20

Nonstop2h 50m

€50

DublinFaro

DUB - FAO

DUBFAO

Dublin

Mon 15/12

20:05-22:55

Nonstop2h 50m

Faro

Fri 19/12

15:50-18:40

Nonstop2h 50m

€51

DublinFaro

DUB - FAO

DUBFAO

Dublin

Sat 29/11

16:50-19:40

Nonstop2h 50m

Faro

Thu 4/12

17:45-20:35

Nonstop2h 50m

€52

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Thu 11/12

07:15-10:10

Nonstop2h 55m

Lisbon Humberto Delgado

Wed 17/12

20:35-23:25

Nonstop2h 50m

€75

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Thu 11/12

17:15-20:05

Nonstop2h 50m

Lisbon Humberto Delgado

Wed 17/12

21:05-08:00

1 stop10h 55m

€82

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 €90. If you’re not able to fly to Portugal in January, then November is your next best option. Flight prices from Ireland to Portugal during November average around €109.

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 €361. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around €727. 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 €464. Flights to Portugal are more costly in the evening, with an average ticket price of €775. 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 €159 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 €134 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

€91

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 €91. 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)
  • 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 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?

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 €79Free CancellationRating
6.8
5,196 reviews
Search Ryanair flights
Aer LingusPriceFrom €91Free CancellationRating
7.2
1,377 reviews
Search Aer Lingus flights
TAP AIR PORTUGALPriceFrom €106Free CancellationRating
7.1
2,067 reviews
Search TAP AIR PORTUGAL flights
KLMPriceFrom €138Free CancellationRating
7.7
1,414 reviews
Search KLM flights
British AirwaysPriceFrom €433Free CancellationRating
6.7
7,533 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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1 adult
Sat 20/12
Sat 27/12

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Popular Cities in Portugal

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