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Cheap flights from Ireland to Portugal from £25

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 16/12. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — LIS
27 Dec — 3 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ireland to Portugal

Keep the following information in mind while searching for Ireland to Portugal flight deals. Data was last updated 27 November 2025.

Round-trip from

£34

One-way from

£25

Popular in

July

Cheapest in

January

Average price

£92

Good round-trip deal

£117 or less

Good one-way deal

£33 or less
Ryanair
  • Ryanair
  • 12/1-28/1
  • Nonstop
  • 4h 40m total
  • Ireland to Portugal
Search Deals
Ryanair
  • Ryanair
  • 16/12
  • Nonstop
  • 2h 50m total
  • Ireland to Portugal
Search Deals
Highest demand for flights based on searches. 28% potential increase in price (£47 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Ireland to Portugal.
Search Deals
Price to beat on a one-way flight from Ireland to Portugal.
Search Deals

Find flight deals from Ireland to Portugal

Enter your travel dates to find the best prices.

Cheapest flights from Ireland to Portugal
Explore the most affordable flight options available from Ireland to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 November 2025.

Mon 15/1218:10DUB - LIS
Nonstop2h 50mRyanair
Wed 17/1220:35LIS - DUB
Nonstop2h 50mRyanair
Deal found 24/11£74
Mon 1/1207:15DUB - LIS
Nonstop2h 55mMultiple Airlines
Thu 4/1210:25LIS - DUB
Nonstop2h 50mMultiple Airlines
Deal found 24/11£91
Fri 5/1206:25DUB - OPO
1 stop5h 10mRyanair
Fri 5/1215:50OPO - DUB
1 stop7h 30mRyanair
Deal found 25/11£115
Mon 1/1219:15DUB - LIS
2 stops19h 35mRyanair
Thu 4/1210:25LIS - DUB
Nonstop2h 50mRyanair
Deal found 24/11£133
Thu 11/1218:35DUB - OPO
1 stop16h 35mSWISS
Sat 13/1211:55OPO - DUB
1 stop5h 50mSWISS
Deal found 23/11£133
Tue 23/1207:00DUB - FAO
Nonstop2h 50mRyanair
Wed 24/1206:35FAO - DUB
Nonstop2h 50mRyanair
Deal found 24/11£134
Fri 26/1208:05DUB - LIS
Nonstop2h 50mRyanair
Sun 28/1220:40LIS - DUB
Nonstop2h 50mRyanair
Deal found 26/11£135
Fri 5/1206:25DUB - OPO
1 stop5h 10mMultiple Airlines
Fri 5/1221:55OPO - DUB
2 stops26h 55mMultiple Airlines
Deal found 25/11£142
Thu 11/1205:00DUB - OPO
2 stops8h 15mLufthansa
Sat 13/1206:15OPO - DUB
1 stop10h 55mLufthansa
Deal found 23/11£147
Mon 1/1207:15DUB - LIS
Nonstop2h 55mMultiple Airlines
Mon 1/1222:00LIS - DUB
1 stop10h 55mMultiple Airlines
Deal found 25/11£149
Wed 10/1205:10DUB - LIS
1 stop6h 25mLufthansa
Sat 13/1206:10LIS - DUB
1 stop11h 00mLufthansa
Deal found 23/11£152
Sat 27/1209:40DUB - LIS
Nonstop2h 50mRyanair
Mon 29/1221:30LIS - DUB
Nonstop2h 50mRyanair
Deal found 26/11£154

Cheapflights 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, Cheapflights users made 858,174 searches. Data last updated 27 November 2025.
Use the filters below to find and compare flights from Ireland to Portugal that are best for you.

Fly from

Ireland

Fly to

Portugal

Route

Depart

Return

Price

DublinPorto

DUB - OPO

DUBOPO

Dublin

Sat 17/1

08:55-11:15

Nonstop2h 20m

Porto

Tue 20/1

21:05-23:25

Nonstop2h 20m

£42

DublinFaro

DUB - FAO

DUBFAO

Dublin

Fri 9/1

17:35-20:25

Nonstop2h 50m

Faro

Fri 16/1

14:20-17:10

Nonstop2h 50m

£49

DublinPorto

DUB - OPO

DUBOPO

Dublin

Wed 7/1

09:50-12:10

Nonstop2h 20m

Porto

Wed 14/1

06:45-09:05

Nonstop2h 20m

£54

DublinPorto

DUB - OPO

DUBOPO

Dublin

Mon 12/1

06:30-14:15

1 stop7h 45m

Porto

Wed 28/1

06:45-09:05

Nonstop2h 20m

£60

DublinFaro

DUB - FAO

DUBFAO

Dublin

Fri 6/2

17:35-20:25

Nonstop2h 50m

Faro

Mon 9/2

10:15-13:05

Nonstop2h 50m

£62

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Fri 23/1

08:05-10:55

Nonstop2h 50m

Lisbon Humberto Delgado

Sun 25/1

09:55-12:45

Nonstop2h 50m

£70

DublinPorto

DUB - OPO

DUBOPO

Dublin

Fri 9/1

12:30-14:50

Nonstop2h 20m

Porto

Fri 16/1

14:10-23:10

1 stop9h 00m

£70

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Mon 15/12

18:10-21:00

Nonstop2h 50m

Lisbon Humberto Delgado

Wed 17/12

20:35-23:25

Nonstop2h 50m

£74

DublinFaro

DUB - FAO

DUBFAO

Dublin

Fri 6/2

17:35-20:25

Nonstop2h 50m

Faro

Mon 9/2

15:10-22:55

1 stop7h 45m

£75

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Thu 8/1

10:35-21:05

2 stops10h 30m

Lisbon Humberto Delgado

Wed 28/1

20:35-23:25

Nonstop2h 50m

£83

Flights are sorted by cheapest return flights first.

Deals found on 26/11

Showing 1-10 of 52 results
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Best time to book a flight from Ireland to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal from 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 Ireland to Portugal

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

Currently, January is the cheapest month in which you can book a flight from Ireland to Portugal (average of £22). Flying from Ireland to Portugal in July is currently the most expensive (average of £86). 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.

What is the cheapest time of day to fly from IE to PT?

Find hourly flight availability from Ireland to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 27 November 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 22% on flights from Ireland to Portugal by exploring options for tickets in the evening.

What is the cheapest day to fly from Ireland to Portugal?

Use this chart to determine the cheapest time to fly return from Ireland to Portugal. Price data was last updated on 25 November 2025.

Travellers seeking maximum savings on their Ireland to Portugal flight should consider departing on Wednesday at midday when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

How often are flights from Ireland to Portugal delayed?

About 19% of weekly flights between Ireland and Portugal have experienced delays in the past year, with the average delay time being 110 minutes.

What is the most punctual flight time for Ireland to Portugal flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Ireland to Portugal flights?

Over the past year, Hahn Air have had the lowest number of delays on this route, with no flights being classified as delayed.

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. 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 Portugal. Reviews last updated 27 November 2025.
Check out reviews from past customers who have flown with Aer Lingus, TAP AIR PORTUGAL, andRyanair from Ireland to Portugal to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.2
Good
1,381 reviews
Check prices

Comfort

7.1

Crew

8.0

Overall

7.2

Entertainment

6.9

Food

6.6

Boarding

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.
Aer Lingus
7.2
Good
1,381 reviews
Aer Lingus
7.2
Good
1,381 reviews
Check prices

Comfort

7.1

Crew

8.0

Overall

7.2

Entertainment

6.9

Food

6.6

Boarding

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.
TAP AIR PORTUGAL
7.1
Good
2,074 reviews
Aer Lingus
7.2
Good
1,381 reviews
Check prices

Comfort

7.1

Crew

8.0

Overall

7.2

Entertainment

6.9

Food

6.6

Boarding

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.
Ryanair
6.8
Okay
5,206 reviews
Aer Lingus
7.2
Good
1,381 reviews
Check prices

Comfort

7.1

Crew

8.0

Overall

7.2

Entertainment

6.9

Food

6.6

Boarding

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.

Related info for your journey

Find useful and relevant information for your journey from Ireland to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Ireland to Portugal flight route?

    This flight path from Ireland to Portugal was viewed by 447 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Ireland to Portugal?

    For as low as £42, Ryanair can have you in Portugal from Ireland in 2h 20m. Airlines will cover a distance of 848 mi. Generally, flights for this route are direct.

  • What are the cheapest airlines to fly from Ireland to Portugal one-way?

    £25 is the cheapest one-way deal found within the past few days, from Ryanair. You may also be able to find cheap deals on Aer Lingus and TAP AIR PORTUGAL, with prices starting from £44 and £53, respectively.

  • Can I find deals for flights from Ireland to Portugal that include hotel bookings?

    Yes. In addition to deals on Ireland to Portugal flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Ireland to Portugal?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ireland to Portugal.

  • Can I find deals for business class flights from Ireland to Portugal?

    Yes. Cheapflights offers flight deals from Ireland to Portugal 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 Ireland to Portugal?

    Currently, January is the cheapest month in which you can book a flight from Ireland to Portugal (average of £22). Flying from Ireland to Portugal in July is currently the most expensive (average of £86). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Ireland to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Ireland to Portugal

Discover the top 3 airlines that operate flights from Ireland to Portugal. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 27 November 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£44Average£136FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
Aer LingusCheapest£69Average£190FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
TAP AIR PORTUGALCheapest£89Average£188FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights

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 Ireland to Portugal?

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 Portugal from Ireland today with Cheapflights!

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

Cheapflights simply makes it quick and affordable to book flights from Ireland to Portugal 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 Ireland to Portugal with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ireland to Portugal, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights offers price alerts on Ireland to Portugal flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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