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Cheap flights from Ireland to Portugal from £37

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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — LIS
23 Apr — 30 Apr1
1 adult

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 18 April 2025.

Round-trip from

£60

One-way from

£37

Popular in

July

Cheapest in

January

Average price

£194

Good round-trip deal

£99 or less

Good one-way deal

£44 or less
Ryanair
  • Ryanair
  • 6/5-13/5
  • Nonstop
  • 4h 50m total
  • Ireland to Portugal
Search Deals
Ryanair
  • Ryanair
  • 15/9
  • Nonstop
  • 2h 50m total
  • Ireland to Portugal
Search Deals
Highest demand for flights based on searches. 27% potential increase in price (£49 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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

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 18 April 2025.

Tue 6/519:35DUB - OPO
Nonstop2h 25mRyanair
Tue 13/522:25OPO - DUB
Nonstop2h 25mRyanair
Deal found 15/4£60
Sat 17/520:35DUB - FAO
Nonstop2h 55mRyanair
Sun 18/507:00FAO - DUB
Nonstop3h 00mRyanair
Deal found 17/4£69
Mon 1/919:10DUB - LIS
Nonstop2h 50mRyanair
Thu 4/909:25LIS - DUB
Nonstop2h 45mRyanair
Deal found 15/4£72
Sun 16/1104:25DUB - LIS
Nonstop2h 50mTAP AIR PORTUGAL
Mon 24/1107:25LIS - DUB
Nonstop2h 55mTAP AIR PORTUGAL
Deal found 17/4£105
Tue 6/521:30DUB - OPO
1 stop25h 25mMultiple Airlines
Tue 13/522:00OPO - DUB
1 stop17h 30mMultiple Airlines
Deal found 16/4£116
Tue 13/507:35DUB - FAO
Nonstop3h 00mAer Lingus
Fri 23/511:40FAO - DUB
Nonstop2h 55mAer Lingus
Deal found 17/4£122
Sat 4/1018:05DUB - LIS
Nonstop2h 50mMultiple Airlines
Sat 11/1007:40LIS - DUB
1 stop8h 00mMultiple Airlines
Deal found 16/4£128
Tue 22/405:50DUB - FAO
Nonstop2h 55mMultiple Airlines
Sun 27/406:20FAO - DUB
1 stop27h 10mMultiple Airlines
Deal found 17/4£131
Fri 3/1008:55DUB - OPO
1 stop11h 05mKLM
Tue 7/1018:55OPO - DUB
1 stop13h 25mKLM
Deal found 16/4£132
Mon 25/811:10DUB - LIS
1 stop7h 30mKLM
Wed 3/905:00LIS - DUB
1 stop5h 25mKLM
Deal found 16/4£140
Thu 15/513:00DUB - FAO
1 stop28h 35mSWISS
Thu 22/518:30FAO - DUB
1 stop13h 20mSWISS
Deal found 17/4£150
Wed 1/1017:20DUB - FAO
1 stop14h 20mKLM
Sat 4/1021:05FAO - DUB
1 stop15h 30mKLM
Deal found 17/4£150

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 18 April 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

Tue 6/5

19:35-22:00

Nonstop2h 25m

Porto

Tue 13/5

22:25-00:50

Nonstop2h 25m

£60

DublinFaro

DUB - FAO

DUBFAO

Dublin

Sat 17/5

20:35-23:30

Nonstop2h 55m

Faro

Sun 18/5

07:00-10:00

Nonstop3h 00m

£69

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Wed 3/9

19:40-22:30

Nonstop2h 50m

Lisbon Humberto Delgado

Sat 13/9

06:30-09:15

Nonstop2h 45m

£72

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Wed 14/5

07:10-12:10

1 stop5h 00m

Lisbon Humberto Delgado

Sat 24/5

06:30-09:15

Nonstop2h 45m

£115

DublinPorto

DUB - OPO

DUBOPO

Dublin

Tue 6/5

21:30-22:55

1 stop25h 25m

Porto

Tue 13/5

22:00-15:30

1 stop17h 30m

£116

DublinFaro

DUB - FAO

DUBFAO

Dublin

Tue 13/5

07:35-10:35

Nonstop3h 00m

Faro

Fri 23/5

11:40-14:35

Nonstop2h 55m

£122

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Sun 5/10

05:30-08:25

Nonstop2h 55m

Lisbon Humberto Delgado

Sun 19/10

07:10-10:00

Nonstop2h 50m

£126

DublinPorto

DUB - OPO

DUBOPO

Dublin

Fri 3/10

08:55-20:00

1 stop11h 05m

Porto

Tue 7/10

18:55-08:20

1 stop13h 25m

£132

DublinFaro

DUB - FAO

DUBFAO

Dublin

Thu 15/5

13:00-17:35

1 stop28h 35m

Faro

Thu 22/5

18:30-07:50

1 stop13h 20m

£150

DublinFaro

DUB - FAO

DUBFAO

Dublin

Wed 1/10

17:20-07:40

1 stop14h 20m

Faro

Sat 4/10

21:05-12:35

1 stop15h 30m

£150

Flights are sorted by cheapest return flights first.

Deals found on 16/4

Showing 1-10 of 54 results
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6

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 £101). Flying from Ireland to Portugal in August is currently the most expensive (average of £274). 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 18 April 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 31% on flights from Ireland to Portugal by exploring options for tickets at midday.

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 30 March 2025.

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

Weekly flight availability from Ireland to Portugal

Explore weekly flight availability from Ireland to Portugal. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 18 April 2025.

The most flights from IE0 to PT0 are scheduled on a Thursday (9 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Portugal by month

Plan your trip to Portugal by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Portugal ranges from 2.0 - 116.0 inches per month. December is typically the wettest month, when rainfall can reach 116.0 mm. July is typically the driest time to visit Portugal when rainfall is around 2.0 mm.

Temperature in Portugal by month

Plan your trip to Portugal by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Portugal, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 24.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 12.0 C).

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 18 April 2025.
Read through reviews of airlines operating flights from Ireland to Portugal, such as Aegean Airlines, Emirates and KLM. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aegean Airlines
8.1
Very Good
734 reviews
Check prices

Overall

8.1

Boarding

7.8

Food

7.3

Crew

8.6

Comfort

7.8

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Aegean Airlines
8.1
Very Good
734 reviews
Aegean Airlines
8.1
Very Good
734 reviews
Check prices

Overall

8.1

Boarding

7.8

Food

7.3

Crew

8.6

Comfort

7.8

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Emirates
8.0
Very Good
3,200 reviews
Aegean Airlines
8.1
Very Good
734 reviews
Check prices

Overall

8.1

Boarding

7.8

Food

7.3

Crew

8.6

Comfort

7.8

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
KLM
7.8
Good
1,329 reviews
Aegean Airlines
8.1
Very Good
734 reviews
Check prices

Overall

8.1

Boarding

7.8

Food

7.3

Crew

8.6

Comfort

7.8

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Norwegian
7.8
Good
226 reviews
Aegean Airlines
8.1
Very Good
734 reviews
Check prices

Overall

8.1

Boarding

7.8

Food

7.3

Crew

8.6

Comfort

7.8

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Finnair
7.6
Good
1,269 reviews
Aegean Airlines
8.1
Very Good
734 reviews
Check prices

Overall

8.1

Boarding

7.8

Food

7.3

Crew

8.6

Comfort

7.8

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you

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 549 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    £37 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 £48 and £67, 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 £101). Flying from Ireland to Portugal in August is currently the most expensive (average of £274). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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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 18 April 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£58Average£165FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
Aer LingusCheapest£70Average£210FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
TAP AIR PORTUGALCheapest£72Average£175FlexibilityNo 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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