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Cheap flights from Dublin to Portugal from £19

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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — LIS
21 Nov — 28 Nov1
1 adult
1 adult, Economy

Cheap flight deals from Dublin to Portugal

Keep the following information in mind while searching for Dublin to Portugal flight deals. Data was last updated 22 October 2025.

Round-trip from

£43

One-way from

£19

Popular in

July

Cheapest in

January

Average price

£188

Good round-trip deal

£78 or less

Good one-way deal

£35 or less
Ryanair
  • Ryanair
  • 6/12-12/12
  • Nonstop
  • 4h 40m total
  • Dublin to Portugal
Search Deals
Ryanair
  • Ryanair
  • 5/12
  • Nonstop
  • 2h 50m total
  • Dublin to Portugal
Search Deals
Highest demand for flights based on searches. 28% potential increase in price (£45 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Dublin to Portugal.
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Price to beat on a one-way flight from Dublin to Portugal.
Search Deals

Find flight deals from Dublin to Portugal

Enter your travel dates to find the best prices.

Cheapest flights from Dublin to Portugal
Explore the most affordable flight options available from Dublin to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 October 2025.

Sat 6/1217:15DUB - OPO
Nonstop2h 20mRyanair
Fri 12/1209:45OPO - DUB
Nonstop2h 20mRyanair
Deal found 19/10£43
Fri 5/1212:30DUB - OPO
Nonstop2h 20mRyanair
Fri 12/1209:45OPO - DUB
Nonstop2h 20mRyanair
Deal found 21/10£49
Sat 22/1108:55DUB - OPO
Nonstop2h 20mRyanair
Sun 23/1107:55OPO - DUB
Nonstop2h 20mRyanair
Deal found 20/10£52
Sat 22/1108:55DUB - OPO
Nonstop2h 20mRyanair
Mon 24/1106:30OPO - DUB
Nonstop2h 20mRyanair
Deal found 21/10£56
Thu 11/1212:35DUB - OPO
Nonstop2h 20mRyanair
Sun 14/1207:55OPO - DUB
Nonstop2h 20mRyanair
Deal found 20/10£58
Thu 4/1212:35DUB - OPO
Nonstop2h 20mRyanair
Thu 11/1215:20OPO - DUB
Nonstop2h 20mRyanair
Deal found 20/10£59
Fri 12/1212:30DUB - OPO
Nonstop2h 20mRyanair
Mon 15/1206:30OPO - DUB
Nonstop2h 20mRyanair
Deal found 21/10£64
Thu 20/1107:10DUB - LIS
Nonstop2h 50mRyanair
Sun 23/1109:55LIS - DUB
Nonstop2h 50mRyanair
Deal found 21/10£65
Thu 11/1206:55DUB - FAO
1 stop7h 40mRyanair
Thu 18/1217:45FAO - DUB
Nonstop2h 50mRyanair
Deal found 20/10£77
Wed 5/1117:00DUB - LIS
Nonstop2h 50mRyanair
Mon 10/1121:30LIS - DUB
Nonstop2h 50mRyanair
Deal found 20/10£77
Fri 28/1112:30DUB - OPO
Nonstop2h 20mRyanair
Mon 1/1206:30OPO - DUB
Nonstop2h 20mRyanair
Deal found 20/10£77
Fri 5/1217:25DUB - FAO
1 stop5h 55mRyanair
Fri 12/1214:20FAO - DUB
Nonstop2h 50mRyanair
Deal found 21/10£78

Cheapflights Fare Finder

 
Customise your flight search to find flights from Dublin 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 22 October 2025.
Use the filters below to find and compare flights from Dublin to Portugal that are best for you.

Fly from

Dublin

Fly to

Portugal

Route

Depart

Return

Price

DublinPorto

DUB - OPO

DUBOPO

Dublin

Sat 6/12

17:15-19:35

Nonstop2h 20m

Porto

Fri 12/12

09:45-12:05

Nonstop2h 20m

£43

DublinPorto

DUB - OPO

DUBOPO

Dublin

Fri 5/12

12:30-14:50

Nonstop2h 20m

Porto

Fri 12/12

09:45-12:05

Nonstop2h 20m

£49

DublinPorto

DUB - OPO

DUBOPO

Dublin

Sat 22/11

08:55-11:15

Nonstop2h 20m

Porto

Sun 23/11

07:55-10:15

Nonstop2h 20m

£52

DublinPorto

DUB - OPO

DUBOPO

Dublin

Sat 22/11

08:55-11:15

Nonstop2h 20m

Porto

Mon 24/11

06:30-08:50

Nonstop2h 20m

£56

DublinPorto

DUB - OPO

DUBOPO

Dublin

Thu 4/12

12:35-14:55

Nonstop2h 20m

Porto

Thu 11/12

15:20-17:40

Nonstop2h 20m

£59

DublinPorto

DUB - OPO

DUBOPO

Dublin

Fri 12/12

12:30-14:50

Nonstop2h 20m

Porto

Mon 15/12

06:30-08:50

Nonstop2h 20m

£64

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Sun 7/12

12:05-14:55

Nonstop2h 50m

Lisbon Humberto Delgado

Wed 10/12

17:40-23:50

1 stop6h 10m

£65

DublinFaro

DUB - FAO

DUBFAO

Dublin

Sun 11/1

14:20-17:10

Nonstop2h 50m

Faro

Sun 18/1

10:15-13:05

Nonstop2h 50m

£65

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Thu 20/11

07:10-10:00

Nonstop2h 50m

Lisbon Humberto Delgado

Sun 23/11

09:55-12:45

Nonstop2h 50m

£65

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Wed 5/11

17:00-19:50

Nonstop2h 50m

Lisbon Humberto Delgado

Mon 10/11

21:30-00:20

Nonstop2h 50m

£77

Flights are sorted by cheapest return flights first.

Deals found on 21/10

Showing 1-10 of 60 results
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6

Best time to book a flight from Dublin to Portugal

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

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

Currently, January is the cheapest month in which you can book a flight from Dublin to Portugal (average of £22). Flying from Dublin to Portugal in July is currently the most expensive (average of £94). 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 DUB to PT?

Find hourly flight availability from Dublin 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 22 October 2025.

It’s typically best to fly out from Dublin to Portugal in the evening. Doing so could potentially save you 50% on the flight price compared to flying in the morning, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly return from Dublin to Portugal. Price data was last updated on 19 October 2025.

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

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 22 October 2025.
Read through reviews of airlines operating flights from Dublin to Portugal, such as Aer Lingus, TAP AIR PORTUGAL, andRyanair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.2
Good
1,350 reviews
Check prices

Crew

8.0

Boarding

7.3

Overall

7.2

Comfort

7.1

Food

6.5

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Anonymous,Jul 2025

DUB - ORD

The inability to check in with the final leg of our flight via the Aers Lingus app led to a stressful trip as the final leg was overbooked and we were not able to confirm a seat until we had arrived to Chicago. Lack of earphones for the "entertainment" system were not voluntarily provided or even referenced as available (even for a charge) while boarding the plane - this seems like an oversight.
Aer Lingus
7.2
Good
1,350 reviews
Aer Lingus
7.2
Good
1,350 reviews
Check prices

Crew

8.0

Boarding

7.3

Overall

7.2

Comfort

7.1

Food

6.5

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Anonymous,Jul 2025

DUB - ORD

The inability to check in with the final leg of our flight via the Aers Lingus app led to a stressful trip as the final leg was overbooked and we were not able to confirm a seat until we had arrived to Chicago. Lack of earphones for the "entertainment" system were not voluntarily provided or even referenced as available (even for a charge) while boarding the plane - this seems like an oversight.
TAP AIR PORTUGAL
7.1
Good
2,029 reviews
Aer Lingus
7.2
Good
1,350 reviews
Check prices

Crew

8.0

Boarding

7.3

Overall

7.2

Comfort

7.1

Food

6.5

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Anonymous,Jul 2025

DUB - ORD

The inability to check in with the final leg of our flight via the Aers Lingus app led to a stressful trip as the final leg was overbooked and we were not able to confirm a seat until we had arrived to Chicago. Lack of earphones for the "entertainment" system were not voluntarily provided or even referenced as available (even for a charge) while boarding the plane - this seems like an oversight.
Ryanair
6.8
Okay
5,181 reviews
Aer Lingus
7.2
Good
1,350 reviews
Check prices

Crew

8.0

Boarding

7.3

Overall

7.2

Comfort

7.1

Food

6.5

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Anonymous,Jul 2025

DUB - ORD

The inability to check in with the final leg of our flight via the Aers Lingus app led to a stressful trip as the final leg was overbooked and we were not able to confirm a seat until we had arrived to Chicago. Lack of earphones for the "entertainment" system were not voluntarily provided or even referenced as available (even for a charge) while boarding the plane - this seems like an oversight.

Related info for your journey

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

  • What airport do you fly from for flights from Dublin to Portugal?

    Dublin (DUB), located 5.7 mi from the city center, is the airport you fly out of when you book flights from Dublin to Portugal.

  • How popular is this Dublin to Portugal flight route?

    The Dublin to Portugal flight path was viewed by 467 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 Dublin to Portugal?

    Ryanair and Aer Lingus can get you from Dublin to Portugal in just under 2h 20m. Your travel time will be generally consistent. The distance between Dublin and Portugal is about 848 mi. Generally, flights for this route are direct.

  • What are the most popular routes from Dublin to Portugal?

    The most popular route from Dublin to Portugal is Dublin - Lisbon Humberto Delgado. You may also consider Dublin - Faro or Dublin - Porto.

  • What are the most reliable airlines from Dublin to Portugal?

    Before booking your flight to Portugal from Dublin, check out the most reliable airlines to get you to your destination on time: American Airlines (89%), Aer Lingus (89%), Portugalia( 63%).

  • What are the cheapest flights from Dublin to Portugal?

    The cheapest flight price from Dublin to Portugal is £21. On average you can expect to pay £149. The most popular route, (Dublin - Lisbon Humberto Delgado), can usually be booked for £563.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Dublin to Portugal (average of £22). Flying from Dublin to Portugal in July is currently the most expensive (average of £94). 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

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Top 3 airlines flying from Dublin to Portugal

Discover the top 3 airlines that operate flights from Dublin 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 22 October 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£55Average£149FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
Aer LingusCheapest£68Average£187FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
TAP AIR PORTUGALCheapest£87Average£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 Dublin to Portugal?

Deals for Dublin to Portugal flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Dublin to Portugal.

Can Cheapflights find flights from Dublin to Portugal with no change fees?

Yes, we can. To see specific flights from Dublin to Portugal with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Of course! You can now track prices for flights from Dublin to Portugal and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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