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Cheap flights from Dublin to Portugal from £22

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 29/8. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — LIS
5 Sep — 12 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap 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 6 August 2026.

Mon 21/919:35 -
Nonstop2h 25m
Fri 25/921:45 -
Nonstop2h 25m
Deal found 1/8£52
Tue 15/914:30 -
1 stop6h 10m
Tue 22/922:25 -
Nonstop2h 25m
Deal found 3/8£69
Wed 21/1020:45 -
Nonstop2h 25m
Sun 25/1020:35 -
Nonstop2h 25m
Deal found 5/8£74
Thu 3/907:55 -
1 stop5h 45m
Thu 10/922:20 -
Nonstop2h 25m
Deal found 4/8£78
Sun 13/920:25 -
Nonstop2h 55m
Sun 27/908:05 -
Nonstop2h 55m
Deal found 31/7£92
Sun 4/1008:15 -
1 stop14h 50m
Sun 11/1008:05 -
Nonstop2h 55m
Deal found 5/8£93
Fri 25/917:30 -
Nonstop2h 55m
Mon 28/907:50 -
Nonstop2h 55m
Deal found 4/8£94
Thu 12/1117:05 -
Nonstop2h 55m
Sun 15/1110:20 -
Nonstop3h 00m
Deal found 3/8£96
Tue 18/820:35 -
Nonstop2h 55m
Fri 21/809:00 -
1 stop15h 15m
Deal found 5/8£97
Sat 31/1009:40 -
Nonstop2h 55m
Sat 7/1106:15 -
Nonstop3h 00m
Deal found 4/8£100
Tue 8/905:45 -
2 stops15h 30m
Tue 22/906:05 -
1 stop11h 35m
Deal found 1/8£103
Tue 11/820:35 -
Nonstop2h 55m
Thu 13/816:40 -
Nonstop2h 55m
Deal found 1/8£104

Find flight deals from Dublin to Portugal

Keep the following information in mind while searching for Dublin to Portugal flight deals. Data was last updated 6 August 2026.

Round-trip from

£52

One-way from

£22

Popular in

July

Cheapest in

January

Average price

£126

Good round-trip deal

£124 or less

Good one-way deal

£84 or less
Ryanair
  • Ryanair
  • 21/9-25/9
  • Nonstop
  • 4h 50m total
  • Dublin to Portugal
Search Deals
Ryanair
  • Ryanair
  • 29/8
  • Nonstop
  • 2h 55m total
  • Dublin to Portugal
Search Deals
Highest demand for flights based on searches. 25% potential increase in price (£37 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a round-trip flight from Dublin to Portugal.
Search Deals
Price to beat on a one-way flight from Dublin to Portugal.
Search Deals

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 6 August 2026.
Use the filters below to find and compare flights from Dublin to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DublinPorto

DUB Dublin - OPO Porto

DUBOPO

Dublin

Mon 21/9

19:35-22:00

Nonstop2h 25m

Porto

Fri 25/9

21:45-00:10

Nonstop2h 25m

£52

DublinPorto

DUB Dublin - OPO Porto

DUBOPO

Dublin

Tue 15/9

19:20-21:45

Nonstop2h 25m

Porto

Tue 22/9

22:25-00:50

Nonstop2h 25m

£75

DublinPorto

DUB Dublin - OPO Porto

DUBOPO

Dublin

Tue 1/9

21:35-08:00

1 stop10h 25m

Porto

Tue 15/9

16:50-09:15

1 stop16h 25m

£99

DublinFaro

DUB Dublin - FAO Faro

DUBFAO

Dublin

Sat 31/10

18:00-20:55

Nonstop2h 55m

Faro

Sat 7/11

06:15-09:15

Nonstop3h 00m

£100

DublinLisbon

DUB Dublin - LIS Lisbon Humberto Delgado

DUBLIS

Dublin

Wed 9/9

17:55-20:45

Nonstop2h 50m

Lisbon Humberto Delgado

Sat 19/9

21:15-23:59

Nonstop2h 44m

£107

DublinPorto

DUB Dublin - OPO Porto

DUBOPO

Dublin

Fri 13/11

06:00-08:25

Nonstop2h 25m

Porto

Sun 15/11

09:20-11:45

Nonstop2h 25m

£108

DublinPorto

DUB Dublin - OPO Porto

DUBOPO

Dublin

Thu 3/9

19:30-21:55

Nonstop2h 25m

Porto

Thu 10/9

22:20-00:45

Nonstop2h 25m

£116

DublinPorto

DUB Dublin - OPO Porto

DUBOPO

Dublin

Thu 24/9

07:55-13:40

1 stop5h 45m

Porto

Mon 28/9

20:50-09:10

1 stop12h 20m

£117

DublinLisbon

DUB Dublin - LIS Lisbon Humberto Delgado

DUBLIS

Dublin

Wed 16/12

12:50-08:30

1 stop19h 40m

Lisbon Humberto Delgado

Mon 28/12

21:05-12:05

1 stop15h 00m

£130

DublinLisbon

DUB Dublin - LIS Lisbon Humberto Delgado

DUBLIS

Dublin

Thu 3/9

06:10-09:00

Nonstop2h 50m

Lisbon Humberto Delgado

Sun 6/9

05:55-08:40

Nonstop2h 45m

£131

Flights are sorted by cheapest return flights first.

Deals found on 1/8

Showing 1-10 of 57 resultsSorted by cheapest first
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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 £98). Flying from Dublin to Portugal in July is currently the most expensive (average of £214). 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 6 August 2026.

It’s typically best to fly out from Dublin to Portugal at midday. Doing so could potentially save you 33% on the flight price compared to flying in the evening, which is usually more expensive.

How often are flights from Dublin to Portugal delayed?

About 20% of weekly flights between Dublin 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 Dublin 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 Dublin to Portugal flights?

Over the past year, Aer Lingus have had the lowest number of delays on this route, with just 12% of flights being delayed.

How far ahead should I book a flight from Dublin to Portugal?

The price you pay for your flight from Dublin to Portugal may vary depending on when you book. For the best chance of a lower fare, look to book 73 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 1 August 2026.

Travellers seeking maximum savings on their Dublin to Portugal flight should consider departing on Monday mornings when fares are most often at their lowest. Monday 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 6 August 2026.
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
7.3
Good
1,689 reviews
Check prices

Boarding

7.4

Crew

8.1

Entertainment

7.0

Overall

7.3

Comfort

7.2

Food

6.7

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2026

DUB - OVD

It is a budget airlines and it feels like it. Cheap, but between us and our neighbors, one charger didn't work, one seat wouldn't lock and would collapse on the people behind us, and two food trays didn't lock in place well. It wasn't that big a deal - we just handled the fixtures carefully, but you get what you pay for.
Aer Lingus
7.3
Good
1,689 reviews
Aer Lingus
7.3
Good
1,689 reviews
Check prices

Boarding

7.4

Crew

8.1

Entertainment

7.0

Overall

7.3

Comfort

7.2

Food

6.7

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2026

DUB - OVD

It is a budget airlines and it feels like it. Cheap, but between us and our neighbors, one charger didn't work, one seat wouldn't lock and would collapse on the people behind us, and two food trays didn't lock in place well. It wasn't that big a deal - we just handled the fixtures carefully, but you get what you pay for.
TAP AIR PORTUGAL
7.2
Good
2,357 reviews
Aer Lingus
7.3
Good
1,689 reviews
Check prices

Boarding

7.4

Crew

8.1

Entertainment

7.0

Overall

7.3

Comfort

7.2

Food

6.7

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2026

DUB - OVD

It is a budget airlines and it feels like it. Cheap, but between us and our neighbors, one charger didn't work, one seat wouldn't lock and would collapse on the people behind us, and two food trays didn't lock in place well. It wasn't that big a deal - we just handled the fixtures carefully, but you get what you pay for.
Ryanair
6.9
Okay
5,456 reviews
Aer Lingus
7.3
Good
1,689 reviews
Check prices

Boarding

7.4

Crew

8.1

Entertainment

7.0

Overall

7.3

Comfort

7.2

Food

6.7

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2026

DUB - OVD

It is a budget airlines and it feels like it. Cheap, but between us and our neighbors, one charger didn't work, one seat wouldn't lock and would collapse on the people behind us, and two food trays didn't lock in place well. It wasn't that big a deal - we just handled the fixtures carefully, but you get what you pay for.

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 295 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, Vueling, and KLM can get you from Dublin to Portugal in just under 2h 25m. Your travel time can differ by up to 17h 15m. The distance between Dublin and Portugal is about 848 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    The cheapest airline one-way is Ryanair, with whom users have recently found tickets for as low as £21. However, be on the lookout for offers from Aer Lingus and TAP AIR PORTUGAL, as they are both options that can get you from Dublin to Portugal for a low price.

  • 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 (82%), Aer Lingus (79%), Azores Airlines( 70%).

  • What are the cheapest flights from Dublin to Portugal?

    The cheapest flight price from Dublin to Portugal is £40. On average you can expect to pay £158. The most popular route, (Dublin - Lisbon Humberto Delgado), can usually be booked for £107.

  • 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 £98). Flying from Dublin to Portugal in July is currently the most expensive (average of £214). 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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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 6 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£51Average£195FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
RyanairCheapest£53Average£148FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
TAP AIR PORTUGALCheapest£99Average£160FlexibilityNo 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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