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Cheap flights from Ireland to Lisbon 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 15/4. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — LIS
22 Feb — 1 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ireland to Lisbon

Enter your travel dates to find the best prices.

Cheapest flights from Ireland to Lisbon
Explore the most affordable flight options available from Ireland to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 January 2026.

Tue 10/310:25
DUB
-
LIS
Nonstop2h 50m
Ryanair
Sat 14/309:10
LIS
-
DUB
1 stop7h 25m
Ryanair
Deal found 22/1£63
Fri 15/519:05
DUB
-
LIS
Nonstop2h 50m
Ryanair
Mon 18/506:40
LIS
-
DUB
Nonstop2h 45m
Ryanair
Deal found 21/1£68
Thu 5/317:15
DUB
-
LIS
Nonstop2h 50m
Ryanair
Sun 8/309:55
LIS
-
DUB
Nonstop2h 50m
Ryanair
Deal found 21/1£70
Fri 27/217:35
DUB
-
LIS
Nonstop2h 50m
Ryanair
Mon 2/321:30
LIS
-
DUB
Nonstop2h 50m
Ryanair
Deal found 20/1£71
Sat 28/218:20
DUB
-
LIS
Nonstop2h 50m
Ryanair
Mon 2/322:00
LIS
-
DUB
1 stop9h 50m
Ryanair
Deal found 20/1£73
Fri 6/208:05
DUB
-
LIS
Nonstop2h 50m
Ryanair
Mon 9/221:30
LIS
-
DUB
Nonstop2h 50m
Ryanair
Deal found 20/1£77
Thu 5/213:55
DUB
-
LIS
Nonstop2h 50m
Multiple Airlines
Thu 5/219:35
LIS
-
DUB
1 stop11h 30m
Multiple Airlines
Deal found 22/1£83
Fri 17/419:05
DUB
-
LIS
Nonstop2h 50m
Ryanair
Sat 25/409:50
LIS
-
DUB
Nonstop2h 45m
Ryanair
Deal found 20/1£83
Thu 16/415:00
DUB
-
LIS
Nonstop2h 50m
Ryanair
Sat 25/409:50
LIS
-
DUB
Nonstop2h 45m
Ryanair
Deal found 20/1£86
Wed 28/108:55
DUB
-
LIS
1 stop12h 35m
Ryanair
Sat 31/110:30
LIS
-
DUB
1 stop9h 15m
Ryanair
Deal found 22/1£87
Wed 18/210:15
DUB
-
LIS
Nonstop2h 50m
Ryanair
Wed 25/220:35
LIS
-
DUB
Nonstop2h 50m
Ryanair
Deal found 21/1£90

Find flight deals from Ireland to Lisbon

Keep the following information in mind while searching for Ireland to Lisbon flight deals. Data was last updated 23 January 2026.

Round-trip from

£63

One-way from

£25

Popular in

June

Cheapest in

January

Average price

£91

Good round-trip deal

£103 or less

Good one-way deal

£34 or less
Ryanair
  • Ryanair
  • 10/3-14/3
  • 1 total stop
  • 10h 15m total
  • Ireland to Lisbon
Search Deals
Ryanair
  • Ryanair
  • 15/4
  • Nonstop
  • 2h 50m total
  • Ireland to Lisbon
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£24 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Ireland to Lisbon Humberto Delgado.
Search Deals
Price to beat on a one-way flight from Ireland to Lisbon Humberto Delgado.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Ireland to Lisbon 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 23 January 2026.
Use the filters below to find and compare flights from Ireland to Lisbon that are best for you.

Fly from

Ireland

Fly to

Lisbon

Route

Depart

Return

Price

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Thu 5/3

17:15-20:05

Nonstop2h 50m

Lisbon Humberto Delgado

Sun 8/3

09:55-12:45

Nonstop2h 50m

£70

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Sat 28/2

18:20-21:10

Nonstop2h 50m

Lisbon Humberto Delgado

Mon 2/3

22:00-07:50

1 stop9h 50m

£73

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Tue 10/2

09:40-18:05

1 stop8h 25m

Lisbon Humberto Delgado

Sat 14/2

21:45-00:35

Nonstop2h 50m

£77

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Fri 17/4

19:05-21:55

Nonstop2h 50m

Lisbon Humberto Delgado

Sat 25/4

09:50-12:35

Nonstop2h 45m

£83

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Fri 6/2

16:30-16:00

1 stop23h 30m

Lisbon Humberto Delgado

Mon 9/2

21:30-00:20

Nonstop2h 50m

£89

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Sat 14/3

17:00-23:15

1 stop6h 15m

Lisbon Humberto Delgado

Sun 15/3

09:55-12:45

Nonstop2h 50m

£91

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Tue 10/2

09:40-23:25

1 stop13h 45m

Lisbon Humberto Delgado

Sat 14/2

18:45-08:55

1 stop14h 10m

£92

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Thu 5/2

07:10-10:00

Nonstop2h 50m

Lisbon Humberto Delgado

Thu 5/2

21:15-15:05

2 stops17h 50m

£99

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Fri 15/5

19:05-21:55

Nonstop2h 50m

Lisbon Humberto Delgado

Mon 18/5

21:20-14:05

2 stops16h 45m

£109

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Fri 6/3

18:35-20:45

2 stops26h 10m

Lisbon Humberto Delgado

Fri 13/3

10:30-19:15

1 stop8h 45m

£112

Flights are sorted by cheapest return flights first.

Deals found on 20/1

Showing 1-10 of 23 results
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Best time to book a flight from Ireland to Lisbon

Have a flexible travel schedule? Discover the best time to fly to Lisbon 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 Lisbon

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

Currently, January is the cheapest month in which you can book a flight from Ireland to Lisbon (average of £39). Flying from Ireland to Lisbon in July is currently the most expensive (average of £93). 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 LIS?

Find hourly flight availability from Ireland to Lisbon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 23 January 2026.

One of the essential ways to save on airfare from Ireland to Lisbon is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at midday could potentially save you up to 68% on airfare.

How often are flights from Ireland to Lisbon delayed?

About 26% of weekly flights between Ireland and Lisbon have experienced delays in the past year, with the average delay time being 116 minutes.

What is the most punctual flight time for Ireland to Lisbon 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?

Saturday tends to have the lowest number of delays on this route, whereas Wednesday 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 Lisbon flights?

Over the past year, Aer Lingus have had the lowest number of delays on this route, with just 13% of flights being delayed.

Reviews of airlines servicing Lisbon

Get insights into the airlines that provide service to Lisbon. 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 Lisbon. Reviews last updated 23 January 2026.
Check out reviews from past customers who have flown with Aer Lingus, TAP AIR PORTUGAL, andRyanair from Ireland to Lisbon to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.2
Good
1,441 reviews
Check prices

Boarding

7.4

Entertainment

6.9

Overall

7.2

Comfort

7.1

Food

6.6

Crew

8.0

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
1,441 reviews
Aer Lingus
7.2
Good
1,441 reviews
Check prices

Boarding

7.4

Entertainment

6.9

Overall

7.2

Comfort

7.1

Food

6.6

Crew

8.0

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
2,124 reviews
Aer Lingus
7.2
Good
1,441 reviews
Check prices

Boarding

7.4

Entertainment

6.9

Overall

7.2

Comfort

7.1

Food

6.6

Crew

8.0

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
6.9
Okay
5,250 reviews
Aer Lingus
7.2
Good
1,441 reviews
Check prices

Boarding

7.4

Entertainment

6.9

Overall

7.2

Comfort

7.1

Food

6.6

Crew

8.0

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 Lisbon. 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 into for flights to Lisbon from Ireland?

    For a flight from Ireland to Lisbon, you will be flying into Humberto Delgado. Lisbon Humberto Delgado (LIS) is just 4.2 mi from the center of the city.

  • How popular is this Ireland to Lisbon flight route?

    Within the past month, 419 users have taken a look at flights from Ireland to Lisbon Humberto Delgado.

  • How long is the flight from Ireland to Lisbon?

    Ryanair can get you from Ireland to Lisbon in just under 2h 50m. Your travel time will be generally consistent. The distance from Ireland to Lisbon is about 1021 mi. All flights are typically direct.

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

    One-way options have recently been found by users for as low as £22 on Ryanair. Other airlines that offer cheap prices include TAP AIR PORTUGAL from £36 and Aer Lingus from £36 one-way.

  • What are the most reliable airlines from Ireland to Lisbon?

    No one likes to see their flight delayed. When booking a flight from Ireland to Lisbon consider choosing Aer Lingus (79%), American Airlines (75%) or Azores Airlines (61%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Ireland to Lisbon?

    The cheapest flight price from Ireland to Lisbon is £31. On average you can expect to pay £142. The most popular route, (Dublin - Lisbon Humberto Delgado), can usually be booked for £226.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Ireland to Lisbon (average of £39). Flying from Ireland to Lisbon in July is currently the most expensive (average of £93). 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

Travelling to a place near Lisbon?

Book flights to Lisbon if you plan to visit one of these locations
Setúbal
Oeiras
Madeira
Fátima
Estoril
Óbidos
Almada
Beja
Sintra
Costa da Caparica
Nazaré
Sesimbra
Peniche

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Alternative routes for Ireland to Lisbon

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 Lisbon

Discover the top 3 airlines that operate flights from Ireland to Lisbon. 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 23 January 2026.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£57Average£130FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
Aer LingusCheapest£66Average£154FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
TAP AIR PORTUGALCheapest£77Average£170FlexibilityNo 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 Lisbon?

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 Lisbon from Ireland today with Cheapflights!

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

Cheapflights helps you find that perfect flight to Lisbon from Ireland by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Ireland to Lisbon with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Ireland to Lisbon flexibly with Cheapflights today.

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

Of course! You can now track prices for flights from Ireland to Lisbon 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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