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Cheap flights from Ireland to Lisbon from £35

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
18 Oct — 25 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Ireland to Lisbon

Keep the following information in mind while searching for Ireland to Lisbon flight deals. Data was last updated 18 September 2025.

Round-trip from

£86

One-way from

£35

Popular in

June

Cheapest in

January

Average price

£139

Good round-trip deal

£114 or less

Good one-way deal

£67 or less
Ryanair
  • Ryanair
  • 17/10-21/10
  • Nonstop
  • 5h 35m total
  • Ireland to Lisbon
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Ryanair
  • Ryanair
  • 16/12
  • Nonstop
  • 2h 50m total
  • Ireland to Lisbon
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£18 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£4 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Ireland to Lisbon Humberto Delgado.
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Price to beat on a one-way flight from Ireland to Lisbon Humberto Delgado.
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Find flight deals from Ireland to Lisbon

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 18 September 2025.

Fri 17/1005:45DUB - LIS
Nonstop2h 50mRyanair
Tue 21/1009:35LIS - DUB
Nonstop2h 45mRyanair
Deal found 16/9£86
Mon 10/1107:15DUB - LIS
Nonstop2h 55mAer Lingus
Sat 15/1110:50LIS - DUB
Nonstop2h 55mAer Lingus
Deal found 16/9£86
Mon 6/1019:10DUB - LIS
Nonstop2h 50mMultiple Airlines
Wed 15/1006:25LIS - DUB
1 stop6h 40mMultiple Airlines
Deal found 17/9£92
Fri 31/1017:35DUB - LIS
Nonstop2h 50mRyanair
Fri 7/1116:15LIS - DUB
1 stop6h 50mRyanair
Deal found 16/9£93
Wed 15/1019:40DUB - LIS
Nonstop2h 50mMultiple Airlines
Wed 22/1006:00LIS - DUB
1 stop6h 50mMultiple Airlines
Deal found 17/9£97
Sat 25/1014:10DUB - LIS
Nonstop2h 50mRyanair
Mon 24/1121:30LIS - DUB
Nonstop2h 50mRyanair
Deal found 16/9£100
Fri 31/1008:30DUB - LIS
1 stop7h 10mMultiple Airlines
Mon 3/1121:30LIS - DUB
Nonstop2h 50mMultiple Airlines
Deal found 16/9£102
Fri 31/1008:30DUB - LIS
1 stop7h 10mMultiple Airlines
Fri 7/1110:05LIS - DUB
1 stop8h 15mMultiple Airlines
Deal found 16/9£103
Sat 15/1104:15DUB - LIS
Nonstop2h 55mTAP AIR PORTUGAL
Fri 21/1107:25LIS - DUB
Nonstop2h 55mTAP AIR PORTUGAL
Deal found 17/9£108
Wed 29/1017:00DUB - LIS
Nonstop2h 50mRyanair
Sat 1/1121:35LIS - DUB
Nonstop2h 50mRyanair
Deal found 17/9£110
Wed 29/1014:05DUB - LIS
1 stop5h 35mMultiple Airlines
Mon 3/1121:30LIS - DUB
Nonstop2h 50mMultiple Airlines
Deal found 16/9£111

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 18 September 2025.
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

Fri 17/10

05:45-08:35

Nonstop2h 50m

Lisbon Humberto Delgado

Tue 21/10

09:35-12:20

Nonstop2h 45m

£86

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Sat 25/10

14:10-17:00

Nonstop2h 50m

Lisbon Humberto Delgado

Mon 24/11

21:30-00:20

Nonstop2h 50m

£100

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Fri 31/10

08:30-15:40

1 stop7h 10m

Lisbon Humberto Delgado

Fri 7/11

10:05-18:20

1 stop8h 15m

£103

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Sat 15/11

04:15-07:10

Nonstop2h 55m

Lisbon Humberto Delgado

Fri 21/11

07:25-10:20

Nonstop2h 55m

£108

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Thu 12/2

16:15-23:25

1 stop7h 10m

Lisbon Humberto Delgado

Thu 26/2

10:50-13:45

Nonstop2h 55m

£114

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Sun 26/10

06:05-08:55

Nonstop2h 50m

Lisbon Humberto Delgado

Sat 1/11

21:35-00:25

Nonstop2h 50m

£118

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Fri 3/10

05:45-08:35

Nonstop2h 50m

Lisbon Humberto Delgado

Sat 11/10

21:55-00:40

Nonstop2h 45m

£120

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Fri 13/2

05:55-13:20

1 stop7h 25m

Lisbon Humberto Delgado

Thu 26/2

17:30-20:20

Nonstop2h 50m

£124

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Thu 30/10

17:15-20:05

Nonstop2h 50m

Lisbon Humberto Delgado

Sat 1/11

22:00-10:05

1 stop12h 05m

£135

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Thu 12/2

05:55-18:30

1 stop12h 35m

Lisbon Humberto Delgado

Thu 26/2

05:00-16:20

1 stop11h 20m

£136

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Showing 1-10 of 19 results
1
2

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 £101). Flying from Ireland to Lisbon 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 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 18 September 2025.

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 morning tend to be the most expensive. A flight at midday could potentially save you up to 54% on airfare.

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

Use this chart to determine the cheapest time to fly return from Ireland to Lisbon. Price data was last updated on 14 September 2025.

Travellers seeking maximum savings on their Ireland to Lisbon 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 Lisbon

Explore weekly flight availability from Ireland to Lisbon. 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 September 2025.

The most flights from IE0 to LIS are scheduled on a Monday (9 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).

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 18 September 2025.
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
1,277 reviews
Check prices

Entertainment

6.9

Food

6.5

Comfort

7.1

Overall

7.2

Boarding

7.3

Crew

8.0

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
1,277 reviews
Aer Lingus
7.2
Good
1,277 reviews
Check prices

Entertainment

6.9

Food

6.5

Comfort

7.1

Overall

7.2

Boarding

7.3

Crew

8.0

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
1,977 reviews
Aer Lingus
7.2
Good
1,277 reviews
Check prices

Entertainment

6.9

Food

6.5

Comfort

7.1

Overall

7.2

Boarding

7.3

Crew

8.0

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
5,159 reviews
Aer Lingus
7.2
Good
1,277 reviews
Check prices

Entertainment

6.9

Food

6.5

Comfort

7.1

Overall

7.2

Boarding

7.3

Crew

8.0

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 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, 489 users have taken a look at flights from Ireland to Lisbon Humberto Delgado.

  • How long is the flight from Ireland to Lisbon?

    Ryanair and TAP AIR PORTUGAL 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 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 American Airlines (91%), Aer Lingus (91%) or Azores Airlines (53%) 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 £24. On average you can expect to pay £617. The most popular route, (Dublin - Lisbon Humberto Delgado), can usually be booked for £264.

  • 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 £101). Flying from Ireland to Lisbon 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

Travelling to a place near Lisbon?

Book flights to Lisbon if you plan to visit one of these locations
Madeira
Setúbal
Oeiras
Fátima
Almada
Estoril
Beja
Sintra
Costa da Caparica
Óbidos
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 18 September 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£61Average£135FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
Aer LingusCheapest£67Average£156FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
TAP AIR PORTUGALCheapest£84Average£177FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights

Fly with Cheapflights

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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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