What is the cheapest airline that flies from Ireland to Lisbon Humberto Delgado?

Ryanair, Vueling, and Aer Lingus are the most popular carriers operating from Ireland to Lisbon Humberto Delgado

How many flights depart from Ireland to Lisbon on average per week?

As of August 2025, 36 flights take off from Ireland and land in Lisbon each week. The most common flight departure day for this route is Thu, with 25% of weekly flights taking off on this day.

How many flights depart from Ireland to Lisbon on average per day?

The number of flights available between Ireland and Lisbon is 5 per day as of August 2025. The most frequent departure time is 18:00, with 50% of daily flights leaving in the evening.

Which airlines fly to Lisbon?

Ryanair, TAP AIR PORTUGAL and Aer Lingus are the top three most popular airlines that fly to Lisbon from Ireland according to our data. Ryanair is the first choice among our users, with 52% of people opting to fly with this airline when travelling to Lisbon. Keep in mind that there are 4 different airlines that fly to Lisbon on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Ireland to Lisbon Humberto Delgado Airport?

Prices for flights from Ireland to Lisbon Humberto Delgado Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Ireland to Lisbon Humberto Delgado Airport?

As of August 2025, there are 4 operators available to choose from for flights from Ireland to Lisbon Humberto Delgado Airport.

How old do you have to be to fly from Ireland to Lisbon Humberto Delgado Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ireland to Lisbon Humberto Delgado Airport.

What documentation or ID do you need to fly to Lisbon Humberto Delgado Airport?

The travel and health documents you'll need for your trip to Lisbon Humberto Delgado Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lisbon Humberto Delgado Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£26 Cheap Flights from Ireland to Lisbon in 2025

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Ireland to Lisbon

Round-trip

One-way

Last minute

Direct

Recent return flight deals from Ireland to Lisbon

14:10 - 17:00DUB-LIS

2h 50mdirect

05:55 - 08:40LIS-DUB

2h 45mdirect

£53Ryanair

Find Deal

Sat, 13 Sep - Sun, 14 Sep

18:05 - 20:55DUB-LIS

2h 50mdirect

21:45 - 00:30LIS-DUB

2h 45mdirect

£53Ryanair

Find Deal

Sat, 20 Sep - Fri, 26 Sep

18:05 - 20:55DUB-LIS

2h 50mdirect

06:30 - 09:15LIS-DUB

2h 45mdirect

£59Ryanair

Find Deal

Sat, 20 Sep - Sat, 27 Sep

18:45 - 21:35DUB-LIS

2h 50mdirect

22:15 - 00:59LIS-DUB

2h 44mdirect

£104Aer Lingus

Find Deal

Tue, 23 Sep - Tue, 30 Sep

19:05 - 08:15DUB-LIS

13h 10m1 stop

22:15 - 00:59LIS-DUB

2h 44mdirect

£105

Find Deal

Sat, 20 Sep - Fri, 26 Sep

04:15 - 07:10DUB-LIS

2h 55mdirect

20:25 - 23:20LIS-DUB

2h 55mdirect

£117TAP AIR PORTUGAL

Find Deal

Sat, 15 Nov - Fri, 21 Nov

04:15 - 07:10DUB-LIS

2h 55mdirect

20:25 - 23:20LIS-DUB

2h 55mdirect

£118TAP AIR PORTUGAL

Find Deal

Sat, 15 Nov - Fri, 21 Nov

13:20 - 21:30DUB-LIS

8h 10m1 stop

20:40 - 23:30LIS-DUB

2h 50mdirect

£124

Find Deal

Fri, 28 Nov - Sun, 30 Nov

09:15 - 22:50DUB-LIS

13h 35m1 stop

12:30 - 22:45LIS-DUB

10h 15m1 stop

£163Lufthansa

Find Deal

Sun, 16 Nov - Fri, 21 Nov

09:25 - 22:50DUB-LIS

13h 25m1 stop

05:00 - 11:10LIS-DUB

6h 10m1 stop

£164Lufthansa

Find Deal

Fri, 30 Jan - Sat, 7 Feb

Ryanair flights from Ireland to Lisbon

Our best Ryanair deals on Ireland to Lisbon flight tickets

Ryanair

13 Sept

DUB14:10Dublin

2h 50m

LIS17:00Lisbon Humberto Delgado

14 Sept

LIS05:55Lisbon Humberto Delgado

2h 45m

DUB08:40Dublin

£53

Find similar

Ryanair

20 Sept

DUB18:05Dublin

2h 50m

LIS20:55Lisbon Humberto Delgado

26 Sept

LIS21:45Lisbon Humberto Delgado

2h 45m

DUB00:30Dublin

£53

Find similar

Ryanair

20 Sept

DUB18:05Dublin

2h 50m

LIS20:55Lisbon Humberto Delgado

27 Sept

LIS06:30Lisbon Humberto Delgado

2h 45m

DUB09:15Dublin

£59

Find similar

Lufthansa flights from Ireland to Lisbon

Our best Lufthansa deals on Ireland to Lisbon flight tickets

Lufthansa

16 Nov

DUB09:15Dublin

13h 35m

1 stop

LIS22:50Lisbon Humberto Delgado

21 Nov

LIS12:30Lisbon Humberto Delgado

10h 15m

1 stop

DUB22:45Dublin

£163

Find similar

Lufthansa

30 Jan

DUB09:25Dublin

13h 25m

1 stop

LIS22:50Lisbon Humberto Delgado

7 Feb

LIS05:00Lisbon Humberto Delgado

6h 10m

1 stop

DUB11:10Dublin

£164

Find similar

Lufthansa

14 Aug

DUB05:55Dublin

16h 10m

1 stop

LIS22:05Lisbon Humberto Delgado

17 Aug

LIS05:05Lisbon Humberto Delgado

27h 05m

1 stop

DUB08:10Dublin

£297

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Sat 13/9

14:10-17:00

Nonstop2h 50m

Lisbon Humberto Delgado

Sun 14/9

05:55-08:40

Nonstop2h 45m

£53

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Sat 20/9

18:05-20:55

Nonstop2h 50m

Lisbon Humberto Delgado

Fri 26/9

21:45-00:30

Nonstop2h 45m

£53

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Sat 20/9

18:05-20:55

Nonstop2h 50m

Lisbon Humberto Delgado

Sat 27/9

06:30-09:15

Nonstop2h 45m

£59

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Tue 23/9

18:45-21:35

Nonstop2h 50m

Lisbon Humberto Delgado

Tue 30/9

22:15-00:59

Nonstop2h 44m

£104

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Sat 20/9

19:05-08:15

1 stop13h 10m

Lisbon Humberto Delgado

Fri 26/9

22:15-00:59

Nonstop2h 44m

£105

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Sat 15/11

04:15-07:10

Nonstop2h 55m

Lisbon Humberto Delgado

Fri 21/11

20:25-23:20

Nonstop2h 55m

£117

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Sat 15/11

04:15-07:10

Nonstop2h 55m

Lisbon Humberto Delgado

Fri 21/11

20:25-23:20

Nonstop2h 55m

£118

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Fri 28/11

13:20-21:30

1 stop8h 10m

Lisbon Humberto Delgado

Sun 30/11

20:40-23:30

Nonstop2h 50m

£124

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Sun 16/11

09:15-22:50

1 stop13h 35m

Lisbon Humberto Delgado

Fri 21/11

12:30-22:45

1 stop10h 15m

£163

DublinLisbon

DUB - LIS

DUBLIS

Dublin

Fri 30/1

09:25-22:50

1 stop13h 25m

Lisbon Humberto Delgado

Sat 7/2

05:00-11:10

1 stop6h 10m

£164

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ireland to Lisbon

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Lisbon?

In general, January is the cheapest month to fly from Ireland to Lisbon. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £85. If you are unable to visit Lisbon during the month of January, then departing from Ireland during the month February is also very affordable. Most momondo users find prices during this month for around £97.

What is the cheapest day to depart on your flight to Lisbon?

The cheapest day to depart on your flight to Lisbon is on a Tuesday when prices can be found for as low as £189. This is often the case because there is less demand to fly during this day of the week. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Ireland to Lisbon for around £306.

What is the cheapest time of day to depart on your flight to Lisbon?

At midday is the cheapest time of day to fly from Ireland to Lisbon when you can find flight prices for as low as £127. Flying to Lisbon at midday is an ideal time because this is during off-peak travel hours. Flights to Lisbon are more costly in the morning, with an average ticket price of £260. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Ireland to Lisbon Humberto Delgado flight route?

Fly from Dublin to Lisbon Humberto Delgado for the best Ireland - Lisbon Humberto Delgado flight prices

How far in advance should I book a flight to Lisbon?

You are more likely to see cheaper flights to Lisbon from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to Lisbon for around £144 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Lisbon from Ireland for as low as £99 on momondo.

What cabin class options are available on Ireland to Lisbon Humberto Delgado flights?

There are 3 cabin classes available to choose from on Ireland to Lisbon Humberto Delgado flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Ireland to Lisbon flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ireland to Lisbon

Best price found	£26
Fastest flight time	2h 45m
Direct flights	Every day
Airports in Lisbon	1 airport

The best one-way flight to Lisbon from Ireland in the past 72 hours is £26. The best return flight deal from Ireland to Lisbon found on momondo in the last 72 hours is £53.

The fastest flight from Ireland to Lisbon takes 2h 45m

Direct flights go from Ireland to Lisbon every day.

There is 1 airport near Lisbon: Lisbon Humberto Delgado (LIS)

Search flight deals

When did momondo last update prices for flights from Ireland to Lisbon Humberto Delgado Airport?
Prices for flights from Ireland to Lisbon Humberto Delgado Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Ireland to Lisbon Humberto Delgado Airport?
As of August 2025, there are 4 operators available to choose from for flights from Ireland to Lisbon Humberto Delgado Airport.
How old do you have to be to fly from Ireland to Lisbon Humberto Delgado Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ireland to Lisbon Humberto Delgado Airport.
What documentation or ID do you need to fly to Lisbon Humberto Delgado Airport?
The travel and health documents you'll need for your trip to Lisbon Humberto Delgado Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lisbon Humberto Delgado Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Ireland to Lisbon?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Ireland to Lisbon is Airbus A320-100/200 (24.83% of total bookings). The next most popular plane models are Embraer 195 (20.55%), Boeing 737 MAX 8 (16.74%), and Embraer 190 (13.66%).

Best airlines flying from Ireland to Lisbon

Compare and see reviews for airlines that fly from Ireland to Lisbon with momondo

Airline	Rating	Free Cancellation	Price
Ryanair	PriceFrom £63	Free Cancellation	Rating 6.8 5,157 reviews	Search Ryanair flights
Aer Lingus	PriceFrom £69	Free Cancellation	Rating 7.1 1,201 reviews	Search Aer Lingus flights
TAP AIR PORTUGAL	PriceFrom £86	Free Cancellation	Rating 7.1 1,942 reviews	Search TAP AIR PORTUGAL flights
KLM	PriceFrom £147	Free Cancellation	Rating 7.8 1,381 reviews	Search KLM flights

Almada

Fátima

Madeira

Estoril

Sintra

Setúbal

Sesimbra

Oeiras

Nazaré

Figueira da Foz

Evora

Costa da Caparica

Leiria

Torres Vedras

Caldas da Rainha

Ericeira

Óbidos

Tomar

Peniche

Sines

Why use momondo?

Why should I use momondo to find a flight deal from Ireland to Lisbon?

It is quick and easy to find Ireland to Lisbon flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Lisbon that suits you.

Can I find flights from Ireland to Lisbon with flexible booking policies on momondo?

momondo does allow users to show only those flights to Lisbon from Ireland which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Ireland to Lisbon?

Once all potential Ireland to Lisbon flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ireland to Lisbon right now. Can momondo alert me if prices change?

Price alerts on flights to Lisbon from Ireland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Lisbon trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Tue 12/8

Tue 19/8

Email me momondo's favourite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Portugal

Airports servicing Portugal

Cheap flights from Ireland to Lisbon from £26

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to Lisbon departing on 13/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Ireland to Lisbon

Recent return flight deals from Ireland to Lisbon

Recent one-way flight deals from Ireland to Lisbon

Recent last minute flight deals from Ireland to Lisbon

Recent direct flight deals from Ireland to Lisbon

Ryanair flights from Ireland to Lisbon

Our best Ryanair deals on Ireland to Lisbon flight tickets

Lufthansa flights from Ireland to Lisbon

Our best Lufthansa deals on Ireland to Lisbon flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Ireland to Lisbon that are best for you.

See travel insights to Lisbon from

How to get the cheapest flight ticket from Ireland to Lisbon

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Lisbon?

What is the cheapest day to depart on your flight to Lisbon?

What is the cheapest time of day to depart on your flight to Lisbon?

What is the cheapest Ireland to Lisbon Humberto Delgado flight route?

Fly from Dublin to Lisbon Humberto Delgado for the best Ireland - Lisbon Humberto Delgado flight prices

How far in advance should I book a flight to Lisbon?

What cabin class options are available on Ireland to Lisbon Humberto Delgado flights?

There are 3 cabin classes available to choose from on Ireland to Lisbon Humberto Delgado flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

What is the cheapest airline that flies from Ireland to Lisbon Humberto Delgado?

Ryanair, Vueling, and Aer Lingus are the most popular carriers operating from Ireland to Lisbon Humberto Delgado

Which airlines fly to Lisbon?

How many flights depart from Ireland to Lisbon on average per day?

The number of flights available between Ireland and Lisbon is 5 per day as of August 2025. The most frequent departure time is 18:00, with 50% of daily flights leaving in the evening.

How many flights depart from Ireland to Lisbon on average per week?

As of August 2025, 36 flights take off from Ireland and land in Lisbon each week. The most common flight departure day for this route is Thu, with 25% of weekly flights taking off on this day.

Cheap Ireland to Lisbon flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ireland to Lisbon

Best price found

Fastest flight time

Direct flights

Airports in Lisbon

When did momondo last update prices for flights from Ireland to Lisbon Humberto Delgado Airport?

How many operators does momondo search for flights from Ireland to Lisbon Humberto Delgado Airport?

How old do you have to be to fly from Ireland to Lisbon Humberto Delgado Airport?

What documentation or ID do you need to fly to Lisbon Humberto Delgado Airport?

What is the most popular plane model from Ireland to Lisbon?

Best airlines flying from Ireland to Lisbon

Compare and see reviews for airlines that fly from Ireland to Lisbon with momondo

Travelling to a place near Lisbon?

Why use momondo?

Why should I use momondo to find a flight deal from Ireland to Lisbon?

Can I find flights from Ireland to Lisbon with flexible booking policies on momondo?

How can momondo help me find flights from Ireland to Lisbon?

I’m not ready to book a flight from Ireland to Lisbon right now. Can momondo alert me if prices change?

An easier way to manage your Lisbon trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Portugal

Airports servicing Portugal