£49 Find Cheap Flights from Ireland to Lisbon – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Lisbon departing on 18/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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1 adult, Economy, 0 bags

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Cheap Flights from Ireland to Lisbon

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Ireland to Lisbon that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Ireland to Lisbon

Sun, 30 Aug - Thu, 3 Sep
Ryanair Logo
19:05 - 21:55
DUB
-
LIS
2h 50mdirect
Ryanair Logo
09:25 - 12:10
LIS
-
DUB
2h 45mdirect
£122Ryanair
Wed, 26 Aug - Tue, 1 Sep
Ryanair Logo
17:55 - 20:45
DUB
-
LIS
2h 50mdirect
Ryanair Logo
20:35 - 07:35
LIS
-
DUB
11h 00m
1 stop
£123Ryanair
Sun, 30 Aug - Tue, 1 Sep
Ryanair Logo
19:05 - 21:55
DUB
-
LIS
2h 50mdirect
Ryanair Logo
06:30 - 09:15
LIS
-
DUB
2h 45mdirect
£123Ryanair
Wed, 26 Aug - Tue, 1 Sep
Multiple Airlines Logo
18:40 - 21:35
DUB
-
LIS
2h 55mdirect
Multiple Airlines Logo
06:30 - 09:15
LIS
-
DUB
2h 45mdirect
£128Multiple Airlines
Thu, 19 Nov - Sun, 22 Nov
Multiple Airlines Logo
05:45 - 14:40
DUB
-
LIS
8h 55m
1 stop
Multiple Airlines Logo
18:30 - 09:00
LIS
-
DUB
14h 30m
1 stop
£134Multiple Airlines
Wed, 26 Aug - Wed, 2 Sep
Multiple Airlines Logo
11:25 - 22:30
DUB
-
LIS
11h 05m
1 stop
Multiple Airlines Logo
17:20 - 12:15
LIS
-
DUB
18h 55m
2 stops
£134Multiple Airlines
Sun, 23 Aug - Wed, 26 Aug
Aer Lingus Logo
18:40 - 21:35
DUB
-
LIS
2h 55mdirect
Aer Lingus Logo
22:15 - 00:59
LIS
-
DUB
2h 44mdirect
£139Aer Lingus
Wed, 26 Aug - Tue, 1 Sep
Aer Lingus Logo
18:40 - 21:35
DUB
-
LIS
2h 55mdirect
Aer Lingus Logo
22:15 - 00:59
LIS
-
DUB
2h 44mdirect
£173Aer Lingus
Sun, 27 Sep - Wed, 30 Sep
TAP AIR PORTUGAL Logo
05:30 - 08:25
DUB
-
LIS
2h 55mdirect
TAP AIR PORTUGAL Logo
07:10 - 10:00
LIS
-
DUB
2h 50mdirect
£182TAP AIR PORTUGAL
Sun, 9 Aug - Fri, 14 Aug
TAP AIR PORTUGAL Logo
18:50 - 21:45
DUB
-
LIS
2h 55mdirect
TAP AIR PORTUGAL Logo
07:10 - 10:00
LIS
-
DUB
2h 50mdirect
£192TAP AIR PORTUGAL
Booking Insights

KAYAK's insights & trends for flights to Lisbon

Get data-powered insights and trends into flights to Lisbon to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest day to fly to Lisbon?

The average price of all round-trip flights to Lisbon clicked on KAYAK for each day over the last 12 months.

Based on KAYAK data, the cheapest day to fly to Lisbon is Thursday where round-trip tickets can be as cheap as £173. On the other hand, the most expensive day to fly is Saturday, where round-trip prices are £221 on average.

What is the cheapest month to fly to Lisbon?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights to Lisbon, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to Lisbon is January, where tickets cost £92 on average for return flights. On the other hand, the most expensive months are July and December, where the average cost of tickets from Ireland is £188 and £181 respectively. For one-way flights, the best month to travel is January with an average price of £50.

What is the cheapest time of day to fly to Lisbon?

The average price for all round-trip flights to Lisbon depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Lisbon is generally in the afternoon, when round-trip flights cost £89 on average. The most expensive time of day to fly to Lisbon is generally at night, which is peak travel time and where the average cost of a ticket is £470.

What is a good deal for flights to Lisbon?

If you’re looking for cheap airfare to Lisbon, 25% of our users found tickets to Lisbon for the following prices or less: From Dublin £155 return.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Lisbon, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 2 weeks before departure, which saves you about 30% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Good to know - Cheap tickets from Ireland to Lisbon

Low season

January

Cheapest flight

£49
Best time to beat the crowds (35% less expensive on average)
Most popular time to fly (6% more expensive on average)
Flight from Dublin to Lisbon

FAQs - booking Lisbon flights

  • How far is Lisbon Humberto Delgado Airport from central Lisbon?

    You’ll need to travel 4 miles to reach the Lisbon city centre from Lisbon Humberto Delgado Airport.

  • What is the name of Lisbon’s airport?

    When flying to Lisbon, you'll arrive at Lisbon Humberto Delgado Airport (LIS). The airport is also known as Humberto Delgado, Lisbon, Lisbon Humberto Delgado, Lisbon Portela, or Portela.

  • How much is a flight to Lisbon?

    On average, a flight to Lisbon costs £159. The cheapest price found on KAYAK in the last 2 weeks cost £40 and departed from Dublin Airport.

  • How does KAYAK find such low prices on flights to Lisbon?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Lisbon.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Lisbon?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Lisbon is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Lisbon?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Lisbon with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Lisbon?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Lisbon up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Lisbon

  • Looking for cheap airfare to Lisbon? 25% of our users found round-trip tickets to Lisbon for the following prices or less: Cheap flights to Lisbon from Dublin £123
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Lisbon flight deals.

Reviews of the top 3 airlines flying from Ireland to Lisbon

 
See real verified KAYAK customer reviews for airlines flying to Lisbon. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Ireland to Lisbon. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Lisbon? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.3
Aer LingusOverall score based on 1682 reviews
7.0Entertainment
6.7Food
7.4Boarding
8.1Crew
7.2Comfort
Airline reviews

I was pleasantly surprised. I've never flown this airline and the seats were comfy, I couldn't select my seat but luckily got aisle and was able to comfortably sleep the whole trip except when they came around with an in flight free meal, drinks then snack at the end. I'd fly with Aer Lingus again. The only annoying thing is you had to pay for WiFi for different hours of usage but luckily I didn't need it

10.0 ExcellentAustin, Jul 2026
DUB - JFK
Read more Aer Lingus reviews

I was pleasantly surprised. I've never flown this airline and the seats were comfy, I couldn't select my seat but luckily got aisle and was able to comfortably sleep the whole trip except when they came around with an in flight free meal, drinks then snack at the end. I'd fly with Aer Lingus again. The only annoying thing is you had to pay for WiFi for different hours of usage but luckily I didn't need it

The embarkation at Dublin was a kin to a Ryanair approach, in other words a circuitous and cheep access

Most narrow seat of my life. Easyjet has larger seats. And as I just wrote in the last comment section - Seat 1A promises luxury after a great businessflight. Instead, it's narrow, the seatbelt is 20cm shorter than the one in 1B, it's just a joke.

No snacks, drinks or coffee. No entertainment, not comfortable seats

This was a great flight. I love the way they had general boarding board from the back first by seat row and in general the flight was very comfortable. The seats were actually comfy, and the food served was surprisingly good.

A seat was broken There was a delay of 45min A checked bag was missing in Boston

The service was some of the worst I have experienced on an international flight. The service was rude, the quality of the food was very low. The speed of service was insanely quick. You couldn’t finish your pretzels before the meal came before the coffee came before trash collection came. Then they never came back for 5 hours. They rushed everything so they could get it over with.

Excellent flight and crew. Boarding at Dublin Airport was a very difficult trying to find the right gate.

Delightful flight, ahead of time with a super crew, thanks

I had a great experience. I wasn’t sure what to expect but the crew helped me check my bags and made sure I got in the correct line to board. It was a bit of a walk to my gate so arrive early. I would recommend securing a flight that includes checking in your bag if you remotely think your baggage is over 10kg/22lbs. Be safe and upgrade unless you are carrying a backpack or weekend type baggage.

Everything was good with Tap Air Portugal. It was Logan Airport that was a problem. The fuel system was down and delayed my 10:40 boarding. I wasn't able to board my flight until 2:00 am...after that my flights were great.

Seats had no charging ports. Our plane was rerouted to Boston and we were landed on the tarmac with no food or water for 3 hours (illegal). We then waited in the airport for 3 hours while staff had no information regarding where our bags were or when we were going to get them.

Very poor communications during flight. Our flight was diverted with no communication. We waited for hours in the terminal for word on how we would get to Newark No chargers on the plane Won’t be flying them again

This is a terrible airline. Never again. We got diverted for weather and are sitting on the tarmac now for hours. No updates. No water. No food. This is insane.

Not have my bag forced to be checked when I had a carry on included on my ticket. Staff was very rude to me for asking why they were doing this. I was told there was no more room for carry ons but there was plenty of space in the overhead compartments

There were no delays. I almost lost my connection because of the new EES system

It was a game of hurry up and wait. As advised we arrived at the terminal e hours prior to boarding. We waited about 45 minutes before anyone showed up at the check-in terminal. When someone does arrive she rearranges the line and we think we are going to be checked in. Nope. She leaves and we wait another 15 min. before anyone else shows up. One person got behind her computer and about 15 min later started to check the first person in . Then one more person arrives spends 10-15 behind the desk and then she starts checking in someone. Two more staff arrive and another 10 min or so they are ready to begin checking in people. We have a 11:50 international flight and it is 9:45. And then on of the agents, closes her desk and leaves. And every leg of our flight was delayed; we waited at terminals, we waited to take off, we waited to deplane. After arriving in Porto within 10min of our connection schwduled to take off, we were told to go to the last bus. We waited on the bus (until all the other busses had left) and then we waited another 10 min or so for one of the ground controllers who wanted a ride with us but was busy with a woman who needed the handicap van. He did not help her to the van, but was standing with her and talking with hher. We were rushed through border control and told not to wait for the rest of our party only to get on the plane and then have to wait another 45 min before we were cleared for take off. The waits were not 10 or 20 minutes, they were 35-55 minute waits each time. Miraculously, we made it back only 2 1/2 hours later than we we were originally scheduled. Given the nonchalance and seaming disinterest from many of the staff, I was expecting that we would not get on until much later than that.

The crew was excellent. What I did not enjoy was the food. I have taken many international flights and this was on the low end. Otherwise the trip was fine.

Seats were the most uncomfortable seats i ever experienced on a flight to Europe from Boston. It was a waist of money in buying premium seats for top dollars. I want my money back for what i paid extra for my seats. Awful conditions!

An hour late. Plus literally everything was unavaiable for food and beverage service. Will never fly again. Ever.

On time departure; arrived early into Faro. Air Malta operating flight, crew friendly and efficient.

I didn't know that all connecting flights require online check-in two hours in advance, so I was fined 55 euros. This is a lesson learned.

There isn’t any entertainment. The food and drink was available for a price. I didn’t buy any.

It would be nice to have power to charge phone.

They boarded us but somehow did not manage to record us boarding, so rather than check if we were onboard they removed our bags from the aircraft. I got a call from Ryanair staff in Dublin when I landed in Madiera asking me where I was!!! When I said I was in Madiera I was told what had happened. Our bags were to be sent to Madiera the next day via Manchester, they didn’t arrive. They are now due to arrive two days before we leave. I don’t see myself using Ryanair again unless I am forced to and even then I may just refuse.

The flight arrived within 15 minutes of schedule. We hate the cattle-like boarding process seen often in Europe. After your boarding pass is checked by the airline staff, you wait standing up in an area with no seating for several minutes.

I haven't had a ok flight with Ryanair in so long!

Ryanair is the worst airline in Europe and easily one of the worst in the planet

Em relação a Ryanair, ter de ir ao check-in só para carimbar o cartão de embarque não foi muito fácil, são muito demorados, e atrasam a passagem do controlo de passaporte... E cheguei com 2 horas de antecedência

Usual RyanAir flight but disembarking was poor, no rear steps. The Faro Airport required lots of up step and down steps, no elevator Getting through passport control took 50 minutes in the EU line

Travelling to a place near Lisbon?

Book flights to Lisbon if you plan to visit one of these locations
Fátima
Sintra
Madeira
Setúbal
Nazaré
Ericeira
Almada
Oeiras
Figueira da Foz
Leiria
Tomar
Torres Vedras
Zambujeira do Mar
Comporta
Beja
Colares
Palmela

Everything you need to know for your flight to Lisbon

Information on the airport you'll fly into in Lisbon