Question 1

How popular is this Ireland to Lisbon flight route?

Accepted Answer

Within the past month, 533 users have taken a look at flights from Ireland to Lisbon Humberto Delgado.

Question 2

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

Accepted Answer

One-way options have recently been found by users for as low as £64 on Ryanair. Other airlines that offer cheap prices include KLM from £72 and Vueling from £74 one-way.

Question 3

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

Accepted Answer

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.

Question 4

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

Accepted Answer

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. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 5

Weekly flight availability from Ireland to Lisbon

Accepted Answer

The most flights from IE0 to LIS are scheduled on a Thursday (9 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).

Question 6

E

Accepted Answer

In terms of precipitation, rainfall in Lisbon ranges from 6.0 - 122.0 inches per month. December is typically the wettest month, when rainfall can reach 122.0 mm. July is typically the driest time to visit Lisbon when rainfall is around 6.0 mm.

Question 7

E

Accepted Answer

If weather is an important factor for your trip to Lisbon, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

Question 8

What are the cheapest flights from Ireland to Lisbon?

Accepted Answer

The cheapest flight price from Ireland to Lisbon is £38. On average you can expect to pay £808. The most popular route, (Dublin - Lisbon Humberto Delgado), can usually be booked for £255.

Question 9

What are the most reliable airlines from Ireland to Lisbon?

Accepted Answer

No one likes to see their flight delayed. When booking a flight from Ireland to Lisbon consider choosing American Airlines (80%), Aer Lingus (80%) or Ryanair (68%) as they are the most reliable in getting you off to your destination on time.

Question 10

What are the most popular airlines that fly from Ireland to Lisbon?

Accepted Answer

When booking a flight from Ireland to Lisbon, you may want to consider flying on Aer Lingus, Ryanair or KLM as they are the most popular for this route.

Question 11

What is the cheapest day to fly round-trip from Ireland to Lisbon?

Accepted Answer

Leaving on a Thursday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 62% on the overall cost on flights from Ireland to Lisbon.

Question 12

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

Accepted Answer

Users have found that booking a flight from Ireland to Lisbon at least 40 days early can save you up to 19% on average compared to booking a flight this week. If booking 40 days before your flight isn’t an option for you, users have found flights from Ireland to Lisbon for as little as £86 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as £86 for flights departing within the next 3 days.

Question 13

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

Accepted Answer

January can be a great time to fly to Lisbon from Ireland with a flight ticket averaging about £141. Cheapflights users have found deals in the month of January for as cheap as £21. The most expensive prices can be found in the month of June.

Question 14

What is the cheapest time of day to fly from IE to LIS?

Accepted Answer

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 51% on airfare.

Question 15

What airport do you fly into for flights to Lisbon from Ireland?

Accepted Answer

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.

Question 16

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

Accepted Answer

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

Question 17

How can I find direct flights from Ireland to Lisbon?

Accepted Answer

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

Question 18

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

Accepted Answer

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.

Question 19

How does Cheapflights help users find flights from Ireland to Lisbon?

Accepted Answer

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!

Question 20

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

Accepted Answer

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!

Question 21

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

Accepted Answer

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

Question 22

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

Accepted Answer

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.

Round-trip from	£112
One-way from	£64
Popular in	June
Cheapest in	January
Average price	£180
Good round-trip deal	£157 or less
Good one-way deal	£75 or less

Airline	Cheapest	Average	Flexibility	On-time
Ryanair	Cheapest£62	Average£139	FlexibilityNo cancel fee	On-timeN/A	Search Ryanair flights
Aer Lingus	Cheapest£68	Average£170	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
TAP AIR PORTUGAL	Cheapest£81	Average£176	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
KLM	Cheapest£127	Average£187	FlexibilityNo cancel fee	On-time75%	Search KLM flights

Cheap flights from Ireland to Lisbon from £64

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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.

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 4 July 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Ireland to Lisbon

Cheapest flights from Ireland to LisbonExplore 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 4 July 2025.

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 4 July 2025.

Cheapflights Fare Finder

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

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.

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?

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 4 July 2025.

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 29 June 2025.

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 4 July 2025.

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 4 July 2025.

Check out reviews from past customers who have flown with KLM, SWISS, andTransavia France 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.

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?

How popular is this Ireland to Lisbon flight route?

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

What are the most reliable airlines from Ireland to Lisbon?

What are the cheapest flights from Ireland to Lisbon?

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

How can I find direct flights from Ireland to Lisbon?

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

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

Travelling to a place near Ireland?

Browse thousands of different options on Cheapflights for your next trip

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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.

Top 4 airlines flying from Ireland to Lisbon

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?

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

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

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

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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 4 July 2025.