Question 1

What cabin class options are available on Ireland to Portugal flights?

Accepted Answer

There are 2 cabin classes available to choose from on Ireland to Portugal flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Question 2

What is the cheapest month to fly to Portugal?

Accepted Answer

The month of January is, on average, the cheapest month to fly to Portugal from Ireland, with most prices found around €95. If you’re not able to fly to Portugal in January, then February is your next best option. Flight prices from Ireland to Portugal during February average around €109.

Question 3

How long is the flight from Ireland to Portugal?

Accepted Answer

If you’re flying from a popular airport in Ireland, such as Dublin or Shannon, and flying into Portugal, then you can expect flight times to average 2h 50m and 6h 05m, respectively.

Question 4

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

Accepted Answer

Our most recent data shows that the best time of day to fly to Portugal is in the morning. Flights from Ireland to Portugal during this time can be as low as €502. Flights to Portugal are more costly in the evening, with an average ticket price of €838. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

Question 5

What day of the week experiences the fewest flight delays on this route?

Accepted Answer

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

Question 6

Can stopping save me money on Ireland to Portugal flights?

Accepted Answer

No. A direct flight is the cheapest option for a flight between Ireland to Portugal.

Question 7

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

Accepted Answer

The cheapest day to depart from Ireland to Portugal is on a Sunday when prices can be found for as low as €381. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around €777. These prices are subject to change though, so be sure to set up a Price Alert for flights to Portugal.

Question 8

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

Accepted Answer

The number of flights available between Ireland and Portugal is 50 per week as of December 2025. The most frequent departure day is Sat, with 34% of weekly flights leaving on this day.

Question 9

How often are flights from Ireland to Portugal delayed?

Accepted Answer

Historically, on average around 19% of flights between Ireland and Portugal have experienced a delay on any given week. The average delay length over the past 12 months has been 110 minutes.

Question 10

Which airlines fly to Portugal?

Accepted Answer

Aer Lingus, TAP AIR PORTUGAL and Ryanair are the top three most popular airlines that fly to Portugal from Ireland according to our data. Aer Lingus is the first choice among our users, with 62% of people opting to fly with this airline when travelling to Portugal. Keep in mind that there are 5 different airlines that fly to Portugal on a routine basis, so you have a few additional options to choose from.

Question 11

What is the cheapest airline that flies from Ireland to Portugal?

Accepted Answer

Ryanair and TAP AIR PORTUGAL are the most popular carriers operating from Ireland to Portugal

Question 12

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

Accepted Answer

You are more likely to see cheaper flights to Portugal from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around €159 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from Ireland for as low as €131 on momondo.

Question 13

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

Accepted Answer

As of December 2025, 7 flights take off from Ireland and land in Portugal each day. The most common flight departure time for this route is 16:00, with 41% of daily flights taking off at midday.

Question 14

What is the most punctual flight time for Ireland to Portugal flights?

Accepted Answer

Generally, flights departing at night tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

Question 15

Which airline has the best punctuality record on Ireland to Portugal flights?

Accepted Answer

According to our data, Aer Lingus have had the fewest delays on this route over the last 12 months, with about 11% of their flights experiencing any sort of delay.

Question 16

What is the cheapest Ireland to Portugal flight route?

Accepted Answer

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

Question 17

When did momondo last update prices for flights from Ireland to Portugal?

Accepted Answer

Prices for flights from Ireland to Portugal are updated daily.

Question 18

How many operators does momondo search for flights from Ireland to Portugal?

Accepted Answer

The number of operators available for flights from Ireland to Portugal is 5 as of December 2025.

Question 19

How old do you have to be to fly from Ireland to Portugal?

Accepted Answer

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ireland to Portugal.

Question 20

What documentation or ID do you need to fly to Portugal?

Accepted Answer

The necessary travel and health documents for your Portugal trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best price found	€50
Fastest flight time	2h 15m
Direct flights	Every day
Airports in Portugal	1 airport

Airline	Rating	Free Cancellation	Price
Ryanair	PriceFrom €48	Free Cancellation	Rating 6.8 5,212 reviews	Search Ryanair flights
Aer Lingus	PriceFrom €91	Free Cancellation	Rating 7.2 1,389 reviews	Search Aer Lingus flights
TAP AIR PORTUGAL	PriceFrom €100	Free Cancellation	Rating 7.2 2,083 reviews	Search TAP AIR PORTUGAL flights
KLM	PriceFrom €137	Free Cancellation	Rating 7.7 1,431 reviews	Search KLM flights
British Airways	PriceFrom €497	Free Cancellation	Rating 6.7 7,564 reviews	Search British Airways flights

Cheap flights from Ireland to Portugal from €18

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 Portugal departing on 6/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How to get the cheapest flight ticket from Ireland to Portugal

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What is the cheapest month to fly to Portugal?

The month of January is, on average, the cheapest month to fly to Portugal from Ireland, with most prices found around €95. If you’re not able to fly to Portugal in January, then February is your next best option. Flight prices from Ireland to Portugal during February average around €109.

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

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

What is the cheapest Ireland to Portugal flight route?

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

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

What cabin class options are available on Ireland to Portugal flights?

There are 2 cabin classes available to choose from on Ireland to Portugal flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Ireland to Portugal flights?

No. A direct flight is the cheapest option for a flight between Ireland to Portugal.

What is the cheapest airline that flies from Ireland to Portugal?

Ryanair and TAP AIR PORTUGAL are the most popular carriers operating from Ireland to Portugal

Which airlines fly to Portugal?

How often are flights from Ireland to Portugal delayed?

Historically, on average around 19% of flights between Ireland and Portugal have experienced a delay on any given week. The average delay length over the past 12 months has been 110 minutes.

What is the most punctual flight time for Ireland to Portugal flights?

Generally, flights departing at night tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Ireland to Portugal flights?

According to our data, Aer Lingus have had the fewest delays on this route over the last 12 months, with about 11% of their flights experiencing any sort of delay.

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

As of December 2025, 7 flights take off from Ireland and land in Portugal each day. The most common flight departure time for this route is 16:00, with 41% of daily flights taking off at midday.

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

The number of flights available between Ireland and Portugal is 50 per week as of December 2025. The most frequent departure day is Sat, with 34% of weekly flights leaving on this day.

How long is the flight from Ireland to Portugal?

If you’re flying from a popular airport in Ireland, such as Dublin or Shannon, and flying into Portugal, then you can expect flight times to average 2h 50m and 6h 05m, respectively.

Cheap Ireland to Portugal flight deals and tips

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

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When did momondo last update prices for flights from Ireland to Portugal?

How many operators does momondo search for flights from Ireland to Portugal?

How old do you have to be to fly from Ireland to Portugal?

What documentation or ID do you need to fly to Portugal?

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

Best airlines flying from Ireland to Portugal

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

Why use momondo?

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

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

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

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

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