Question 1

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

Accepted Answer

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

Question 2

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

Accepted Answer

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

Question 3

How long does it take to fly to Lisbon?

Accepted Answer

On average, it takes 2h 45m to fly from Ireland to Lisbon if you fly out of Dublin (the most popular airport in Ireland) and into Lisbon (the most popular airport in Lisbon). If you’re flying out of Cork and into Lisbon, then the flight time is around 6h 40m.

Question 4

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

Accepted Answer

The cheapest day to depart from Ireland to Lisbon is on a Sunday. Travellers who choose to depart for Lisbon on a Sunday will often find tickets for as low as €326. Be sure to avoid booking your departure on a Tuesday as prices are generally higher than usual. According to our data, the average ticket price to Lisbon on Tuesday is €702.

Question 5

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

Accepted Answer

As of July 2025, there are 7 flights per day flying from Ireland to Lisbon. The most common time of day flights depart is 18:00, with 42% of flights taking off in the evening.

Question 6

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

Accepted Answer

According to our data, the cheapest time of day to fly to Lisbon is in the morning. momondo users have found flights departing from Ireland to Lisbon in the morning for as low as €404. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are €748 on average. Flights to Lisbon from Ireland in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

Question 7

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

Accepted Answer

The number of flights available between Ireland and Lisbon is 50 per week as of July 2025. The most frequent departure day is Fri, with 22% of weekly flights leaving on this day.

Question 8

What is the cheapest month to fly to Lisbon?

Accepted Answer

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 €89. If you don’t want to visit Lisbon in January, then you should wait until February to fly from Ireland, when ticket prices are also cheap, with an average price of €110.

Question 9

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

Accepted Answer

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 €164 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 €119 on momondo.

Question 10

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

Accepted Answer

There are 2 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.

Question 11

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

Accepted Answer

Prices for flights from Ireland to Lisbon Humberto Delgado Airport were last updated today.

Question 12

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

Accepted Answer

The number of operators available for flights from Ireland to Lisbon Humberto Delgado Airport is 2 as of July 2025.

Question 13

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

Accepted Answer

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ireland to Lisbon Humberto Delgado Airport.

Question 14

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

Accepted Answer

The required travel and health documents for your Lisbon Humberto Delgado Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Lisbon Humberto Delgado Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best price found	€31
Fastest flight time	2h 45m
Direct flights	Every day
Airports in Lisbon	1 airport

Airline	Rating	Free Cancellation	Price
Aer Lingus	PriceFrom €90	Free Cancellation	Rating 7.1 1,154 reviews		Search Aer Lingus flights
TAP AIR PORTUGAL	PriceFrom €102	Free Cancellation	Rating 7.1 1,917 reviews		Search TAP AIR PORTUGAL flights

Cheap flights from Ireland to Lisbon from €31

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 26/8. 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 Lisbon

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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 2 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

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

As of July 2025, there are 7 flights per day flying from Ireland to Lisbon. The most common time of day flights depart is 18:00, with 42% of flights taking off in the evening.

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

The number of flights available between Ireland and Lisbon is 50 per week as of July 2025. The most frequent departure day is Fri, with 22% of weekly flights leaving on this day.

How long does it take to fly to Lisbon?

On average, it takes 2h 45m to fly from Ireland to Lisbon if you fly out of Dublin (the most popular airport in Ireland) and into Lisbon (the most popular airport in Lisbon). If you’re flying out of Cork and into Lisbon, then the flight time is around 6h 40m.

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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?

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