Question 1

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

Accepted Answer

You are more likely to see cheaper flights to Dublin from Portugal when booking weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around €119 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dublin from Portugal for as low as €98 on momondo.

Question 2

What is the cheapest month to fly to Dublin?

Accepted Answer

If you aren’t able to travel during the month of January, then book flights to Dublin from Portugal during February instead. Flights to Dublin in February, while not as cheap as those in January, still average around €79.

Question 3

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

Accepted Answer

Our data shows that the cheapest Portugal to Dublin flights are usually those with departure times in the morning. Our users have found flights to Dublin in the morning for as low as €117. If you have a flexible travel schedule, then try to avoid flying at midday when prices are €162 on average. Flights to Dublin from Portugal at midday are generally more expensive because this time of day is more convenient for travellers’ schedules.

Question 4

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

Accepted Answer

Ryanair, Vueling, and Aer Lingus are the most popular carriers operating from Portugal to Dublin

Question 5

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

Accepted Answer

The number of flights available between Portugal and Dublin is 12 per day as of July 2025. The most frequent departure time is 22:00, with 40% of daily flights leaving in the evening.

Question 6

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

Accepted Answer

There are 1 cabin classes available to choose from on Portugal to Dublin flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Question 7

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

Accepted Answer

Our data shows that Thursday is the least expensive day to fly to Dublin. Tickets to fly out on this day can be as low as €102. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around €171. These prices are subject to change though, so be sure to set up a Price Alert for flights to Dublin.

Question 8

How long does it take to fly to Dublin?

Accepted Answer

On average, it takes 2h 20m to fly from Portugal to Dublin if you fly out of Porto (the most popular airport in Portugal) and into Dublin (the most popular airport in Dublin). If you’re flying out of Lisbon and into Dublin, then the flight time is around 2h 39m.

Question 9

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

Accepted Answer

The number of flights available between Portugal and Dublin is 87 per week as of July 2025. The most frequent departure day is Fri, with 24% of weekly flights leaving on this day.

Question 10

Can stopping save me money on Portugal to Dublin flights?

Accepted Answer

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

Question 11

What is the cheapest Portugal to Dublin flight route?

Accepted Answer

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

Question 12

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

Accepted Answer

Prices for flights from Portugal to Dublin Airport are updated daily.

Question 13

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

Accepted Answer

As of July 2025, there are 2 operators available to choose from for flights from Portugal to Dublin Airport.

Question 14

How old do you have to be to fly from Portugal to Dublin 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 Portugal to Dublin Airport.

Question 15

What documentation or ID do you need to fly to Dublin Airport?

Accepted Answer

The travel and health documents you'll need for your trip to Dublin 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 licence and a passport that is valid for six months after your intended arrival at Dublin Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best price found	€32
Fastest flight time	2h 20m
Direct flights	Every day
Airports in Dublin	1 airport

Airline	Rating	Free Cancellation	Price
Aer Lingus	PriceFrom €73	Free Cancellation	Rating 7.1 1,160 reviews		Search Aer Lingus flights
TAP AIR PORTUGAL	PriceFrom €102	Free Cancellation	Rating 7.1 1,918 reviews		Search TAP AIR PORTUGAL flights

Cheap flights from Portugal to Dublin from €32

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portugal to Dublin departing on 12/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How to get the cheapest flight ticket from Portugal to Dublin

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 Dublin?

If you aren’t able to travel during the month of January, then book flights to Dublin from Portugal during February instead. Flights to Dublin in February, while not as cheap as those in January, still average around €79.

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

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

What is the cheapest Portugal to Dublin flight route?

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

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

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

There are 1 cabin classes available to choose from on Portugal to Dublin 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 Portugal to Dublin flights?

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

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

Ryanair, Vueling, and Aer Lingus are the most popular carriers operating from Portugal to Dublin

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

The number of flights available between Portugal and Dublin is 12 per day as of July 2025. The most frequent departure time is 22:00, with 40% of daily flights leaving in the evening.

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

The number of flights available between Portugal and Dublin is 87 per week as of July 2025. The most frequent departure day is Fri, with 24% of weekly flights leaving on this day.

How long does it take to fly to Dublin?

On average, it takes 2h 20m to fly from Portugal to Dublin if you fly out of Porto (the most popular airport in Portugal) and into Dublin (the most popular airport in Dublin). If you’re flying out of Lisbon and into Dublin, then the flight time is around 2h 39m.

Cheap Portugal to Dublin flight deals and tips

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

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

How old do you have to be to fly from Portugal to Dublin Airport?

What documentation or ID do you need to fly to Dublin Airport?

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

Best airlines flying from Portugal to Dublin

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