Question 1

How long is the flight from Ireland to Belgium?

Accepted Answer

The average flight duration from Ireland to Belgium depends on which airport you fly into and out of. Flying from Dublin to Brussels Bruxelles-National Airport is 1h 45m on average, while flying from Cork to Brussels Bruxelles-National Airport is 1h 50m on average. Brussels Bruxelles-National Airport is the most popular airport in Belgium.

Question 2

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

Accepted Answer

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

Question 3

What is the cheapest Ireland to Belgium flight route?

Accepted Answer

Fly from Dublin to Brussels Bruxelles-National for the best Ireland - Belgium flight prices

Question 4

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

Accepted Answer

You are more likely to see cheaper flights to Belgium from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to Belgium for around €89 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Belgium from Ireland for as low as €74 on momondo.

Question 5

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

Accepted Answer

The number of flights available between Ireland and Belgium is 5 per day as of January 2026. The most frequent departure time is 06:00, with 63% of daily flights leaving at midday.

Question 6

How often are flights from Ireland to Belgium delayed?

Accepted Answer

Historically, on average around 14% of flights between Ireland and Belgium have experienced a delay on any given week. The average delay length over the past 12 months has been 105 minutes.

Question 7

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

Accepted Answer

According to our data, the cheapest time of day to fly to Belgium is in the afternoon. momondo users have found flights departing from Ireland to Belgium in the afternoon for as low as €115. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. At midday is when there is more demand to fly to Belgium, so prices are often more expensive at around €162 per ticket.

Question 8

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

Accepted Answer

There is only 1 cabin class available to choose from on Ireland to Belgium flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Question 9

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

Accepted Answer

According to our data, Aer Lingus have had the fewest delays on this route over the last 12 months, with about 9% of their flights experiencing any sort of delay.

Question 10

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

Accepted Answer

The cheapest day to depart from Ireland to Belgium is on a Thursday when prices can be found for as low as €95. Flights from Ireland to Belgium on a Sunday will generally be more expensive and average around €151. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Question 11

What is the most punctual flight time for Ireland to Belgium 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 12

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

Accepted Answer

Ryanair, Aer Lingus, and Lufthansa are the most popular carriers operating from Ireland to Belgium

Question 13

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

Accepted Answer

As of January 2026, there are 38 flights per week flying from Ireland to Belgium. The most common day of the week flights depart is Mon, with 24% of flights taking off on this day.

Question 14

Can stopping save me money on Ireland to Belgium flights?

Accepted Answer

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

Question 15

What is the cheapest month to fly to Belgium?

Accepted Answer

The month of January is, on average, the cheapest month to fly to Belgium from Ireland, with most prices found around €57. If you don’t want to visit Belgium in January, then you should wait until September to fly from Ireland, when ticket prices are also cheap, with an average price of €66.

Question 16

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

Accepted Answer

Prices for flights from Ireland to Belgium are refreshed on a daily basis.

Question 17

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

Accepted Answer

As of January 2026, there are 2 operators available to choose from for flights from Ireland to Belgium.

Question 18

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

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 Belgium.

Question 19

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

Accepted Answer

The required travel and health documents for your Belgium 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 Belgium. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best price found	€39
Fastest flight time	1h 40m
Direct flights	Every day
Airports in Belgium	32 airports

Airline	Rating	Free Cancellation	Price
Ryanair	PriceFrom €47	Free Cancellation	Rating 6.8 5,242 reviews		Search Ryanair flights
Aer Lingus	PriceFrom €59	Free Cancellation	Rating 7.2 1,425 reviews		Search Aer Lingus flights

Cheap flights from Ireland to Belgium from €15

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How to get the cheapest flight ticket from Ireland to Belgium

What is the cheapest month to fly to Belgium?

The month of January is, on average, the cheapest month to fly to Belgium from Ireland, with most prices found around €57. If you don’t want to visit Belgium in January, then you should wait until September to fly from Ireland, when ticket prices are also cheap, with an average price of €66.

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

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

What is the cheapest Ireland to Belgium flight route?

Fly from Dublin to Brussels Bruxelles-National for the best Ireland - Belgium flight prices

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

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

There is only 1 cabin class available to choose from on Ireland to Belgium 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 Belgium flights?

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

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

Ryanair, Aer Lingus, and Lufthansa are the most popular carriers operating from Ireland to Belgium

How often are flights from Ireland to Belgium delayed?

Historically, on average around 14% of flights between Ireland and Belgium have experienced a delay on any given week. The average delay length over the past 12 months has been 105 minutes.

What is the most punctual flight time for Ireland to Belgium 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?

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

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

According to our data, Aer Lingus have had the fewest delays on this route over the last 12 months, with about 9% of their flights experiencing any sort of delay.

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

The number of flights available between Ireland and Belgium is 5 per day as of January 2026. The most frequent departure time is 06:00, with 63% of daily flights leaving at midday.

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

As of January 2026, there are 38 flights per week flying from Ireland to Belgium. The most common day of the week flights depart is Mon, with 24% of flights taking off on this day.

How long is the flight from Ireland to Belgium?

Cheap Ireland to Belgium flight deals and tips

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

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

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

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

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

Best airlines flying from Ireland to Belgium

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