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

According to our data, Aer Lingus have had the fewest delays on this route over the last 12 months, with about 14% of their flights experiencing any sort of delay.

How many flights depart from London Heathrow Airport to Ireland on average per day?

As of December 2025, 75 flights take off from London Heathrow Airport and land in Ireland each day. The most common flight departure time for this route is 10:00, with 42% of daily flights taking off at midday.

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

Generally, flights departing at night tend to experience fewer delays. Flights departing in the early afternoon 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. Sunday has historically seen more delays on average compared to the rest of the week.

How many flights depart from London Heathrow Airport to Ireland on average per week?

528 flights are operational weekly from London Heathrow Airport to Ireland as of December 2025. The most popular departure day for this route is Thu, with 18% of flights per week taking off on this day.

How often are flights from London to Ireland delayed?

Historically, on average around 14% of flights between London and Ireland have experienced a delay on any given week. The average delay length over the past 12 months has been 104 minutes.

What is the cheapest airline that flies from London Heathrow to Ireland?

British Airways and Aer Lingus are the most popular carriers operating from London Heathrow to Ireland

When did momondo last update prices for flights from London Heathrow Airport to Ireland?

Prices for flights from London Heathrow Airport to Ireland are refreshed on a daily basis.

How many operators does momondo search for flights from London Heathrow Airport to Ireland?

As of December 2025, there is 1 operator available to choose from for flights from London Heathrow Airport to Ireland.

How old do you have to be to fly from London Heathrow Airport to Ireland?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Ireland.

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

The necessary travel and health documents for your Ireland 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.

€46 Cheap Flights from London Heathrow Airport to Ireland in 2025/26

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Find the cheapest flights from London Heathrow Airport to Ireland

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One-way

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Cheap return flights

Enter your travel dates to find the best prices.

15:30 - 17:00

LHR

DUB

1h 30mdirect

20:40 - 22:00

DUB

LHR

1h 20mdirect

€69British Airways

jeu., 22 janv. - dim., 25 janv.

13:35 - 15:05

LHR

DUB

1h 30mdirect

13:10 - 14:35

DUB

LHR

1h 25mdirect

€74British Airways

sam., 10 janv. - sam., 17 janv.

18:25 - 19:50

LHR

DUB

1h 25mdirect

20:40 - 22:00

DUB

LHR

1h 20mdirect

€78British Airways

sam., 24 janv. - sam., 31 janv.

06:30 - 07:55

LHR

DUB

1h 25mdirect

08:50 - 10:25

DUB

LHR

1h 35mdirect

€79British Airways

ven., 9 janv. - mar., 13 janv.

06:30 - 07:55

LHR

DUB

1h 25mdirect

08:50 - 10:25

DUB

LHR

1h 35mdirect

€80British Airways

ven., 9 janv. - mar., 13 janv.

15:30 - 17:00

LHR

DUB

1h 30mdirect

10:55 - 12:30

DUB

LHR

1h 35mdirect

€81British Airways

sam., 10 janv. - sam., 24 janv.

15:15 - 16:45

LHR

SNN

1h 30mdirect

20:05 - 21:25

SNN

LHR

1h 20mdirect

€96Aer Lingus

mer., 7 janv. - mer., 21 janv.

22:05 - 23:25

LHR

ORK

1h 20mdirect

16:05 - 17:20

ORK

LHR

1h 15mdirect

€102Aer Lingus

mar., 6 janv. - mar., 13 janv.

22:05 - 23:25

LHR

ORK

1h 20mdirect

17:35 - 18:50

ORK

LHR

1h 15mdirect

€104Aer Lingus

mer., 21 janv. - mer., 28 janv.

06:30 - 20:00

LHR

CFN

13h 30m1 stop

14:30 - 22:00

CFN

LHR

7h 30m1 stop

€194Multiple Airlines

sam., 24 janv. - sam., 31 janv.

British Airways flights from London Heathrow Airport to Ireland

Our best British Airways deals on London Heathrow Airport to Ireland flight tickets

British Airways

22 Jan

LHR15:30London Heathrow

1h 30m

DUB17:00Dublin

25 Jan

DUB20:40Dublin

1h 20m

LHR22:00London Heathrow

€69

Find similar

British Airways

10 Jan

LHR13:35London Heathrow

1h 30m

DUB15:05Dublin

17 Jan

DUB13:10Dublin

1h 25m

LHR14:35London Heathrow

€74

Find similar

British Airways

24 Jan

LHR18:25London Heathrow

1h 25m

DUB19:50Dublin

31 Jan

DUB20:40Dublin

1h 20m

LHR22:00London Heathrow

€78

Find similar

Aer Lingus flights from London Heathrow Airport to Ireland

Our best Aer Lingus deals on London Heathrow Airport to Ireland flight tickets

Aer Lingus

7 Jan

LHR15:15London Heathrow

1h 30m

SNN16:45Shannon

21 Jan

SNN20:05Shannon

1h 20m

LHR21:25London Heathrow

€96

Find similar

Aer Lingus

6 Jan

LHR22:05London Heathrow

1h 20m

ORK23:25Cork

13 Jan

ORK16:05Cork

1h 15m

LHR17:20London Heathrow

€102

Find similar

Aer Lingus

21 Jan

LHR22:05London Heathrow

1h 20m

ORK23:25Cork

28 Jan

ORK17:35Cork

1h 15m

LHR18:50London Heathrow

€104

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momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

jeu. 22/1

15:30-17:00

Nonstop1h 30m

Dublin

dim. 25/1

20:40-22:00

Nonstop1h 20m

€69

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

sam. 10/1

13:35-15:05

Nonstop1h 30m

Dublin

sam. 17/1

13:10-14:35

Nonstop1h 25m

€74

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

sam. 24/1

18:25-19:50

Nonstop1h 25m

Dublin

sam. 31/1

20:40-22:00

Nonstop1h 20m

€78

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

ven. 9/1

06:30-07:55

Nonstop1h 25m

Dublin

mar. 13/1

08:50-10:25

Nonstop1h 35m

€79

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

ven. 9/1

06:30-07:55

Nonstop1h 25m

Dublin

mar. 13/1

08:50-10:25

Nonstop1h 35m

€80

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

sam. 10/1

15:30-17:00

Nonstop1h 30m

Dublin

sam. 24/1

10:55-12:30

Nonstop1h 35m

€81

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

mer. 7/1

15:15-16:45

Nonstop1h 30m

Shannon

mer. 21/1

20:05-21:25

Nonstop1h 20m

€96

LondonCork

LHR - ORK

LHRORK

London Heathrow

mar. 6/1

22:05-23:25

Nonstop1h 20m

Cork

mar. 13/1

16:05-17:20

Nonstop1h 15m

€102

LondonCork

LHR - ORK

LHRORK

London Heathrow

mer. 21/1

22:05-23:25

Nonstop1h 20m

Cork

mer. 28/1

17:35-18:50

Nonstop1h 15m

€104

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

sam. 24/1

06:30-20:00

1 stop13h 30m

Donegal

sam. 31/1

14:30-22:00

1 stop7h 30m

€194

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London Heathrow Airport to Ireland

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

Prices

Airlines

Delays

Other information

What is the cheapest month to fly to Ireland?

The month of October is another great option to travel to Ireland, with average flight prices from London Heathrow Airport averaging around €127.

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

The cheapest day to depart on your flight to Ireland is on a Tuesday when prices can be found for as low as €130. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around €260. These prices are subject to change though, so be sure to set up a Price Alert for flights to Ireland.

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

In the afternoon is the cheapest time of day to fly from London Heathrow Airport to Ireland when you can find flight prices for as low as €154. Flying to Ireland in the afternoon is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Ireland is at midday when prices are around €286.

What is the cheapest London Heathrow to Ireland flight route?

Fly from London Heathrow to Shannon for the best London Heathrow - Ireland flight prices

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

You are more likely to see cheaper flights to Ireland from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €146 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from London Heathrow Airport for as low as €108 on momondo.

What cabin class options are available on London Heathrow to Ireland flights?

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

Cheap London Heathrow Airport to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Ireland

Best price found	€86
Fastest flight time	1h 20m
Direct flights	Every day
Airports in Ireland	77 airports

The best one-way flight to Ireland from London Heathrow Airport in the past 72 hours is €86. The best return flight deal from London Heathrow Airport to Ireland found on momondo in the last 72 hours is €82.

The fastest flight from London Heathrow Airport to Ireland takes 1h 20m

Direct flights go from London Heathrow Airport to Ireland every day.

There are 77 airports in Ireland. From London Heathrow Airport there are direct flights to Dublin (DUB), Shannon (SNN), Cork (ORK).

Search flight deals

When did momondo last update prices for flights from London Heathrow Airport to Ireland?
Prices for flights from London Heathrow Airport to Ireland are refreshed on a daily basis.
How many operators does momondo search for flights from London Heathrow Airport to Ireland?
As of December 2025, there is 1 operator available to choose from for flights from London Heathrow Airport to Ireland.
How old do you have to be to fly from London Heathrow Airport to Ireland?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Ireland.
What documentation or ID do you need to fly to Ireland?
The necessary travel and health documents for your Ireland 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.
What is the most popular plane model from London Heathrow Airport to Ireland?
Based on momondo bookings for flights between London Heathrow Airport and Ireland, the leading plane model is Boeing 787-9 Dreamliner, making up 14.07% of the total bookings. Other popular models include Boeing 777 with 10.56%, Airbus A350-1000 with 9.52%, and Airbus A320neo with 8.37%.

Best airlines flying from London Heathrow Airport to Ireland

Compare and see reviews for airlines that fly from London Heathrow Airport to Ireland with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom €94	Free Cancellation	Rating 6.7 7,571 reviews		Search British Airways flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Ireland for you.

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

Yes. All flights to Ireland from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Ireland.

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

Price alerts on flights to Ireland from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Ireland trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

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Find better results for your trip to Ireland

Popular Cities in Ireland

Flights to Dublinfrom €41

Flights to Corkfrom €93

Flights to Shannon, Clarefrom €95

Flights to Donegalfrom €75

Flights to Milltown (Kerry)from €38

Cheap flights from London Heathrow Airport to Ireland from €46

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Find the cheapest flights from London Heathrow Airport to Ireland

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British Airways flights from London Heathrow Airport to Ireland

Our best British Airways deals on London Heathrow Airport to Ireland flight tickets

Aer Lingus flights from London Heathrow Airport to Ireland

Our best Aer Lingus deals on London Heathrow Airport to Ireland flight tickets

momondo Fare Finder

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

See travel insights to Ireland from

How to get the cheapest flight ticket from London Heathrow Airport to Ireland

What is the cheapest month to fly to Ireland?

The month of October is another great option to travel to Ireland, with average flight prices from London Heathrow Airport averaging around €127.

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

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

What is the cheapest London Heathrow to Ireland flight route?

Fly from London Heathrow to Shannon for the best London Heathrow - Ireland flight prices

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

What cabin class options are available on London Heathrow to Ireland flights?

There are 2 cabin classes available to choose from on London Heathrow to Ireland 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 London Heathrow to Ireland?

British Airways and Aer Lingus are the most popular carriers operating from London Heathrow to Ireland

How often are flights from London to Ireland delayed?

Historically, on average around 14% of flights between London and Ireland have experienced a delay on any given week. The average delay length over the past 12 months has been 104 minutes.

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

Generally, flights departing at night tend to experience fewer delays. Flights departing in the early afternoon 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. Sunday has historically seen more delays on average compared to the rest of the week.

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

According to our data, Aer Lingus have had the fewest delays on this route over the last 12 months, with about 14% of their flights experiencing any sort of delay.

How many flights depart from London Heathrow Airport to Ireland on average per day?

As of December 2025, 75 flights take off from London Heathrow Airport and land in Ireland each day. The most common flight departure time for this route is 10:00, with 42% of daily flights taking off at midday.

How many flights depart from London Heathrow Airport to Ireland on average per week?

528 flights are operational weekly from London Heathrow Airport to Ireland as of December 2025. The most popular departure day for this route is Thu, with 18% of flights per week taking off on this day.

Cheap London Heathrow Airport to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Ireland

Best price found

Fastest flight time

Direct flights

Airports in Ireland

When did momondo last update prices for flights from London Heathrow Airport to Ireland?

How many operators does momondo search for flights from London Heathrow Airport to Ireland?

How old do you have to be to fly from London Heathrow Airport to Ireland?

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

What is the most popular plane model from London Heathrow Airport to Ireland?

Best airlines flying from London Heathrow Airport to Ireland

Compare and see reviews for airlines that fly from London Heathrow Airport to Ireland with momondo

Why use momondo?

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

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

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

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

An easier way to manage your Ireland trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Ireland

Popular Cities in Ireland

Popular flights according to clicks in the last 7 days on momondo