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.

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

602 flights are operational weekly from London Heathrow Airport to Ireland as of January 2026. The most popular departure day for this route is Mon, with 17% of flights per week taking off on this day.

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 January 2026, 86 flights take off from London Heathrow Airport and land in Ireland each day. The most common flight departure time for this route is 14:00, with 41% of daily flights taking off at midday.

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.

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

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

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.

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 January 2026, 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.

€25 Cheap Flights from London Heathrow Airport to Ireland in 2026

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Find the cheapest flights from London Heathrow Airport to Ireland

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One-way

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Enter your travel dates to find the best prices.

06:20 - 07:45

LHR

DUB

1h 25mdirect

18:45 - 20:00

DUB

LHR

1h 15mdirect

€75British Airways

Thu, 7 May - Sat, 9 May

12:50 - 14:20

LHR

DUB

1h 30mdirect

08:50 - 10:25

DUB

LHR

1h 35mdirect

€77British Airways

Mon, 2 Mar - Wed, 4 Mar

18:15 - 19:40

LHR

DUB

1h 25mdirect

18:00 - 19:20

DUB

LHR

1h 20mdirect

€78British Airways

Tue, 24 Feb - Tue, 3 Mar

06:30 - 07:55

LHR

DUB

1h 25mdirect

20:40 - 22:00

DUB

LHR

1h 20mdirect

€79British Airways

Mon, 23 Feb - Mon, 2 Mar

15:30 - 17:00

LHR

DUB

1h 30mdirect

10:20 - 11:55

DUB

LHR

1h 35mdirect

€80British Airways

Wed, 25 Feb - Wed, 4 Mar

06:30 - 07:55

LHR

DUB

1h 25mdirect

20:40 - 22:00

DUB

LHR

1h 20mdirect

€81British Airways

Mon, 23 Feb - Mon, 2 Mar

10:55 - 12:25

LHR

NOC

1h 30mdirect

13:00 - 14:30

NOC

LHR

1h 30mdirect

€95Aer Lingus

Thu, 22 Jan - Mon, 26 Jan

10:00 - 11:30

LHR

SNN

1h 30mdirect

17:30 - 18:55

SNN

LHR

1h 25mdirect

€103Aer Lingus

Sun, 1 Feb - Fri, 27 Feb

10:55 - 12:25

LHR

NOC

1h 30mdirect

13:00 - 14:30

NOC

LHR

1h 30mdirect

€107Aer Lingus

Wed, 4 Feb - Wed, 25 Feb

07:50 - 17:05

LHR

KIR

9h 15m1 stop

10:25 - 16:50

KIR

LHR

6h 25m1 stop

€174Multiple Airlines

Thu, 22 Jan - Fri, 23 Jan

British Airways flights from London Heathrow Airport to Ireland

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

British Airways

7 May

LHR06:20London Heathrow

1h 25m

DUB07:45Dublin

9 May

DUB18:45Dublin

1h 15m

LHR20:00London Heathrow

€75

British Airways

2 Mar

LHR12:50London Heathrow

1h 30m

DUB14:20Dublin

4 Mar

DUB08:50Dublin

1h 35m

LHR10:25London Heathrow

€77

British Airways

24 Feb

LHR18:15London Heathrow

1h 25m

DUB19:40Dublin

3 Mar

DUB18:00Dublin

1h 20m

LHR19:20London Heathrow

€78

Aer Lingus flights from London Heathrow Airport to Ireland

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

Aer Lingus

16 Jan

LHR10:55London Heathrow

1h 30m

NOC12:25Knock Intl

18 Jan

NOC13:00Knock Intl

1h 30m

LHR14:30London Heathrow

€95

Aer Lingus

22 Jan

LHR10:55London Heathrow

1h 30m

NOC12:25Knock Intl

26 Jan

NOC13:00Knock Intl

1h 30m

LHR14:30London Heathrow

€95

Aer Lingus

1 Feb

LHR10:00London Heathrow

1h 30m

SNN11:30Shannon

27 Feb

SNN17:30Shannon

1h 25m

LHR18:55London Heathrow

€103

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

Thu 7/5

06:20-07:45

Nonstop1h 25m

Dublin

Sat 9/5

18:45-20:00

Nonstop1h 15m

€75

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Mon 2/3

12:50-14:20

Nonstop1h 30m

Dublin

Wed 4/3

08:50-10:25

Nonstop1h 35m

€77

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Tue 24/2

18:15-19:40

Nonstop1h 25m

Dublin

Tue 3/3

18:00-19:20

Nonstop1h 20m

€78

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Mon 23/2

06:30-07:55

Nonstop1h 25m

Dublin

Mon 2/3

20:40-22:00

Nonstop1h 20m

€79

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Wed 25/2

15:30-17:00

Nonstop1h 30m

Dublin

Wed 4/3

10:20-11:55

Nonstop1h 35m

€80

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Mon 23/2

06:30-07:55

Nonstop1h 25m

Dublin

Mon 2/3

20:40-22:00

Nonstop1h 20m

€81

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Thu 22/1

10:55-12:25

Nonstop1h 30m

Knock Intl

Mon 26/1

13:00-14:30

Nonstop1h 30m

€95

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Sun 1/2

10:00-11:30

Nonstop1h 30m

Shannon

Fri 27/2

17:30-18:55

Nonstop1h 25m

€103

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Wed 4/2

10:55-12:25

Nonstop1h 30m

Knock Intl

Wed 25/2

13:00-14:30

Nonstop1h 30m

€107

LondonMilltown (Kerry)

LHR - KIR

LHRKIR

London Heathrow

Thu 22/1

07:50-17:05

1 stop9h 15m

Milltown (Kerry)

Fri 23/1

10:25-16:50

1 stop6h 25m

€174

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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 February is another great option to travel to Ireland, with average flight prices from London Heathrow Airport averaging around €129.

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 €131. 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 €239. 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 €137. 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 in the morning when prices are around €166.

What is the cheapest London Heathrow to Ireland flight route?

Fly from London Heathrow to Dublin 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 €110 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

Fastest flight time	1h 20m
Direct flights	Every day
Airports in Ireland	77 airports

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 January 2026, 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 13.04% of the total bookings. Other popular models include Boeing 777 with 9.88%, Airbus A350-1000 with 9.46%, and Airbus A320neo with 8.40%.

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 €95	Free Cancellation	Rating 6.7 7,664 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 €40

Flights to Corkfrom €88

Flights to Shannon, Clarefrom €90

Flights to Donegalfrom €74

Flights to Milltown (Kerry)from €39

Cheap flights from London Heathrow Airport to Ireland from €50

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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 February is another great option to travel to Ireland, with average flight prices from London Heathrow Airport averaging around €129.

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 Dublin 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, Aer Lingus, and Loganair 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 January 2026, 86 flights take off from London Heathrow Airport and land in Ireland each day. The most common flight departure time for this route is 14:00, with 41% of daily flights taking off at midday.

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

602 flights are operational weekly from London Heathrow Airport to Ireland as of January 2026. The most popular departure day for this route is Mon, with 17% 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

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