How long is the flight from London Heathrow Airport to Ireland?

Departing from London Heathrow Airport to Ireland will take you 1h 30m. There are 279 mi between London Heathrow Airport and Ireland. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

In terms of precipitation, rainfall in Ireland ranges from 49.0 - 79.0 inches per month. October is typically the wettest month, when rainfall can reach 79.0 mm. February is typically the driest time to visit Ireland when rainfall is around 49.0 mm.

If weather is an important factor for your trip to Ireland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

What are the most popular routes from London Heathrow Airport to Ireland?

The most popular flight routes from London Heathrow Airport to Ireland are London Heathrow - Dublin, London Heathrow - Cork and London Heathrow - Shannon.

What are the cheapest flights from London Heathrow Airport to Ireland?

Looking for the cheapest flight from London Heathrow Airport to Ireland? While on average our users pay £457, our data indicates the cheapest price to be £62. The most popular route (London Heathrow - Dublin), is priced around £70.

What are the most reliable airlines from London Heathrow Airport to Ireland?

No one likes to see their flight delayed. When booking a flight from London Heathrow Airport to Ireland consider choosing Air Canada (89%), Aer Lingus (81%) or Qatar Airways (80%) as they are the most reliable in getting you off to your destination on time.

What are the most popular airlines that fly from London Heathrow Airport to Ireland?

Before booking your flight from London Heathrow Airport to Ireland check out the most popular airlines for this route: Aer Lingus, British Airways or Ryanair.

Can I find deals for flights from Heathrow to Ireland that include hotel bookings?

Yes. In addition to deals on Heathrow to Ireland flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Heathrow to Ireland?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Ireland.

Can I find deals for business class flights from Heathrow to Ireland?

Yes. Cheapflights offers flight deals from Heathrow to Ireland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£38+ Cheap Flights from London Heathrow Airport to Ireland

Cheap flight deals from Heathrow to Ireland

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Heathrow to Ireland
Explore the most affordable flight options available from Heathrow to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 October 2026.

Sat 21/1106:30 -

Nonstop1h 20m

Sat 21/1115:10 -

Nonstop1h 25m

Deal found 28/9£65

Thu 29/1007:50 -

Nonstop1h 20m

Sat 21/1116:30 -

Nonstop1h 20m

Deal found 27/9£72

Sat 7/1106:30 -

Nonstop1h 20m

Mon 9/1120:40 -

Nonstop1h 20m

Deal found 29/9£74

Sat 7/1106:30 -

Nonstop1h 20m

Tue 10/1120:40 -

Nonstop1h 20m

Deal found 27/9£75

Sat 28/1116:20 -

Nonstop1h 25m

Thu 3/1220:40 -

Nonstop1h 20m

Deal found 30/9£77

Sat 7/1116:20 -

Nonstop1h 25m

Sat 14/1120:40 -

Nonstop1h 20m

Deal found 28/9£78

Sat 14/1116:20 -

Nonstop1h 25m

Mon 16/1120:40 -

Nonstop1h 20m

Deal found 30/9£79

Wed 11/1114:15 -

Nonstop1h 25m

Mon 16/1120:40 -

Nonstop1h 20m

Deal found 29/9£82

Sat 7/1116:20 -

Nonstop1h 25m

Mon 9/1120:40 -

Nonstop1h 20m

Deal found 30/9£83

Sat 17/1011:05 -

Nonstop1h 30m

Tue 3/1113:05 -

Nonstop1h 25m

Deal found 29/9£88

Wed 2/1215:15 -

Nonstop1h 30m

Tue 15/1220:05 -

Nonstop1h 20m

Deal found 28/9£88

Sat 5/1210:55 -

Nonstop1h 35m

Sat 12/1213:05 -

Nonstop1h 25m

Deal found 28/9£89

Best flights from Heathrow to Ireland
Discover carefully curated flight deals from Heathrow to Ireland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 1 October 2026.

Mon 9/1113:25 -

Nonstop1h 30m

Wed 11/1120:40 -

Nonstop1h 20m

Deal found 29/9£92

Thu 12/1110:55 -

Nonstop1h 35m

Sun 15/1113:05 -

Nonstop1h 25m

Deal found 27/9£93

Thu 5/1110:55 -

Nonstop1h 35m

Mon 9/1113:05 -

Nonstop1h 25m

Deal found 26/9£119

Fri 6/1117:05 -

1 stop6h 20m

Sun 8/1106:00 -

1 stop6h 05m

Deal found 26/9£150

Thu 12/1110:55 -

Nonstop1h 35m

Sun 15/1113:05 -

Nonstop1h 25m

Deal found 27/9£100

Mon 7/1210:55 -

Nonstop1h 35m

Fri 11/1213:05 -

Nonstop1h 25m

Deal found 28/9£100

Mon 28/1206:30 -

Nonstop1h 20m

Mon 4/120:40 -

Nonstop1h 20m

Deal found 26/9£102

Wed 4/1110:55 -

Nonstop1h 35m

Fri 6/1113:05 -

Nonstop1h 25m

Deal found 30/9£109

Sat 7/1110:55 -

Nonstop1h 35m

Sun 8/1108:30 -

2 stops24h 40m

Deal found 26/9£133

Fri 16/1011:05 -

Nonstop1h 30m

Mon 19/1013:05 -

Nonstop1h 25m

Deal found 28/9£120

Thu 12/1108:25 -

Nonstop1h 30m

Sun 15/1120:40 -

Nonstop1h 20m

Deal found 27/9£123

Sat 14/1108:40 -

1 stop14h 45m

Sun 15/1106:00 -

1 stop6h 05m

Deal found 30/9£151

Sat 17/1007:40 -

1 stop9h 50m

Tue 20/1010:25 -

1 stop4h 35m

Deal found 26/9£142

Sun 1/1116:15 -

Nonstop1h 30m

Sat 7/1116:10 -

Nonstop1h 25m

Deal found 28/9£123

Thu 12/1110:00 -

1 stop13h 25m

Mon 16/1105:40 -

1 stop13h 35m

Deal found 25/9£151

Fri 20/1120:50 -

2 stops19h 35m

Sun 22/1113:05 -

Nonstop1h 25m

Deal found 29/9£144

Thu 5/1106:30 -

1 stop4h 10m

Sun 8/1106:00 -

1 stop6h 05m

Deal found 25/9£151

Thu 24/1206:30 -

Nonstop1h 20m

Mon 28/1220:40 -

Nonstop1h 20m

Deal found 26/9£127

Wed 11/1109:50 -

1 stop7h 20m

Wed 18/1110:35 -

1 stop9h 15m

Deal found 27/9£149

Sat 21/1111:15 -

1 stop5h 25m

Mon 23/1111:15 -

1 stop8h 00m

Deal found 30/9£151

Thu 5/1106:30 -

1 stop4h 10m

Mon 9/1105:40 -

1 stop11h 20m

Deal found 26/9£151

Tue 20/1013:25 -

1 stop4h 10m

Mon 23/1117:50 -

1 stop14h 15m

Deal found 29/9£152

Tue 13/1008:50 -

1 stop8h 45m

Wed 14/1010:40 -

1 stop5h 20m

Deal found 28/9£156

Sun 8/1110:00 -

Nonstop1h 30m

Thu 12/1120:05 -

Nonstop1h 20m

Deal found 27/9£190

Thu 5/1106:30 -

1 stop4h 10m

Mon 16/1111:15 -

1 stop5h 45m

Deal found 28/9£160

Wed 7/1008:15 -

Nonstop1h 25m

Sat 10/1018:45 -

Nonstop1h 15m

Deal found 30/9£166

Fri 20/1120:50 -

2 stops21h 50m

Sun 22/1120:05 -

Nonstop1h 20m

Deal found 26/9£157

Sat 7/1114:15 -

Nonstop1h 30m

Thu 12/1120:05 -

Nonstop1h 20m

Deal found 27/9£190

Thu 12/1117:05 -

1 stop6h 20m

Thu 19/1111:15 -

1 stop8h 00m

Deal found 28/9£161

Sat 21/1112:10 -

1 stop5h 05m

Tue 24/1110:25 -

1 stop9h 25m

Deal found 30/9£158

Find flight deals from Heathrow to Ireland

Round-trip from	£65
One-way from	£38
Popular in	December
Cheapest in	January
Average price	£81
Good round-trip deal	£102 or less
Good one-way deal	£83 or less

British Airways
21/11-21/11
Nonstop
2h 45m total
London to Ireland

Search Deals

Aer Lingus
29/10-31/12
Nonstop
1h 20m total
London to Ireland

Search Deals

High demand for flights, 10% potential price rise

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£2 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Price to beat on a round-trip flight from London Heathrow to Ireland.

Search Deals

Price to beat on a one-way flight from London Heathrow to Ireland.

Search Deals

Cheapflights 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

Cheapest return flight

LondonKnock

LHR London Heathrow - NOC Knock Intl

LHRNOC

London Heathrow

Fri 11/12

10:55-12:30

Nonstop1h 35m

Knock Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£46

LondonKnock

LHR London Heathrow - NOC Knock Intl

LHRNOC

London Heathrow

Thu 15/10

11:05-12:35

Nonstop1h 30m

Knock Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£46

LondonKnock

LHR London Heathrow - NOC Knock Intl

LHRNOC

London Heathrow

Mon 12/10

11:05-12:35

Nonstop1h 30m

Knock Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£46

LondonShannon

LHR London Heathrow - SNN Shannon

LHRSNN

London Heathrow

Mon 12/10

19:10-20:35

Nonstop1h 25m

Shannon

Wed 31/12

00:00-00:00

Nonstop0h 00m

£48

LondonKnock

LHR London Heathrow - NOC Knock Intl

LHRNOC

London Heathrow

Wed 4/11

10:55-12:30

Nonstop1h 35m

Knock Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£50

Fastest return journey

LondonDublin

LHR London Heathrow - DUB Dublin

LHRDUB

London Heathrow

Mon 30/11

06:30-07:50

Nonstop1h 20m

Dublin

Wed 31/12

00:00-00:00

Nonstop0h 00m

£63

LondonDublin

LHR London Heathrow - DUB Dublin

LHRDUB

London Heathrow

Sat 26/12

06:30-07:50

Nonstop1h 20m

Dublin

Wed 31/12

00:00-00:00

Nonstop0h 00m

£63

LondonDublin

LHR London Heathrow - DUB Dublin

LHRDUB

London Heathrow

Fri 18/12

06:30-07:50

Nonstop1h 20m

Dublin

Wed 31/12

00:00-00:00

Nonstop0h 00m

£65

LondonDublin

LHR London Heathrow - DUB Dublin

LHRDUB

London Heathrow

Sun 15/11

08:25-09:55

Nonstop1h 30m

Dublin

Wed 31/12

00:00-00:00

Nonstop0h 00m

£66

LondonShannon

LHR London Heathrow - SNN Shannon

LHRSNN

London Heathrow

Fri 9/10

19:10-20:35

Nonstop1h 25m

Shannon

Wed 31/12

00:00-00:00

Nonstop0h 00m

£73

Flights are sorted by cheapest return flights first.

Deals found on 26/9

Showing 1-10 of 60 resultsSorted by cheapest first

...

Best time to book a flight from Heathrow to Ireland

Have a flexible travel schedule? Discover the best time to fly to Ireland from Heathrow with our price prediction graph.

LHR-DUB

LHR-NOC

LHR-ORK

LHR-KIR

LHR-SNN

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Ireland

LHR-IE0

LHR-DUB

LHR-NOC

LHR-ORK

LHR-KIR

What is the cheapest month to book a flight from London Heathrow Airport to Ireland?

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Ireland (average of £116). Flying from London Heathrow Airport to Ireland in December is currently the most expensive (average of £153). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LHR to IE?

It’s typically best to fly out from London Heathrow Airport to Ireland in the afternoon. Doing so could potentially save you 55% on the flight price compared to flying in the morning, which is usually more expensive.

Weekly flight availability from London Heathrow Airport to Ireland

The most flights from LHR to IE0 are scheduled on a Monday (74 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (45 on average).

How often are flights from London to Ireland delayed?

About 13% of weekly flights between London and Ireland have experienced delays in the past year, with the average delay time being 105 minutes.

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

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

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

Tuesday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

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

Over the past year, Aer Lingus have had the lowest number of delays on this route, with just 12% of flights being delayed.

How far ahead should I book a flight from London Heathrow Airport to Ireland?

The best time to book flights from London Heathrow Airport to Ireland is 86 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest day to fly from London Heathrow Airport to Ireland?

Travellers seeking maximum savings on their London Heathrow Airport to Ireland flight should consider departing on Saturday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Ireland

Read through reviews of airlines operating flights from London Heathrow Airport to Ireland, such as Aer Lingus,Ryanair, andBritish Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Aer Lingus

7.3

Good

1,801 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Griffith,Feb 2026

MAN - DUB

Great experience. Crew was friendly, food was better than what I have experienced with some other airlines and seat pitch was adequate. I would fly Aer Lingus again.

Aer Lingus

7.3

Good

1,801 reviews

Aer Lingus

7.3

Good

1,801 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Griffith,Feb 2026

MAN - DUB

Great experience. Crew was friendly, food was better than what I have experienced with some other airlines and seat pitch was adequate. I would fly Aer Lingus again.

Ryanair

6.9

Okay

5,450 reviews

Aer Lingus

7.3

Good

1,801 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Griffith,Feb 2026

MAN - DUB

Great experience. Crew was friendly, food was better than what I have experienced with some other airlines and seat pitch was adequate. I would fly Aer Lingus again.

British Airways

6.7

Okay

8,243 reviews

Aer Lingus

7.3

Good

1,801 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Griffith,Feb 2026

MAN - DUB

Great experience. Crew was friendly, food was better than what I have experienced with some other airlines and seat pitch was adequate. I would fly Aer Lingus again.

Related info for your journey

How long is the flight from London Heathrow Airport to Ireland?
Departing from London Heathrow Airport to Ireland will take you 1h 30m. There are 279 mi between London Heathrow Airport and Ireland. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the most popular routes from London Heathrow Airport to Ireland?
The most popular flight routes from London Heathrow Airport to Ireland are London Heathrow - Dublin, London Heathrow - Cork and London Heathrow - Shannon.
What are the most reliable airlines from London Heathrow Airport to Ireland?
No one likes to see their flight delayed. When booking a flight from London Heathrow Airport to Ireland consider choosing Air Canada (89%), Aer Lingus (81%) or Qatar Airways (80%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from London Heathrow Airport to Ireland?
Looking for the cheapest flight from London Heathrow Airport to Ireland? While on average our users pay £457, our data indicates the cheapest price to be £62. The most popular route (London Heathrow - Dublin), is priced around £70.
Can I find deals for flights from Heathrow to Ireland that include hotel bookings?
Yes. In addition to deals on Heathrow to Ireland flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Heathrow to Ireland?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Ireland.
Can I find deals for business class flights from Heathrow to Ireland?
Yes. Cheapflights offers flight deals from Heathrow to Ireland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from London Heathrow Airport to Ireland?
Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Ireland (average of £116). Flying from London Heathrow Airport to Ireland in December is currently the most expensive (average of £153). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Heathrow to Ireland

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Stansted to Bruxelles-National flights

London City to Leonardo da Vinci/Fiumicino flights

Top 3 airlines flying from Heathrow to Ireland

Airline	Cheapest	Average	Flexibility	On-time
Ryanair	Cheapest£38	Average£76	FlexibilityNo cancel fee	On-timeN/A	Search Ryanair flights
British Airways	Cheapest£75	Average£174	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Aer Lingus	Cheapest£83	Average£152	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights

Fly with Cheapflights

How does Cheapflights help users find flights from Heathrow to Ireland?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Heathrow to Ireland. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Ireland?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Heathrow to Ireland.

Can Cheapflights find flights from Heathrow to Ireland with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Heathrow to Ireland, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Heathrow to Ireland become cheaper?

Yes! Start tracking prices for Heathrow to Ireland flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from London Heathrow Airport to Ireland from £38

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Heathrow to Ireland

Cheapest flights from Heathrow to IrelandExplore the most affordable flight options available from Heathrow to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 October 2026.

Explore the most affordable flight options available from Heathrow to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 October 2026.

Best flights from Heathrow to IrelandDiscover carefully curated flight deals from Heathrow to Ireland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 1 October 2026.

Discover carefully curated flight deals from Heathrow to Ireland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 1 October 2026.

Direct flights from Heathrow to IrelandExplore direct flight options from Heathrow to Ireland based on user searches, and compare prices and availability for your desired travel dates. Data last updated 1 October 2026.

Explore direct flight options from Heathrow to Ireland based on user searches, and compare prices and availability for your desired travel dates. Data last updated 1 October 2026.

Last-minute flights from Heathrow to IrelandDiscover last-minute flight deals from Heathrow to Ireland. Data last updated 1 October 2026 and is based on user searches.

Discover last-minute flight deals from Heathrow to Ireland. Data last updated 1 October 2026 and is based on user searches.

One-way flights from Heathrow to IrelandSearch for one-way flight options from Heathrow to Ireland. Find affordable one-way fares based on user searches. Data last updated 1 October 2026.

Search for one-way flight options from Heathrow to Ireland. Find affordable one-way fares based on user searches. Data last updated 1 October 2026.

Find flight deals from Heathrow to Ireland

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

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

Best time to book a flight from Heathrow to Ireland

Have a flexible travel schedule? Discover the best time to fly to Ireland from Heathrow with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from London Heathrow Airport to Ireland?

What is the cheapest time of day to fly from LHR to IE?

Find hourly flight availability from Heathrow to Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 1 October 2026.

It’s typically best to fly out from London Heathrow Airport to Ireland in the afternoon. Doing so could potentially save you 55% on the flight price compared to flying in the morning, which is usually more expensive.

Weekly flight availability from London Heathrow Airport to Ireland

Explore weekly flight availability from Heathrow to Ireland. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 1 October 2026.

The most flights from LHR to IE0 are scheduled on a Monday (74 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (45 on average).

How often are flights from London to Ireland delayed?

About 13% of weekly flights between London and Ireland have experienced delays in the past year, with the average delay time being 105 minutes.

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

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

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

Tuesday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

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

Over the past year, Aer Lingus have had the lowest number of delays on this route, with just 12% of flights being delayed.

How far ahead should I book a flight from London Heathrow Airport to Ireland?

The best time to book flights from London Heathrow Airport to Ireland is 86 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest day to fly from London Heathrow Airport to Ireland?

Use this chart to determine the cheapest time to fly return from Heathrow to Ireland. Price data was last updated on 26 September 2026.

Travellers seeking maximum savings on their London Heathrow Airport to Ireland flight should consider departing on Saturday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Ireland

Read through reviews of airlines operating flights from London Heathrow Airport to Ireland, such as Aer Lingus,Ryanair, andBritish Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

How long is the flight from London Heathrow Airport to Ireland?

What are the most popular routes from London Heathrow Airport to Ireland?

What are the most reliable airlines from London Heathrow Airport to Ireland?

What are the cheapest flights from London Heathrow Airport to Ireland?

Can I find deals for flights from Heathrow to Ireland that include hotel bookings?

How can I find direct flights from Heathrow to Ireland?

Can I find deals for business class flights from Heathrow to Ireland?

What is the cheapest month to book a flight from London Heathrow Airport to Ireland?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Heathrow to Ireland

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Ireland by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to

Book a non-stop flight to one of these other cities located in .

Search flights from Heathrow to Ireland by cabin class

Find flights from Heathrow to Ireland, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Heathrow and Ireland flights

Browse other Heathrow and Ireland flight options. Last updated on 1 October 2026.

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Heathrow to Ireland flights

Consider these flights travelling from Heathrow to Ireland.

Fly to Ireland regions

Consider these flights travelling to Ireland regions.

Top 3 airlines flying from Heathrow to Ireland

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Cheapest flights from Heathrow to Ireland
Explore the most affordable flight options available from Heathrow to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 October 2026.

Best flights from Heathrow to Ireland
Discover carefully curated flight deals from Heathrow to Ireland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 1 October 2026.

Direct flights from Heathrow to Ireland
Explore direct flight options from Heathrow to Ireland based on user searches, and compare prices and availability for your desired travel dates. Data last updated 1 October 2026.

Last-minute flights from Heathrow to Ireland
Discover last-minute flight deals from Heathrow to Ireland. Data last updated 1 October 2026 and is based on user searches.

One-way flights from Heathrow to Ireland
Search for one-way flight options from Heathrow to Ireland. Find affordable one-way fares based on user searches. Data last updated 1 October 2026.