What are the cheapest airlines to fly from Ireland to London Heathrow Airport one-way?

The cheapet airlines for a one-way flight from Ireland to London Heathrow Airport are British Airways (£34), Aer Lingus (£40), and Vueling (£60).

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

Most travelers choose Dublin - London Heathrow, Shannon - London Heathrow or Cork - London Heathrow when deciding on the best route from Ireland to London Heathrow Airport.

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

On average you can expect to pay £1,168 for a flight from Ireland to London Heathrow Airport. The cheapest flight overall is £39 while the most popular route, (Dublin - London Heathrow) is currently priced at £69.

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

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Ireland to London Heathrow Airport on time: LATAM Airlines (82%), Kenya Airways (78%), British Airways (77%).

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

Saturday flights are generally found to be more expensive for flights from Ireland to London Heathrow Airport. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to London Heathrow Airport.

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

Users have found that booking a flight from Ireland to London Heathrow Airport at least 56 days early can save you up to 123% on average compared to booking a flight this week. If booking 56 days before your flight isn’t an option for you, users have found flights from Ireland to London Heathrow Airport for as little as £96 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as £137 for flights departing within the next 3 days.

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

The best pricing can be found in the month of January. Prices to London Heathrow Airport from Ireland average £90. You can even find prices in January for less than £90, as users have found deals to London Heathrow Airport from as low as £25. The month of May appears to be one of the more expensive times to travel to London Heathrow Airport from Ireland. Flying in the targeted month can save you up to 31%.

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

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

How can I find direct flights from Ireland to Heathrow?

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

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

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

£300+ Flights from Ireland to London Heathrow Airport

Cheap flight deals from Ireland to Heathrow

Round-trip from	£70
One-way from	£34
Popular in	May
Cheapest in	January
Average price	£93
Good round-trip deal	£72 or less
Good one-way deal	£48 or less

Aer Lingus
11/4-23/4
Nonstop
2h 55m total
Ireland to London

Search Deals

British Airways
24/5
Nonstop
1h 20m total
Ireland to London

Search Deals

Highest demand for flights based on searches. 13% potential increase in price (£10 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£3 potential savings vs. average return price).

Search Deals

Average for round-trip flights in March 2025

Search Deals

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

Search Deals

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

Search Deals

Find flight deals from Ireland to Heathrow

Cheapest flights from Ireland to Heathrow
Explore the most affordable flight options available from Ireland to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 March 2025.

Tue 23/920:20DUB - LHR

Nonstop1h 20mBritish Airways

Thu 25/906:20LHR - DUB

Nonstop1h 25mBritish Airways

Deal found 7/3£70

Fri 11/421:15SNN - LHR

Nonstop1h 25mAer Lingus

Wed 23/414:40LHR - SNN

Nonstop1h 30mAer Lingus

Deal found 8/3£70

Tue 8/413:05NOC - LHR

Nonstop1h 25mAer Lingus

Tue 29/411:05LHR - NOC

Nonstop1h 30mAer Lingus

Deal found 7/3£71

Tue 1/420:30ORK - LHR

Nonstop1h 15mAer Lingus

Wed 2/422:25LHR - ORK

Nonstop1h 20mAer Lingus

Deal found 7/3£83

Sat 29/315:30DUB - LHR

Nonstop1h 20mAer Lingus

Mon 31/321:10LHR - DUB

Nonstop1h 20mAer Lingus

Deal found 7/3£90

Sat 29/320:35DUB - LHR

Nonstop1h 20mMultiple Airlines

Mon 31/321:10LHR - DUB

Nonstop1h 20mMultiple Airlines

Deal found 7/3£93

Fri 4/421:15SNN - LHR

Nonstop1h 25mMultiple Airlines

Mon 7/421:35LHR - SNN

1 stop16h 20mMultiple Airlines

Deal found 7/3£127

Sat 5/420:30ORK - LHR

Nonstop1h 15mMultiple Airlines

Sat 12/421:45LHR - ORK

1 stop11h 30mMultiple Airlines

Deal found 7/3£141

Wed 9/413:05NOC - LHR

Nonstop1h 25mMultiple Airlines

Mon 28/421:35LHR - NOC

1 stop13h 10mMultiple Airlines

Deal found 8/3£142

Sat 15/316:05ORK - LHR

Nonstop1h 15mBritish Airways

Sun 23/309:45LHR - ORK

Nonstop1h 25mBritish Airways

Deal found 6/3£153

Fri 9/511:10DUB - LHR

1 stop5h 05mKLM

Tue 13/506:30LHR - DUB

1 stop3h 55mKLM

Deal found 6/3£158

Thu 3/408:20DUB - LHR

1 stop5h 55mVueling

Thu 24/415:05LHR - DUB

1 stop16h 20mVueling

Deal found 7/3£159

Best flights from Ireland to Heathrow
Discover carefully curated flight deals from Ireland to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 8 March 2025.

Fri 11/421:15SNN - LHR

Nonstop1h 25mAer Lingus

Wed 23/414:40LHR - SNN

Nonstop1h 30mAer Lingus

Deal found 8/3£70

Tue 19/820:20DUB - LHR

Nonstop1h 20mBritish Airways

Wed 27/806:15LHR - DUB

Nonstop1h 25mBritish Airways

Deal found 8/3£73

Sat 29/320:35DUB - LHR

Nonstop1h 20mMultiple Airlines

Mon 31/321:10LHR - DUB

Nonstop1h 20mMultiple Airlines

Deal found 7/3£93

Tue 8/413:05NOC - LHR

Nonstop1h 25mAer Lingus

Tue 29/411:05LHR - NOC

Nonstop1h 30mAer Lingus

Deal found 7/3£71

Sat 22/305:55DUB - LHR

1 stop8h 30mKLM

Sat 29/314:05LHR - DUB

1 stop8h 00mKLM

Deal found 6/3£156

Thu 3/408:20DUB - LHR

1 stop5h 55mVueling

Thu 24/415:05LHR - DUB

1 stop16h 20mVueling

Deal found 7/3£159

Thu 1/512:20DUB - LHR

1 stop6h 30mScandinavian Airlines

Mon 5/518:40LHR - DUB

1 stop17h 10mScandinavian Airlines

Deal found 7/3£177

Wed 2/418:40DUB - LHR

1 stop13h 15mSWISS

Fri 11/406:00LHR - DUB

1 stop25h 55mSWISS

Deal found 8/3£180

Tue 1/420:30ORK - LHR

Nonstop1h 15mAer Lingus

Wed 2/422:25LHR - ORK

Nonstop1h 20mAer Lingus

Deal found 7/3£83

Sat 29/315:30DUB - LHR

Nonstop1h 20mAer Lingus

Mon 31/321:10LHR - DUB

Nonstop1h 20mAer Lingus

Deal found 7/3£90

Fri 4/421:15SNN - LHR

Nonstop1h 25mMultiple Airlines

Mon 7/421:35LHR - SNN

1 stop16h 20mMultiple Airlines

Deal found 7/3£127

Fri 4/417:00ORK - LHR

1 stop5h 10mLufthansa

Wed 9/407:25LHR - ORK

2 stops9h 00mLufthansa

Deal found 7/3£270

Direct flights from Ireland to Heathrow
Explore direct flight options from Ireland to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 8 March 2025.

Fri 11/421:15SNN - LHR

Nonstop1h 25mAer Lingus

Wed 23/414:40LHR - SNN

Nonstop1h 30mAer Lingus

Deal found 8/3£70

Tue 8/413:05NOC - LHR

Nonstop1h 25mAer Lingus

Tue 29/411:05LHR - NOC

Nonstop1h 30mAer Lingus

Deal found 7/3£71

Tue 19/820:20DUB - LHR

Nonstop1h 20mBritish Airways

Wed 27/806:15LHR - DUB

Nonstop1h 25mBritish Airways

Deal found 8/3£73

Tue 1/420:30ORK - LHR

Nonstop1h 15mAer Lingus

Wed 2/422:25LHR - ORK

Nonstop1h 20mAer Lingus

Deal found 7/3£83

Sat 29/315:30DUB - LHR

Nonstop1h 20mAer Lingus

Mon 31/321:10LHR - DUB

Nonstop1h 20mAer Lingus

Deal found 7/3£90

Sat 29/320:35DUB - LHR

Nonstop1h 20mMultiple Airlines

Mon 31/321:10LHR - DUB

Nonstop1h 20mMultiple Airlines

Deal found 7/3£93

Thu 3/416:55SNN - LHR

Nonstop1h 25mMultiple Airlines

Wed 9/419:10LHR - SNN

Nonstop1h 25mMultiple Airlines

Deal found 7/3£143

Fri 21/317:35ORK - LHR

Nonstop1h 15mBritish Airways

Sat 29/318:05LHR - ORK

Nonstop1h 25mBritish Airways

Deal found 7/3£154

Fri 30/520:30ORK - LHR

Nonstop1h 15mMultiple Airlines

Sat 31/509:20LHR - ORK

Nonstop1h 25mMultiple Airlines

Deal found 7/3£174

Thu 3/421:15SNN - LHR

Nonstop1h 25mBritish Airways

Thu 10/419:10LHR - SNN

Nonstop1h 25mBritish Airways

Deal found 7/3£206

Thu 1/513:05NOC - LHR

Nonstop1h 25mBritish Airways

Wed 7/511:05LHR - NOC

Nonstop1h 30mBritish Airways

Deal found 7/3£211

Last-minute flights from Ireland to Heathrow
Discover last-minute flight deals from Ireland to Heathrow. Data last updated 8 March 2025 and is based on user searches.

Wed 12/317:35ORK - LHR

Nonstop1h 15mAer Lingus

Wed 19/322:05LHR - ORK

Nonstop1h 20mAer Lingus

Deal found 7/3£152

Fri 14/313:00NOC - LHR

Nonstop1h 30mAer Lingus

Tue 18/311:00LHR - NOC

Nonstop1h 30mAer Lingus

Deal found 8/3£211

Sat 15/319:45DUB - LHR

Nonstop1h 20mAer Lingus

Fri 21/320:45LHR - DUB

Nonstop1h 20mAer Lingus

Deal found 7/3£119

Sat 15/320:35DUB - LHR

Nonstop1h 20mBritish Airways

Fri 21/308:25LHR - DUB

Nonstop1h 25mBritish Airways

Deal found 8/3£122

Sat 15/317:25SNN - LHR

Nonstop1h 25mAer Lingus

Sat 22/314:15LHR - SNN

Nonstop1h 30mAer Lingus

Deal found 8/3£123

Sat 15/317:25SNN - LHR

Nonstop1h 25mMultiple Airlines

Sat 22/315:30LHR - SNN

1 stop4h 30mMultiple Airlines

Deal found 8/3£145

Sat 15/316:05ORK - LHR

Nonstop1h 15mBritish Airways

Sun 23/309:45LHR - ORK

Nonstop1h 25mBritish Airways

Deal found 6/3£153

Sat 15/305:55DUB - LHR

1 stop8h 30mKLM

Fri 21/317:50LHR - DUB

1 stop4h 15mKLM

Deal found 7/3£217

Sat 15/318:40DUB - LHR

1 stop13h 25mSWISS

Fri 21/312:05LHR - DUB

1 stop5h 45mSWISS

Deal found 8/3£231

Sun 16/318:40DUB - LHR

1 stop13h 25mMultiple Airlines

Fri 21/320:45LHR - DUB

Nonstop1h 20mMultiple Airlines

Deal found 6/3£157

Mon 17/311:55ORK - LHR

Nonstop1h 20mMultiple Airlines

Fri 21/320:25LHR - ORK

1 stop25h 25mMultiple Airlines

Deal found 7/3£203

Mon 17/313:00NOC - LHR

Nonstop1h 30mBritish Airways

Tue 25/311:00LHR - NOC

Nonstop1h 30mBritish Airways

Deal found 8/3£212

One-way flights from Ireland to Heathrow
Search for one-way flight options from Ireland to Heathrow. Find affordable one-way fares based on user searches. Data last updated 8 March 2025.

Sat 24/520:10DUB - LHR

Nonstop1h 20mBritish Airways

Deal found 7/3£34

Mon 19/521:15SNN - LHR

Nonstop1h 25mAer Lingus

Deal found 7/3£40

Tue 8/420:30ORK - LHR

Nonstop1h 15mAer Lingus

Deal found 7/3£41

Sat 22/318:30DUB - LHR

Nonstop1h 20mAer Lingus

Deal found 7/3£44

Fri 16/513:05NOC - LHR

Nonstop1h 25mAer Lingus

Deal found 7/3£55

Tue 29/419:30DUB - LHR

1 stop18h 45mVueling

Deal found 7/3£60

Thu 1/512:20DUB - LHR

1 stop6h 30mScandinavian Airlines

Deal found 7/3£61

Tue 20/518:40DUB - LHR

1 stop23h 10mSWISS

Deal found 6/3£66

Mon 14/420:30ORK - LHR

Nonstop1h 15mBritish Airways

Deal found 6/3£71

Wed 26/320:05ORK - LHR

1 stop18h 20mMultiple Airlines

Deal found 7/3£73

Fri 9/508:55DUB - LHR

1 stop7h 20mKLM

Deal found 6/3£74

Thu 3/711:25KIR - LHR

1 stop10h 10mMultiple Airlines

Deal found 6/3£77

Find flights from Ireland to Heathrow within your budget

Fly from

Fly to

Route

Depart

Return

Price

DublinLondon

DUB - LHR

DUBLHR

Dublin

Mon 7/4

20:55-22:15

Nonstop1h 20m

London Heathrow

Wed 23/4

06:15-07:40

Nonstop1h 25m

£83

CorkLondon

ORK - LHR

ORKLHR

Cork

Tue 1/4

20:30-21:45

Nonstop1h 15m

London Heathrow

Wed 2/4

22:25-23:45

Nonstop1h 20m

£83

KnockLondon

NOC - LHR

NOCLHR

Knock Intl

Thu 10/4

13:05-14:30

Nonstop1h 25m

London Heathrow

Tue 29/4

11:05-12:35

Nonstop1h 30m

£86

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Fri 4/4

21:15-22:40

Nonstop1h 25m

London Heathrow

Mon 7/4

19:10-20:35

Nonstop1h 25m

£86

DublinLondon

DUB - LHR

DUBLHR

Dublin

Sat 29/3

15:30-16:50

Nonstop1h 20m

London Heathrow

Mon 31/3

21:10-22:30

Nonstop1h 20m

£90

DublinLondon

DUB - LHR

DUBLHR

Dublin

Sat 29/3

20:35-21:55

Nonstop1h 20m

London Heathrow

Mon 31/3

21:10-22:30

Nonstop1h 20m

£93

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Fri 4/4

21:15-22:40

Nonstop1h 25m

London Heathrow

Mon 7/4

21:35-13:55

1 stop16h 20m

£127

CorkLondon

ORK - LHR

ORKLHR

Cork

Sat 5/4

20:30-21:45

Nonstop1h 15m

London Heathrow

Sat 12/4

21:45-09:15

1 stop11h 30m

£141

KnockLondon

NOC - LHR

NOCLHR

Knock Intl

Wed 9/4

13:05-14:30

Nonstop1h 25m

London Heathrow

Mon 28/4

21:35-10:45

1 stop13h 10m

£142

CorkLondon

ORK - LHR

ORKLHR

Cork

Fri 21/3

17:35-18:50

Nonstop1h 15m

London Heathrow

Sat 29/3

18:05-19:30

Nonstop1h 25m

£154

Flights are sorted by cheapest return flights first.

Deals found on 7/3

Showing 1-10 of 50 results

...

Best time to book a flight from Ireland to Heathrow

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

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.

Travel insights for flights from Ireland to Heathrow

Get recent, data-driven insights about flights from Ireland to Heathrow including ideal travel times, pricing trends, and more.

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

Currently, January is the cheapest month in which you can book a flight from Ireland to London Heathrow Airport (average of £112). Flying from Ireland to London Heathrow Airport in August is currently the most expensive (average of £164). 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 IE to LHR?

It’s optimal to fly from Ireland to London Heathrow Airport in the evening. By choosing this option you can save up to 77% on the cost of your flight, compared to a flight in the afternoon.

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

Travellers seeking maximum savings on their Ireland to London Heathrow Airport flight should consider departing on Friday evenings 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.

Weekly flight availability from Ireland to London Heathrow Airport

The most flights from IE0 to LHR are scheduled on a Friday (70 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (51 on average).

Rainfall in Heathrow by month

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

If weather is an important factor for your trip to London Heathrow Airport, 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Heathrow

Get a feel of what it's like to fly with KLM, Austrian Airlines and SWISS from Ireland to London by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,322 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.

KLM

7.8

Good

1,322 reviews

KLM

7.8

Good

1,322 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Mar 2025

LBA - AMS

Austrian Airlines

7.5

Good

765 reviews

KLM

7.8

Good

1,322 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Mar 2025

LBA - AMS

SWISS

7.5

Good

1,566 reviews

KLM

7.8

Good

1,322 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Mar 2025

LBA - AMS

Air France

7.4

Good

1,431 reviews

KLM

7.8

Good

1,322 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Mar 2025

LBA - AMS

United Airlines

7.4

Good

8,649 reviews

KLM

7.8

Good

1,322 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Mar 2025

LBA - AMS

Related info for your journey

What are the cheapest airlines to fly from Ireland to London Heathrow Airport one-way?
The cheapet airlines for a one-way flight from Ireland to London Heathrow Airport are British Airways (£34), Aer Lingus (£40), and Vueling (£60).
What are the most popular routes from Ireland to London Heathrow Airport?
Most travelers choose Dublin - London Heathrow, Shannon - London Heathrow or Cork - London Heathrow when deciding on the best route from Ireland to London Heathrow Airport.
What are the most reliable airlines from Ireland to London Heathrow Airport?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Ireland to London Heathrow Airport on time: LATAM Airlines (82%), Kenya Airways (78%), British Airways (77%).
What are the cheapest flights from Ireland to London Heathrow Airport?
On average you can expect to pay £1,168 for a flight from Ireland to London Heathrow Airport. The cheapest flight overall is £39 while the most popular route, (Dublin - London Heathrow) is currently priced at £69.
Can I find deals for flights from Ireland to Heathrow that include hotel bookings?
Yes. In addition to deals on Ireland to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Ireland to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ireland to Heathrow.
Can I find deals for business class flights from Ireland to Heathrow?
Yes. Cheapflights offers flight deals from Ireland to Heathrow 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 Ireland to London Heathrow Airport?
Currently, January is the cheapest month in which you can book a flight from Ireland to London Heathrow Airport (average of £112). Flying from Ireland to London Heathrow Airport in August is currently the most expensive (average of £164). 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

Hounslow

Deal

Milton Keynes

Gatwick

Croydon

Luton

Slough

Hayes

Ilford

Eastbourne

Swindon

Northampton

Southend-on-Sea

Crawley

Ipswich

Maidstone

Winchester

Wembley

Southall

Watford

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from Ireland to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£58	Average£128	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Aer Lingus	Cheapest£74	Average£128	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights

Fly with Cheapflights

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

Cheapflights makes it easy to find Ireland to Heathrow flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Heathrow from Ireland.

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

Need flexible booking options for your flight to Heathrow from Ireland? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Of course! You can now track prices for flights from Ireland to Heathrow and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price 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 Ireland to London Heathrow Airport from £34

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 24/5. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ireland to Heathrow

Keep the following information in mind while searching for Ireland to Heathrow flight deals. Data was last updated 8 March 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Ireland to Heathrow

Cheapest flights from Ireland to HeathrowExplore the most affordable flight options available from Ireland to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 March 2025.

Explore the most affordable flight options available from Ireland to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 March 2025.

Find flights from Ireland to Heathrow within your budget

Best time to book a flight from Ireland to Heathrow

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

Travel insights for flights from Ireland to Heathrow

Get recent, data-driven insights about flights from Ireland to Heathrow including ideal travel times, pricing trends, and more.

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

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

Find hourly flight availability from Ireland to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 8 March 2025.

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

Use this chart to determine the cheapest time to fly return from Ireland to Heathrow. Price data was last updated on 16 December 2024.

Weekly flight availability from Ireland to London Heathrow Airport

Explore weekly flight availability from Ireland to Heathrow. 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 8 March 2025.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

Reviews of airlines servicing Heathrow

Get a feel of what it's like to fly with KLM, Austrian Airlines and SWISS from Ireland to London by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Ireland to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines to fly from Ireland to London Heathrow Airport one-way?

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

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

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

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

How can I find direct flights from Ireland to Heathrow?

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

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Alternative routes for Ireland to Heathrow

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Top 2 airlines flying from Ireland to Heathrow

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Cheapest flights from Ireland to Heathrow
Explore the most affordable flight options available from Ireland to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 March 2025.