€44 Find cheap flights from London Heathrow Airport to Ireland

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Ireland departing on 12/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Best Ireland Flight Deals

Cheapest return prices found by our users on KAYAK in the last 72 hours

Dublin
Dublindirect€69
Cork
Corkdirect€147
Shannon
Shannondirect€130
Knock
Knockdirect€112
Donegal
Donegal1 stop€185
Milltown (Kerry)
Milltown (Kerry)1 stop€163

Good to know

Low season

January

High season

August

Cheapest flight

€44
Best time to beat the crowds (30% less expensive on average)
Most popular time to fly (16% more expensive on average)
Flight from London Heathrow Airport to Dublin

FAQs - booking Ireland flights

  • How does KAYAK find such low prices on flights from London Heathrow Airport to Ireland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London Heathrow Airport to Ireland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London Heathrow Airport to Ireland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ireland from London Heathrow Airport is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London Heathrow Airport to Ireland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Ireland with an airline and back to London Heathrow Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Heathrow Airport to Ireland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ireland from London Heathrow Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Ireland

  • Morning departure is around 9% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top airlines flying from Heathrow to Ireland

Need help choosing which airline to fly with from Heathrow to Ireland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
Aer LingusOverall score based on 1089 reviews
7.1Comfort
6.5Food
7.3Boarding
8.0Crew
6.8Entertainment
Airline reviews

Very sad, couldn't stop crying. Was an hour delay in Ireland and when we got to Canada the flight was boarded and couldn't get on. Was the last flight of the day. Now in a hotel waiting on a stand by.I have to got o work, so I'll go first available while my son stays in the hotel til one's available

2.0 MediocreAnonymous, Oct 2024MAN - DUB
Read more Aer Lingus reviews

Very sad, couldn't stop crying. Was an hour delay in Ireland and when we got to Canada the flight was boarded and couldn't get on. Was the last flight of the day. Now in a hotel waiting on a stand by.I have to got o work, so I'll go first available while my son stays in the hotel til one's available

Both flights late. Almost missed connecting flight and flight staff not willing to help expedite us off the plane.

Probably my favorite airline and way to go to Europe. Everything went smoothly! Food was tasty, crew was pleasant. Really cannot complain!

Golf Bags never made it on the flight. Very expensive golf bag and. Clubs,shoes, clothing. Will file a claim against Aer Lingus

Horrible. Garbage airline. Due to the strike we got a replacement plane/crew. I didn't get my exit row seat I paid for. Food was horrible. Plane was hot and didn't have AC vents.

Great customer service. Frequent updates from the pilot. Smooth flight. Good entertainment. Meal service.

The first leg of my 2 flights were delayed, causing me to miss my second flight and have to stay the whole night in Dublin. Super upset with this experience, and I still need to figure out how to get compensated for this.

Everything went well, but could have used a bit more legroom.

The flight got us safely from point a to point b and on time. For a transatlantic flight that isnt nothing. Flight crew was kind and professional. The seats are super uncomfortable (worse than domestic budget airlines) and the cabin was DIRTY.

Long unexplained delay, uncomfortable back row, long waits for trash collection.

Flight was fine, food better than anticipated and flight attendants were helpful and friendly.

Our headphone plug is broken, we can not enjoy our entertainment, especially traveling with 5 year old who like to watch movie

Reasonably comfortable. Plenty of room. Crew were attentive and continually informing passengers of position. Although stuck in runway for 1 hour, weather issues, it felt like we were the crews first priority

Need a do not disturb sign if you wish not to have any meals so that they can wake you or have the meals served . Left very sad and hungry .

Pleasant, attentive and efficient flight attendants. Boarding process and seat selection easy. No internet on transatlantic flight. Extremely uncomfortable, rigid seat.

No entertainment and the seats are well worn.! To the point it feels like your sitting in a bowl

The seats of the Boeing 787-10 Dreamliner were ridiculously uncomfortable. I was on 10 flights during this vacation and this plane was super uncomfortable both times I was on one whereas all of the others were perfectly fine. Additionally, these planes do not have any air vents that passengers can control, the climate is entirely controlled by the crew which made for an extremely uncomfortable temperature for the duration. The flight attendants tried to make everyone happy with the temperature but several people you could tell were excessively warm and just wanted a bit of airflow.

Everything was fine except not posting the gate number until 14 minutes before boarding. In an airport the size of Heathrow, that was unacceptable.

We already had a five hour layover in London, and then they cancelled our flight about half hour before we were due to board. They wouldn't give us access to the lounge and hanging around the extremely busy terminal for another three hours until our next flight was crappy. 8 hours in a busy terminal is awful. The least they could have done was give us access to one of their quiet, comfortable lounges for the inconvenience. I heard from others that they do this a lot -- cancel these short flights if they're not completely full. When we got onto the next flight it was absolutely packed and uncomfortable. Just very disappointing. British Airways used to be a great airline to fly with, but it doesn't feel that way at all now.

Don't fly thru London Awful and huge U need 4 hrs to transfer cuz u have to tale buses to and fro from airplanes Bad business

Book cheap flights from London to Ireland

Recent return flight deals

3/12Tue
directBritish Airways
1h 20mLHR-DUB
10/12Tue
directBritish Airways
1h 35mDUB-LHR
€69
18/2Tue
directBritish Airways
1h 25mLHR-DUB
25/2Tue
directBritish Airways
1h 35mDUB-LHR
€70
5/2Wed
directBritish Airways
1h 25mLHR-DUB
7/2Fri
directBritish Airways
1h 20mDUB-LHR
€72
11/12Wed
directAer Lingus
1h 20mLHR-SNN
18/12Wed
directAer Lingus
1h 20mSNN-LHR
€107
3/12Tue
direct
1h 20mLHR-DUB
10/12Tue
direct
1h 20mDUB-LHR
€109
3/12Tue
direct
1h 20mLHR-DUB
9/12Mon
direct
1h 15mDUB-LHR
€110
3/1Fri
directAer Lingus
1h 30mLHR-NOC
10/1Fri
directAer Lingus
1h 30mNOC-LHR
€112
10/1Fri
1 stopKLM
4h 00mLHR-DUB
12/1Sun
1 stopKLM
7h 15mDUB-LHR
€170
25/1Sat
1 stopAir France
9h 20mLHR-DUB
27/1Mon
1 stopAir France
4h 50mDUB-LHR
€171
31/1Fri
1 stopKLM
6h 40mLHR-DUB
10/2Mon
1 stopKLM
5h 50mDUB-LHR
€173

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Recent one-way flight deals

12/2Wed
directBritish Airways
1h 25mLHR-DUB
€44
17/5Sat
directBritish Airways
1h 25mLHR-DUB
€45
26/11Tue
directAer Lingus
1h 25mLHR-SNN
€60
8/1Wed
directAer Lingus
1h 30mLHR-SNN
€61
25/1Sat
1 stopVueling
15h 05mLHR-DUB
€78
11/12Wed
1 stopVueling
16h 40mLHR-DUB
€81
5/1Sun
1 stop
13h 25mLHR-DUB
€87
20/2Thu
1 stop
15h 50mLHR-ORK
€88
21/2Fri
1 stopKLM
6h 00mLHR-ORK
€111
15/2Sat
1 stopKLM
4h 10mLHR-DUB
€111

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Last minute flights from Heathrow to Ireland

Last minute flight, train and bus deals

23/11Sat
directAer Lingus
1h 30mLHR-SNN
25/11Mon
directAer Lingus
1h 20mSNN-LHR
€132
25/11Mon
directAer Lingus
1h 20mLHR-SNN
2/12Mon
directAer Lingus
1h 20mSNN-LHR
€134
23/11Sat
directBritish Airways
1h 20mLHR-DUB
28/11Thu
directBritish Airways
1h 20mDUB-LHR
€140
21/11Thu
directBritish Airways
1h 25mLHR-DUB
24/11Sun
directBritish Airways
1h 25mDUB-LHR
€144
23/11Sat
multi-stop
8h 25mLHR-DUB
8/12Sun
direct
1h 25mDUB-LHR
€180
23/11Sat
multi-stopAir France
7h 50mLHR-DUB
25/11Mon
multi-stopAir France
7h 40mDUB-LHR
€185
21/11Thu
multi-stop
15h 45mLHR-ORK
26/11Tue
direct
1h 15mORK-LHR
€189
23/11Sat
multi-stopAir France
7h 50mLHR-DUB
27/11Wed
multi-stopAir France
7h 40mDUB-LHR
€197
23/11Sat
multi-stopKLM
7h 45mLHR-ORK
26/11Tue
multi-stopKLM
10h 05mORK-LHR
€256
24/11Sun
multi-stopKLM
6h 10mLHR-DUB
28/11Thu
multi-stopKLM
7h 15mDUB-LHR
€297

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Everything you need to know for your flight from Heathrow to Ireland

Information on your arrival and departure airports

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