€56 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 15/4. 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 from Heathrow

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

Dublin
Dublindirect€84
Cork
Corkdirect€113
Shannon
Shannondirect€104
Knock
Knockdirect€117
Donegal
Donegal1 stop€215
Milltown (Kerry)
Milltown (Kerry)1 stop€194

Good to know

Low season

January

High season

August

Cheapest flight

€56
Best time to beat the crowds (26% less expensive on average)
Most popular time to fly and prices are also 0% lower 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 from London Heathrow Airport to Ireland 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 from London Heathrow Airport to Ireland with an airline and back 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 from London Heathrow Airport to Ireland 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

  • Looking for a cheap flight? 25% of our users found tickets from London Heathrow Airport to the following destinations at these prices or less: Dublin €90 one-way - €162 round-trip
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be January, November and December. The cheapest month to fly from London is January.
  • Morning departure is around 6% more expensive than an evening flight, on average*.
See more tips
*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 1076 reviews
7.3Boarding
6.8Entertainment
8.0Crew
7.0Comfort
6.4Food
Airline reviews

Friendly crew who apologised and explained reason for delay. Good on board service. Rather cramped seating. Late departure.

6.0 GoodAnonymous, Oct 2024SNN - LHR
Read more Aer Lingus reviews

Friendly crew who apologised and explained reason for delay. Good on board service. Rather cramped seating. Late departure.

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.

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.

The seat was very uncomfortable. It helped to use the foot rest. Could not sleep because of the seat.

The seats are incredibly uncomfortable. My luggage didn't make it on the flight from London to Nashville.

The plane itself is old and way overcrowded. The crew do a great job of trying to mitigate. It is just uncomfortable for over 8 hours, bearable, but barely. Boarding, and the baggage game, is ludicrous. Why charge extra to check bags when there is not enough room for everyone to "carry-on" and checking is needed? I do not think these issues would be different with other airlines, I believe it is the attitude that squeezes every penny out of each traveler.

Expected a lot better service paying for a business class seat. Seemed to be short on staff and did not get the service I expected.

Nice experience. Baggage arrival in Mumbai wasn't that quick and needs improvement.

I flew Club World and was SHOCKED at how totally absent the crew were for the duration of the flight. So much so that we received no drink service other than the post-departure cocktail and that was it. Wasn't even offered tea/coffee and the in-flight attention was so bad that literally minutes before landing the one crew member for our row was scrambling to pick up left-behind water bottles, glassware, trash. And the rest of the crew had already stowed all carts, he was cramming the trash into the lavatory trash can and was stashing the glassware frantically in the galley as we were on final approach. He was so scrambled he left two overhead lockers wide open (that he'd opened) for landing. Unbelievable!

Paid for first class and was surprised that the seats were the same in economy except no one was in the middle seat. I expected an actual first class seat.

The flight was several times changed. That was inconvenient, to sah the least.

They lost my special meal request and tried to tell me I didn't request it. I had the proof. Then they tried to get me to eat food I can't eat. No apologies

British airways keeps canceling our flights. I won’t be booking any future flights with them

Book cheap flights from London to Ireland

Recent return flight deals

8/2Sat
directBritish Airways
1h 30mLHR-DUB
10/2Mon
directBritish Airways
1h 20mDUB-LHR
€84
11/2Tue
directBritish Airways
1h 25mLHR-DUB
25/2Tue
directBritish Airways
1h 35mDUB-LHR
€86
22/2Sat
directBritish Airways
1h 30mLHR-DUB
25/2Tue
directBritish Airways
1h 35mDUB-LHR
€87
1/1Wed
directAer Lingus
1h 30mLHR-SNN
21/1Tue
directAer Lingus
1h 30mSNN-LHR
€104
11/1Sat
direct
1h 20mLHR-DUB
18/1Sat
direct
1h 20mDUB-LHR
€108
21/1Tue
direct
1h 20mLHR-DUB
4/2Tue
direct
1h 35mDUB-LHR
€109
31/1Fri
directAer Lingus
1h 25mLHR-SNN
31/1Fri
directAer Lingus
1h 20mSNN-LHR
€112
10/1Fri
1 stopKLM
4h 55mLHR-DUB
12/1Sun
1 stopKLM
4h 50mDUB-LHR
€172
17/1Fri
1 stopKLM
4h 40mLHR-ORK
19/1Sun
1 stopKLM
5h 50mORK-LHR
€176
10/1Fri
1 stopAir France
12h 30mLHR-DUB
12/1Sun
1 stopAir France
23h 55mDUB-LHR
€214

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Recent one-way flight deals

15/4Tue
directBritish Airways
1h 25mLHR-DUB
€56
11/2Tue
directBritish Airways
1h 25mLHR-DUB
€58
28/1Tue
directAer Lingus
1h 25mLHR-ORK
€59
18/1Sat
directAer Lingus
1h 30mLHR-SNN
€62
15/1Wed
1 stopVueling
16h 40mLHR-DUB
€91
20/2Thu
1 stop
15h 50mLHR-ORK
€99
5/1Sun
1 stop
5h 20mLHR-DUB
€102
12/3Wed
1 stopVueling
16h 40mLHR-DUB
€112
28/1Tue
1 stopKLM
4h 15mLHR-ORK
€112
26/3Wed
1 stopKLM
4h 55mLHR-DUB
€113

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Last minute flights from Heathrow to Ireland

Last minute flight, train and bus deals

24/12Tue
directBritish Airways
1h 25mLHR-DUB
24/12Tue
directBritish Airways
1h 35mDUB-LHR
€218
24/12Tue
directBritish Airways
1h 20mLHR-DUB
5/1Sun
directBritish Airways
1h 20mDUB-LHR
€240
23/12Mon
multi-stop
3h 50mLHR-DUB
24/12Tue
direct
1h 35mDUB-LHR
€246
24/12Tue
multi-stop
10h 40mLHR-DUB
31/12Tue
multi-stop
5h 45mDUB-LHR
€248
23/12Mon
directAer Lingus
1h 20mLHR-SNN
24/12Tue
directAer Lingus
1h 30mSNN-LHR
€308
21/12Sat
multi-stopKLM
8h 00mLHR-DUB
22/12Sun
multi-stopKLM
7h 25mDUB-LHR
€312
21/12Sat
multi-stopKLM
8h 00mLHR-DUB
22/12Sun
multi-stopKLM
7h 25mDUB-LHR
€333
20/12Fri
multi-stopSWISS
25h 45mLHR-DUB
23/1Thu
multi-stopSWISS
19h 00mDUB-LHR
€337
24/12Tue
directAer Lingus
1h 20mLHR-DUB
30/12Mon
directAer Lingus
1h 25mDUB-LHR
€360
24/12Tue
multi-stopSWISS
6h 05mLHR-DUB
24/12Tue
multi-stopSWISS
13h 25mDUB-LHR
€434

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

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