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Find cheap flights from London Heathrow Airport to Ireland from €56

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 1/6. 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.
1 adult
0 bags
Wed 29/5
Wed 5/6

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Best Ireland Flight Deals

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

Dublin
Dublindirect€66
Cork
Corkdirect€112
Shannon
Shannondirect€117
Knock
Knockdirect€142
Donegal
Donegal1 stop€205

Good to know

Low season

January

High season

August

Cheapest flight

€56
Best time to beat the crowds (14% less expensive on average)
Most popular time to fly (7% more expensive on average)
Flight from London Heathrow Airport to Cork

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

  • 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 €82 one-way - €115 round-trip
  • Morning departure is around 18% more expensive 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.
7.2
Aer LingusOverall score based on 1346 reviews
7.1Comfort
8.0Crew
7.3Boarding
7.0Entertainment
6.6Food
Airline reviews

I was pleasantly surprised - it has been awhile since I traveled with them - other than being delayed leaving Malaga everything ran very smoothly- yes I would travel with aer Lingus again and yes I would recommended

10.0 ExcellentIna, Apr 2024AGP - ORK
Read more about Aer Lingus reviews

I was pleasantly surprised - it has been awhile since I traveled with them - other than being delayed leaving Malaga everything ran very smoothly- yes I would travel with aer Lingus again and yes I would recommended

I loved how they arrange boarding (starting with people seated in back and moving to the front). Flight crew was very polite and welcoming. Seating was ok, I felt like there was enough leg space however it is noticeable when the passenger in front of you sets their seat back.

Flight staff very friendly and helpful where possible. Late flight and travelling with young child, cabin lights remained on for the duration of the flight which was a little disappointing considering the time of the flight. Overall very happy to travel with Aer Lingus.

Nice to be on a flight that wasn't fully booked so there were only two of us in the three seat row.

The only problem was there are games on the entertaiment system. The guy behind me played poker the entire time and poking the back of my seat. I hope they remove these.

Delayed due to weather... fine. But then the board us. Rows 15 and back had to go down the stairs and back up the back stair entrance to the plane. No assistance offered. Then they inform us that we are delayed for paperwork for an hour. So why did we board? Then, about 45min later they inform us that it'll be another 60-90mins. Really? No wifi, no seat entertainment, no drink or snacks offered. And we were not allowed to deboard.

Great travel. Wonderful experience. Hope to do it again in the near future. God willing

Aer Lingus doesn't have plug ins for devices at each seat. They also did not give me a dairy free meal as requested and confirmed by staff. It was as if I had not requested anything. Otherwise, they were great!

There were a lot of empty rows. As a single passenger I should not have been seated with 2 others. The WiFi didn’t work. The Kosher meal was awful.

Both flights were delayed due to maintenance issues. Because they where late boarding all four of our bags where left behind on our last connecting flight.

The flight was on time and the crew very professional. Everything went as expected and I will use BA again for this trip.

We paid to have overhead carry-on baggage. When we got to the gate we were told that our carry on bags would need to be checked and go below because the flight was full. Notably we were nowhere near the last people to board and about 30 other passengers also had to check their carry-on bags. Other than that the flight was fine.

Very bad plain although I paid A business class ticket I was stuck in a stiff fixed seat without any entertainment or Wi Fi for 5 hours I will never ever book a flight on British airline.

Self check in Kiosk did not recognize that I had prepaid for my luggage. This caused a 40 minute delay even though I had my British Airways email receipt for the prepaid luggage.

Crew were very friendly and helpful. They explained to us in detail the delay in our takeoff due to the storm that rolled in from Belfast and did their best to make up the time. Always great to fly BA!

Staff were very helpful. The free WiFi for messages was also very useful to keep in touch

Crew was more interested on looking at their phones than welcoming passengers during boarding.

The crew was very attentive and kept busy serving a variety of treats!

Terrible. Missed my flight to final destination because of delayed British Airways flight. Had to spend 12 hours in airport and $1500 for new plane tickets

The crew on board were all very pleasant and happy to help. The flight had the old business class seats. The departure board in the business lounge did not update and kept on saying ' gate open' but never said boarding. When I got nervous about the departure time and walked to the gate I was told off rudely for being late.

Book cheap flights from London to Ireland

Recent return flight deals

12/10Sat
directBritish Airways
1h 25mLHR-DUB
16/10Wed
directBritish Airways
1h 30mDUB-LHR
€66
12/10Sat
directBritish Airways
1h 25mLHR-DUB
16/10Wed
directBritish Airways
1h 30mDUB-LHR
€67
9/5Thu
direct
1h 20mLHR-DUB
13/5Mon
direct
1h 30mDUB-LHR
€107
15/6Sat
directAer Lingus
1h 20mLHR-ORK
18/6Tue
directAer Lingus
1h 15mORK-LHR
€112
10/5Fri
direct
1h 20mLHR-DUB
11/5Sat
direct
1h 20mDUB-LHR
€116
14/5Tue
directAer Lingus
1h 25mLHR-SNN
17/5Fri
directAer Lingus
1h 15mSNN-LHR
€117
15/8Thu
1 stopKLM
3h 55mLHR-DUB
20/8Tue
1 stopKLM
4h 50mDUB-LHR
€163
18/5Sat
1 stopKLM
5h 15mLHR-DUB
20/5Mon
1 stopKLM
4h 50mDUB-LHR
€164
1/7Mon
1 stopSWISS
12h 05mLHR-ORK
8/7Mon
1 stopSWISS
20h 55mORK-LHR
€180
14/6Fri
1 stopSWISS
11h 50mLHR-DUB
16/6Sun
1 stopSWISS
22h 40mDUB-LHR
€186

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Recent one-way flight deals

1/6Sat
directAer Lingus
1h 20mLHR-ORK
€56
14/8Wed
directBritish Airways
1h 25mLHR-DUB
€56
21/9Sat
directBritish Airways
1h 25mLHR-DUB
€57
25/6Tue
directAer Lingus
1h 20mLHR-ORK
€59
29/5Wed
1 stopVueling
17h 45mLHR-DUB
€87
14/5Tue
1 stopVueling
12h 25mLHR-DUB
€94
28/5Tue
1 stopKLM
6h 20mLHR-ORK
€101
28/5Tue
1 stopKLM
5h 15mLHR-DUB
€101
14/8Wed
1 stopScandinavian Airlines
5h 10mLHR-DUB
€113
22/5Wed
1 stopScandinavian Airlines
5h 10mLHR-DUB
€114

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Last minute flights from Heathrow to Ireland

Last minute flight, train and bus deals

2/5Thu
directBritish Airways
1h 25mLHR-DUB
6/5Mon
directBritish Airways
1h 30mDUB-LHR
€122
4/5Sat
directBritish Airways
1h 25mLHR-DUB
6/5Mon
directBritish Airways
1h 30mDUB-LHR
€123
30/4Tue
direct
1h 20mLHR-DUB
4/5Sat
direct
1h 20mDUB-LHR
€127
4/5Sat
direct
1h 25mLHR-DUB
4/5Sat
direct
1h 20mDUB-LHR
€130
30/4Tue
directAer Lingus
1h 20mLHR-DUB
7/5Tue
directAer Lingus
1h 25mDUB-LHR
€131
1/5Wed
directAer Lingus
1h 20mLHR-ORK
8/5Wed
directAer Lingus
1h 15mORK-LHR
€143
30/4Tue
multi-stopVueling
12h 25mLHR-DUB
7/5Tue
multi-stopVueling
14h 05mDUB-LHR
€196
2/5Thu
multi-stopAir France
9h 35mLHR-ORK
4/5Sat
multi-stopAir France
4h 50mORK-LHR
€200
2/5Thu
multi-stopAir France
9h 35mLHR-ORK
5/5Sun
multi-stopAir France
4h 50mORK-LHR
€213
30/4Tue
multi-stopVueling
12h 25mLHR-DUB
1/5Wed
multi-stopVueling
18h 55mDUB-LHR
€282

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London Heathrow Airport - Ireland Flights

Departure:

London Heathrow Airport (LHR)United Kingdom

Return flight deals:

Ireland - London Heathrow Airport

Cabin classes:

€2,608
€99