Find flights
Deals
When to book
FAQs & Tips
Airlines

Find cheap flights from London Heathrow Airport to Ireland from €50

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 19/9. 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
Sat 25/5
Sat 1/6

Search hundreds of travel sites at once for deals on flights to Ireland

In the last 7 days, travellers have searched 45,119,101 times on KAYAK, and here's why:

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Best Ireland Flight Deals

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

Dublin
Dublindirect€65
Cork
Corkdirect€111
Shannon
Shannondirect€127
Knock
Knockdirect€113
Donegal
Donegal1 stop€222

Good to know

Low season

January

High season

August

Cheapest flight

€50
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 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

  • 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 €85 one-way - €110 round-trip
  • Morning departure is around 40% 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 1349 reviews
7.1comfort
7.3boarding
6.6food
7.0entertainment
8.0crew
Airline reviews

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.

10.0 ExcellentAnthony, Apr 2024ACE - DUB
Read more about Aer Lingus reviews

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.

Aer Lingus interior is not the cleanest. I've seen crumbs on the seat and wrappers on the floor when I boarded

Flightl was good and on time. Only problem was the quality of the air in the cabin,didn’t appear to be clearing the air circulation.

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.

Offered vegetable curry when it was actually tofu which I don’t care for.

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
€65
24/9Tue
directBritish Airways
1h 25mLHR-DUB
28/9Sat
directBritish Airways
1h 20mDUB-LHR
€66
8/5Wed
direct
1h 20mLHR-DUB
14/5Tue
direct
1h 20mDUB-LHR
€97
7/5Tue
direct
1h 20mLHR-DUB
14/5Tue
direct
1h 20mDUB-LHR
€103
8/6Sat
directAer Lingus
1h 20mLHR-ORK
12/6Wed
directAer Lingus
1h 15mORK-LHR
€111
15/5Wed
directAer Lingus
1h 30mLHR-NOC
22/5Wed
directAer Lingus
1h 25mNOC-LHR
€113
7/6Fri
1 stopSWISS
11h 50mLHR-DUB
12/6Wed
1 stopSWISS
13h 10mDUB-LHR
€157
18/10Fri
1 stopKLM
3h 55mLHR-DUB
20/10Sun
1 stopKLM
4h 50mDUB-LHR
€163
21/5Tue
1 stopKLM
6h 05mLHR-DUB
29/5Wed
1 stopKLM
4h 50mDUB-LHR
€164
6/6Thu
1 stopSWISS
9h 20mLHR-DUB
8/6Sat
1 stopSWISS
13h 10mDUB-LHR
€184

Search by stops

Search by airline

Search by price

Recent one-way flight deals

19/9Thu
directBritish Airways
1h 25mLHR-DUB
€50
14/5Tue
directBritish Airways
1h 25mLHR-DUB
€51
12/6Wed
directAer Lingus
1h 20mLHR-ORK
€55
4/6Tue
directAer Lingus
1h 20mLHR-ORK
€56
30/4Tue
1 stopVueling
12h 25mLHR-DUB
€73
30/4Tue
1 stopVueling
12h 25mLHR-DUB
€77
28/5Tue
1 stop
12h 20mLHR-DUB
€86
28/5Tue
1 stop
12h 20mLHR-DUB
€87
16/9Mon
1 stopKLM
4h 15mLHR-ORK
€99
29/5Wed
1 stopKLM
3h 55mLHR-DUB
€99

Search by stops

Search by airline

Search by price

Last minute flights from Heathrow to Ireland

Last minute flight, train and bus deals

26/4Fri
directBritish Airways
1h 25mLHR-DUB
30/4Tue
directBritish Airways
1h 30mDUB-LHR
€87
27/4Sat
directBritish Airways
1h 25mLHR-DUB
9/5Thu
directBritish Airways
1h 20mDUB-LHR
€93
27/4Sat
directBritish Airways
1h 25mLHR-DUB
27/4Sat
directBritish Airways
1h 20mDUB-LHR
€93
27/4Sat
direct
1h 10mLHR-DUB
11/5Sat
direct
1h 20mDUB-LHR
€107
28/4Sun
directAer Lingus
1h 20mLHR-DUB
30/5Thu
directAer Lingus
1h 20mDUB-LHR
€122
29/4Mon
direct
1h 20mLHR-DUB
1/5Wed
direct
1h 30mDUB-LHR
€131
27/4Sat
directAer Lingus
1h 20mLHR-DUB
29/4Mon
directAer Lingus
1h 25mDUB-LHR
€145
29/4Mon
multi-stopScandinavian Airlines
5h 10mLHR-DUB
30/4Tue
multi-stopScandinavian Airlines
6h 00mDUB-LHR
€241
27/4Sat
multi-stopVueling
12h 25mLHR-DUB
4/5Sat
multi-stopVueling
11h 50mDUB-LHR
€246
29/4Mon
multi-stopScandinavian Airlines
5h 10mLHR-DUB
30/4Tue
multi-stopScandinavian Airlines
6h 50mDUB-LHR
€253

Search by stops

Search by airline

Search by price

London Heathrow Airport - Ireland Flights

Departure:

London Heathrow Airport (LHR)United Kingdom

Return flight deals:

Ireland - London Heathrow Airport

Cabin classes:

€2,613
€99