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Cheap flights from London Heathrow Airport to Ireland from £43

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 31/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — DUB
8 Jan — 15 Jan1
1 adult

Cheap flight deals from Heathrow to Ireland

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Ireland (IE0). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 3 January 2025.

Round-trip from

£65

One-way from

£43
British Airways
  • British Airways
  • 1/2-4/2
  • Nonstop
  • 2h 55m total
  • London to Ireland
Search Deals
Aer Lingus
  • Aer Lingus
  • 31/1
  • Nonstop
  • 1h 30m total
  • London to Ireland
Search Deals

Find flight deals from Heathrow to Ireland

Cheapest flights from Heathrow to Ireland
Explore the most affordable flight options available from Heathrow to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 January 2025.

Sat 1/218:25LHR - DUB
Nonstop1h 20mBritish Airways
Tue 4/208:40DUB - LHR
Nonstop1h 35mBritish Airways
Deal found 1/1£65
Sat 8/210:00LHR - SNN
Nonstop1h 30mAer Lingus
Tue 25/217:30SNN - LHR
Nonstop1h 25mAer Lingus
Deal found 2/1£75
Thu 27/211:00LHR - NOC
Nonstop1h 30mAer Lingus
Thu 20/313:00NOC - LHR
Nonstop1h 30mAer Lingus
Deal found 2/1£80
Wed 12/209:45LHR - ORK
Nonstop1h 25mAer Lingus
Wed 12/216:05ORK - LHR
Nonstop1h 15mAer Lingus
Deal found 2/1£82
Sun 9/207:50LHR - DUB
Nonstop1h 20mMultiple Airlines
Wed 12/213:00DUB - LHR
Nonstop1h 25mMultiple Airlines
Deal found 2/1£97
Sat 25/119:35LHR - DUB
Nonstop1h 15mAer Lingus
Sun 26/108:55DUB - LHR
Nonstop1h 25mAer Lingus
Deal found 2/1£108
Tue 4/206:25LHR - ORK
1 stop4h 50mMultiple Airlines
Sat 8/220:10ORK - LHR
Nonstop1h 15mMultiple Airlines
Deal found 2/1£119
Fri 21/321:00LHR - SNN
1 stop23h 00mMultiple Airlines
Mon 24/320:05SNN - LHR
Nonstop1h 20mMultiple Airlines
Deal found 2/1£122
Sun 2/321:00LHR - NOC
1 stop19h 15mMultiple Airlines
Fri 7/313:00NOC - LHR
Nonstop1h 30mMultiple Airlines
Deal found 2/1£130
Thu 13/206:30LHR - CFN
1 stop6h 20mMultiple Airlines
Sun 16/213:15CFN - LHR
1 stop7h 30mMultiple Airlines
Deal found 1/1£134
Thu 23/114:45LHR - DUB
1 stop8h 05mAir France
Mon 27/116:40DUB - LHR
1 stop4h 45mAir France
Deal found 2/1£145
Fri 7/206:30LHR - DUB
1 stop6h 10mKLM
Sun 9/205:55DUB - LHR
1 stop4h 50mKLM
Deal found 2/1£145

Find flights from Heathrow to Ireland within your budget

Customise your flight search to find flights from Heathrow to Ireland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 3 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Sat 1/2

18:25-19:45

Nonstop1h 20m

Dublin

Tue 4/2

08:40-10:15

Nonstop1h 35m

£65

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Sat 8/2

10:00-11:30

Nonstop1h 30m

Shannon

Tue 25/2

17:30-18:55

Nonstop1h 25m

£75

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Thu 27/2

11:00-12:30

Nonstop1h 30m

Knock Intl

Thu 20/3

13:00-14:30

Nonstop1h 30m

£80

LondonCork

LHR - ORK

LHRORK

London Heathrow

Wed 12/2

09:45-11:10

Nonstop1h 25m

Cork

Wed 12/2

17:35-18:50

Nonstop1h 15m

£82

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Sun 9/2

07:50-09:10

Nonstop1h 20m

Dublin

Wed 12/2

13:00-14:25

Nonstop1h 25m

£97

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Sat 25/1

19:35-20:50

Nonstop1h 15m

Dublin

Sun 26/1

16:30-17:50

Nonstop1h 20m

£107

LondonCork

LHR - ORK

LHRORK

London Heathrow

Wed 12/2

07:00-10:45

1 stop3h 45m

Cork

Wed 12/2

16:05-17:20

Nonstop1h 15m

£120

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Fri 21/3

21:00-20:00

1 stop23h 00m

Shannon

Mon 24/3

20:05-21:25

Nonstop1h 20m

£122

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Sun 2/3

21:00-16:15

1 stop19h 15m

Knock Intl

Fri 7/3

13:00-14:30

Nonstop1h 30m

£130

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Thu 13/2

06:30-12:50

1 stop6h 20m

Donegal

Sun 16/2

13:15-20:45

1 stop7h 30m

£134

Flights are sorted by cheapest return flights first.

Deals found on 2/1

Showing 1-10 of 50 results
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Best time to book a flight from Heathrow to Ireland

Have a flexible travel schedule? Discover the best time to fly to Ireland from Heathrow 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 Heathrow to Ireland

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

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

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Ireland (average of £71). Flying from London Heathrow Airport to Ireland in June is currently the most expensive (average of £104). 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 LHR to IE?

Find hourly flight availability from Heathrow to Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 3 January 2025.

When flying from London Heathrow Airport to Ireland, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from London Heathrow Airport to Ireland

Explore weekly flight availability from Heathrow to Ireland. 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 3 January 2025.

The most flights from LHR to IE0 are scheduled on a Friday (68 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (33 on average).

Rainfall in Ireland by month

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

In terms of precipitation, rainfall in Ireland ranges from 49.0 - 79.0 inches per month. October is typically the wettest month, when rainfall can reach 79.0 mm. February is typically the driest time to visit Ireland when rainfall is around 49.0 mm.

Temperature in Ireland by month

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

If weather is an important factor for your trip to Ireland, 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 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

Reviews of airlines servicing Ireland

Get insights into the airlines that provide service to Ireland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ireland. Reviews last updated 3 January 2025.
Read through reviews of airlines operating flights from London to Ireland, such as Air France, British Airways and Aer Lingus. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,338 reviews
Check prices

Food

7.3

Overall

7.8

Comfort

7.7

Boarding

7.8

Entertainment

7.2

Crew

8.4

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

KLM
7.8
Good
1,338 reviews
KLM
7.8
Good
1,338 reviews
Check prices

Food

7.3

Overall

7.8

Comfort

7.7

Boarding

7.8

Entertainment

7.2

Crew

8.4

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Austrian Airlines
7.6
Good
785 reviews
KLM
7.8
Good
1,338 reviews
Check prices

Food

7.3

Overall

7.8

Comfort

7.7

Boarding

7.8

Entertainment

7.2

Crew

8.4

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

SWISS
7.5
Good
1,589 reviews
KLM
7.8
Good
1,338 reviews
Check prices

Food

7.3

Overall

7.8

Comfort

7.7

Boarding

7.8

Entertainment

7.2

Crew

8.4

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Air France
7.4
Good
1,494 reviews
KLM
7.8
Good
1,338 reviews
Check prices

Food

7.3

Overall

7.8

Comfort

7.7

Boarding

7.8

Entertainment

7.2

Crew

8.4

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

United Airlines
7.4
Good
8,966 reviews
KLM
7.8
Good
1,338 reviews
Check prices

Food

7.3

Overall

7.8

Comfort

7.7

Boarding

7.8

Entertainment

7.2

Crew

8.4

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Ireland. 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 London Heathrow Airport to Ireland one-way?

    One-way options have recently been found by users for as low as £43 on Aer Lingus. Other airlines that offer cheap prices include British Airways from £47 and Vueling from £69 one-way.

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

    The most popular flight routes from London Heathrow Airport to Ireland are London Heathrow - Dublin, London Heathrow - Cork and London Heathrow - Shannon.

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

    No one likes to see their flight delayed. When booking a flight from London Heathrow Airport to Ireland consider choosing Qatar Airways (68%), Aer Lingus (67%) or British Airways (67%) as they are the most reliable in getting you off to your destination on time.

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

    Looking for the cheapest flight from London Heathrow Airport to Ireland? While on average our users pay £803, our data indicates the cheapest price to be £84. The most popular route (London Heathrow - Dublin), is priced around £68.

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

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

  • How can I find direct flights from Heathrow to Ireland?

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

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

    Yes. Cheapflights offers flight deals from Heathrow to Ireland 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 London Heathrow Airport to Ireland?

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Ireland (average of £71). Flying from London Heathrow Airport to Ireland in June is currently the most expensive (average of £104). 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

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Alternative routes for Heathrow to Ireland

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Heathrow to Ireland

Discover the top 3 airlines that operate flights from Heathrow to Ireland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 3 January 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£28Average£61FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
British AirwaysCheapest£57Average£180FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£93Average£165FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Heathrow to Ireland. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Heathrow to Ireland.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Heathrow to Ireland, users can toggle the no change fees filter when performing a flight search.

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

Yes! Start tracking prices for Heathrow to Ireland flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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