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Cheap flights from London Heathrow Airport to Dublin from £44

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 21/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — DUB
1 Apr — 8 Apr1
1 adult

Cheapflights Tip: The best prices from London Heathrow to Dublin are usually found in January or September, booked 66 days in advance, depart on a Tuesday or Friday and return on a Friday

Cheap flight deals from Heathrow to Dublin

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Dublin (DUB). 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 27 March 2025.

Round-trip from

£66

One-way from

£44

Popular in

December

Cheapest in

January

Average price

£128

Good round-trip deal

£181 or less

Good one-way deal

£377 or less
British Airways
  • British Airways
  • 7/5-8/5
  • Nonstop
  • 2h 45m total
  • London to Dublin
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British Airways
  • British Airways
  • 21/6
  • Nonstop
  • 1h 25m total
  • London to Dublin
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 1% potential price decrease (£2 potential savings vs. average return price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from London Heathrow to Dublin.
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Price to beat on a one-way flight from London Heathrow to Dublin.
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Find flight deals from Heathrow to Dublin

Cheapest flights from Heathrow to Dublin
Explore the most affordable flight options available from Heathrow to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 March 2025.

Wed 7/518:05LHR - DUB
Nonstop1h 25mBritish Airways
Thu 8/520:15DUB - LHR
Nonstop1h 20mBritish Airways
Deal found 26/3£66
Wed 7/520:50LHR - DUB
1 stop12h 20mMultiple Airlines
Thu 8/520:15DUB - LHR
Nonstop1h 20mMultiple Airlines
Deal found 27/3£96
Thu 15/521:10LHR - DUB
Nonstop1h 20mAer Lingus
Mon 19/519:00DUB - LHR
Nonstop1h 20mAer Lingus
Deal found 27/3£104
Wed 7/506:40LHR - DUB
1 stop11h 35mScandinavian Airlines
Fri 9/512:20DUB - LHR
1 stop6h 30mScandinavian Airlines
Deal found 26/3£142
Fri 9/517:10LHR - DUB
1 stop5h 15mKLM
Sun 11/505:55DUB - LHR
1 stop4h 50mKLM
Deal found 26/3£157
Tue 1/406:15LHR - DUB
1 stop8h 45mAir France
Tue 8/406:00DUB - LHR
1 stop7h 45mAir France
Deal found 27/3£174

Cheapflights Fare Finder

Customise your flight search to find flights from Heathrow to Dublin 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 27 March 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Dublin that are best for you.

Fly from

Heathrow

Fly to

Dublin

Route

Depart

Return

Price

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Wed 7/5

18:05-19:30

Nonstop1h 25m

Dublin

Thu 8/5

20:15-21:35

Nonstop1h 20m

£66

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Wed 7/5

20:50-09:10

1 stop12h 20m

Dublin

Thu 8/5

20:15-21:35

Nonstop1h 20m

£96

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Thu 15/5

21:10-22:30

Nonstop1h 20m

Dublin

Mon 19/5

19:00-20:20

Nonstop1h 20m

£104

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Wed 7/5

06:40-18:15

1 stop11h 35m

Dublin

Fri 9/5

12:20-18:50

1 stop6h 30m

£142

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Thu 24/4

15:05-07:25

1 stop16h 20m

Dublin

Thu 1/5

08:20-14:15

1 stop5h 55m

£148

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Fri 9/5

17:10-22:25

1 stop5h 15m

Dublin

Sun 11/5

05:55-10:45

1 stop4h 50m

£157

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Sat 21/6

06:15-07:40

Nonstop1h 25m

£44

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Wed 7/5

20:50-09:10

1 stop12h 20m

£46

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Mon 28/4

20:10-21:30

Nonstop1h 20m

£55

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Wed 6/8

07:35-22:20

1 stop14h 45m

£80

Flights are sorted by cheapest return flights first.

Deals found on 26/3

Showing 1-10 of 16 results
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Best time to book a flight from Heathrow to Dublin

Have a flexible travel schedule? Discover the best time to fly to Dublin 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.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Dublin

How far ahead should I book a flight from London Heathrow Airport to Dublin?

Use this chart to determine the optimal time to book a return flight from Heathrow to Dublin. Price data was last updated on 21 March 2025.

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Dublin, you should look to book at least 66 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Dublin (average of £71). Flying from London Heathrow Airport to Dublin in June is currently the most expensive (average of £100). 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 DUB?

Find hourly flight availability from Heathrow to Dublin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 27 March 2025.

It’s optimal to fly from London Heathrow Airport to Dublin in the evening. By choosing this option you can save up to 80% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from London Heathrow Airport to Dublin?

Use this chart to determine the cheapest time to fly return from Heathrow to Dublin. Price data was last updated on 23 March 2025.

Travellers seeking maximum savings on their London Heathrow Airport to Dublin flight should consider departing on Tuesday evenings when fares are most often at their lowest. Monday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Dublin by month

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

In terms of precipitation, rainfall in Dublin 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 Dublin when rainfall is around 49.0 mm.

Temperature in Dublin by month

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

If weather is an important factor for your trip to Dublin, 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 Dublin

Get insights into the airlines that provide service to Dublin. 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 Dublin. Reviews last updated 27 March 2025.
Read through reviews of airlines operating flights from London to Dublin, such as Aegean Airlines, KLM and Austrian Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aegean Airlines
8.1
Very Good
729 reviews
Check prices

Entertainment

6.9

Crew

8.6

Comfort

7.8

Boarding

7.8

Overall

8.1

Food

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Aegean Airlines
8.1
Very Good
729 reviews
Aegean Airlines
8.1
Very Good
729 reviews
Check prices

Entertainment

6.9

Crew

8.6

Comfort

7.8

Boarding

7.8

Overall

8.1

Food

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
KLM
7.8
Good
1,321 reviews
Aegean Airlines
8.1
Very Good
729 reviews
Check prices

Entertainment

6.9

Crew

8.6

Comfort

7.8

Boarding

7.8

Overall

8.1

Food

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Austrian Airlines
7.5
Good
769 reviews
Aegean Airlines
8.1
Very Good
729 reviews
Check prices

Entertainment

6.9

Crew

8.6

Comfort

7.8

Boarding

7.8

Overall

8.1

Food

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
SWISS
7.5
Good
1,570 reviews
Aegean Airlines
8.1
Very Good
729 reviews
Check prices

Entertainment

6.9

Crew

8.6

Comfort

7.8

Boarding

7.8

Overall

8.1

Food

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Scandinavian Airlines
7.3
Good
1,325 reviews
Aegean Airlines
8.1
Very Good
729 reviews
Check prices

Entertainment

6.9

Crew

8.6

Comfort

7.8

Boarding

7.8

Overall

8.1

Food

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Dublin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Dublin from London Heathrow?

    If you book a flight to Dublin from London Heathrow, you will be flying to Dublin, which is the city’s only airport. Dublin (DUB) is located 5.7 mi from the center of Dublin. There are 26 flights from London Heathrow to Dublin per day from 3 different airlines.

  • What are the cheapest airlines flying from London Heathrow Airport to Dublin round-trip?

    Our cheapest airline available from London Heathrow Airport to Dublin is British Airways. Our recent data shows that you can find tickets from as low as £66 on this airline. Additional options worth looking into are Aer Lingus and Scandinavian Airlines, starting at £104 and £142 round-trip. British Airways is currently priced 44% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from London Heathrow Airport to Dublin one-way?

    One-way options have recently been found by users for as low as £44 on British Airways. Other airlines that offer cheap prices include Vueling from £46 and Aer Lingus from £55 one-way.

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

    Before booking your flight to Dublin from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: Kenya Airways (94%), Japan Airlines (90%), LATAM Airlines( 89%).

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

    Looking at all options, your cheapest flight can be booked for £79. While the most popular route (London Heathrow - Dublin) can be booked for £56 on average our data indicates £1,209 when flying from London Heathrow Airport to Dublin.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow to Dublin 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 Dublin?

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Dublin (average of £71). Flying from London Heathrow Airport to Dublin in June is currently the most expensive (average of £100). 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

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Wicklow
Bray
Drogheda
Tullamore
Malahide
Portmarnock
Athlone
Carlingford
Cavan
Kildare
Mullingar
Enniscorthy
Dundalk
Arklow
Maynooth
Castleknock
Swords
Naas

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from Heathrow to Dublin on these airlines

Choose from the following airlines for your flight from Heathrow to Dublin. Flights are based on user searches made on Cheapflights and were last updated on 27 March 2025.
British Airways flights from London Heathrow to Dublin
Aer Lingus flights from London Heathrow to Dublin
Ryanair flights from London Heathrow to Dublin

Top 3 airlines flying from Heathrow to Dublin

Discover the top 3 airlines that operate flights from Heathrow to Dublin. 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 27 March 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£27Average£49FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
British AirwaysCheapest£64Average£110FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£99Average£138FlexibilityNo 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 Dublin?

Cheapflights helps you search for flights from Heathrow to Dublin via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Heathrow to Dublin for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

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

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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