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Cheap flights from London Heathrow Airport to Dublin from €51

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Dublin departing on 30/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from London Heathrow Airport to Dublin (LHR-DUB)

Cheap return flights

British Airways Logo
12:50 - 14:20LHR-DUB
1h 30mdirect
British Airways Logo
17:55 - 19:15DUB-LHR
1h 20mdirect
€80British Airways
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Sat, 1 Nov - Mon, 3 Nov
British Airways Logo
12:50 - 14:20LHR-DUB
1h 30mdirect
British Airways Logo
17:55 - 19:15DUB-LHR
1h 20mdirect
€81British Airways
Find Deal
Sat, 1 Nov - Mon, 3 Nov
British Airways Logo
15:30 - 17:00LHR-DUB
1h 30mdirect
British Airways Logo
16:00 - 17:25DUB-LHR
1h 25mdirect
€82British Airways
Find Deal
Sat, 22 Nov - Fri, 28 Nov
British Airways Logo
16:30 - 17:55LHR-DUB
1h 25mdirect
British Airways Logo
08:35 - 10:10DUB-LHR
1h 35mdirect
€83British Airways
Find Deal
Wed, 8 Oct - Tue, 21 Oct
British Airways Logo
08:25 - 09:50LHR-DUB
1h 25mdirect
British Airways Logo
17:25 - 18:45DUB-LHR
1h 20mdirect
€83British Airways
Find Deal
Fri, 2 Jan - Tue, 6 Jan
Aer Lingus Logo
15:10 - 16:35LHR-DUB
1h 25mdirect
Aer Lingus Logo
07:30 - 09:05DUB-LHR
1h 35mdirect
€92Aer Lingus
Find Deal
Wed, 8 Oct - Wed, 22 Oct
Aer Lingus Logo
15:10 - 16:35LHR-DUB
1h 25mdirect
Aer Lingus Logo
19:00 - 20:20DUB-LHR
1h 20mdirect
€98Aer Lingus
Find Deal
Wed, 1 Oct - Wed, 8 Oct
Aer Lingus Logo
15:10 - 16:35LHR-DUB
1h 25mdirect
Aer Lingus Logo
06:30 - 08:00DUB-LHR
1h 30mdirect
€100Aer Lingus
Find Deal
Thu, 9 Oct - Sun, 12 Oct
Aer Lingus Logo
21:10 - 22:30LHR-DUB
1h 20mdirect
Aer Lingus Logo
18:30 - 19:50DUB-LHR
1h 20mdirect
€101Aer Lingus
Find Deal
Fri, 24 Oct - Fri, 31 Oct
Logo
06:20 - 07:45LHR-DUB
1h 25mdirect
Logo
06:30 - 08:00DUB-LHR
1h 30mdirect
€106
Find Deal
Fri, 10 Oct - Sun, 12 Oct

Aer Lingus flights from London Heathrow Airport to Dublin

Our best Aer Lingus deals on London Heathrow Airport to Dublin flight tickets
Aer Lingus
8 Oct
LHR15:10London Heathrow
1h 25m
DUB16:35Dublin
22 Oct
DUB07:30Dublin
1h 35m
LHR09:05London Heathrow
€92
Find similar
Aer Lingus
1 Oct
LHR15:10London Heathrow
1h 25m
DUB16:35Dublin
8 Oct
DUB19:00Dublin
1h 20m
LHR20:20London Heathrow
€98
Find similar
Aer Lingus
9 Oct
LHR15:10London Heathrow
1h 25m
DUB16:35Dublin
12 Oct
DUB06:30Dublin
1h 30m
LHR08:00London Heathrow
€100
Find similar

British Airways flights from London Heathrow Airport to Dublin

Our best British Airways deals on London Heathrow Airport to Dublin flight tickets
British Airways
1 Nov
LHR12:50London Heathrow
1h 30m
DUB14:20Dublin
3 Nov
DUB17:55Dublin
1h 20m
LHR19:15London Heathrow
€80
Find similar
British Airways
1 Nov
LHR12:50London Heathrow
1h 30m
DUB14:20Dublin
3 Nov
DUB17:55Dublin
1h 20m
LHR19:15London Heathrow
€81
Find similar
British Airways
22 Nov
LHR15:30London Heathrow
1h 30m
DUB17:00Dublin
28 Nov
DUB16:00Dublin
1h 25m
LHR17:25London Heathrow
€82
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport 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, momondo users made 13,528 searches. Data last updated 10 September 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Dublin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Sat 1/11

12:50-14:20

Nonstop1h 30m

Dublin

Mon 3/11

17:55-19:15

Nonstop1h 20m

€80

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Sat 1/11

12:50-14:20

Nonstop1h 30m

Dublin

Mon 3/11

17:55-19:15

Nonstop1h 20m

€81

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Sat 22/11

15:30-17:00

Nonstop1h 30m

Dublin

Fri 28/11

16:00-17:25

Nonstop1h 25m

€82

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Wed 8/10

16:30-17:55

Nonstop1h 25m

Dublin

Tue 21/10

08:35-10:10

Nonstop1h 35m

€83

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Fri 2/1

08:25-09:50

Nonstop1h 25m

Dublin

Tue 6/1

17:25-18:45

Nonstop1h 20m

€83

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Wed 8/10

15:10-16:35

Nonstop1h 25m

Dublin

Wed 22/10

07:30-09:05

Nonstop1h 35m

€92

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Wed 1/10

15:10-16:35

Nonstop1h 25m

Dublin

Wed 8/10

19:00-20:20

Nonstop1h 20m

€98

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Thu 9/10

15:10-16:35

Nonstop1h 25m

Dublin

Sun 12/10

06:30-08:00

Nonstop1h 30m

€100

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Fri 24/10

21:10-22:30

Nonstop1h 20m

Dublin

Fri 31/10

18:30-19:50

Nonstop1h 20m

€101

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Fri 10/10

06:20-07:45

Nonstop1h 25m

Dublin

Sun 12/10

06:30-08:00

Nonstop1h 30m

€106

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Dublin from

How to get the cheapest flight ticket from London Heathrow Airport to Dublin

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Dublin?

If you aren’t able to travel during the month of January, then book flights to Dublin from London Heathrow Airport during February instead. Flights to Dublin in February, while not as cheap as those in January, still average around €126.

What is the cheapest day to depart on your flight to Dublin?

Our data shows that Tuesday is the least expensive day to fly to Dublin. Tickets to fly out on this day can be as low as €143. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around €237. These prices are subject to change though, so be sure to set up a Price Alert for flights to Dublin.

What is the cheapest time of day to depart on your flight to Dublin?

Our data shows that the cheapest London Heathrow Airport to Dublin flights are usually those with departure times in the afternoon. Our users have found flights to Dublin in the afternoon for as low as €155. If you have a flexible travel schedule, then try to avoid flying at midday when prices are €285 on average. Flights to Dublin from London Heathrow Airport at midday are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest London Heathrow to Dublin flight route?

Fly from London Heathrow to Dublin for the best London Heathrow - Dublin flight prices

How far in advance should I book a flight to Dublin?

You are more likely to see cheaper flights to Dublin from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around €142 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dublin from London Heathrow Airport for as low as €104 on momondo.

What cabin class options are available on London Heathrow to Dublin flights?

There are 2 cabin classes available to choose from on London Heathrow to Dublin flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have London Heathrow Airport to Dublin flight prices changed over time?

As of September 2025, prices for London Heathrow Airport to Dublin flights are approximately 33% more expensive when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to Dublin

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Dublin according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London Heathrow Airport to Dublin (LHR to DUB) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Dublin

Best price found

€79

Fastest flight time

1h 10m

Direct flights

Every day

Airports in Dublin

1 airport
The best one-way flight to Dublin from London Heathrow Airport in the past 72 hours is €79. The best return flight deal from London Heathrow Airport to Dublin found on momondo in the last 72 hours is €180.
The fastest flight from London Heathrow Airport to Dublin takes 1h 10m
Direct flights go from London Heathrow Airport to Dublin every day.
There is 1 airport near Dublin: Dublin (DUB)
Search flight deals

  • How far is London Heathrow to Dublin by plane?

    London Heathrow and Dublin are 445.0 km apart from one another. 1h 20m is a normal flight duration for this route.

  • When did momondo last update prices for flights from London Heathrow Airport to Dublin Airport?

    Prices for flights from London Heathrow Airport to Dublin Airport are updated daily.

  • How many operators does momondo search for flights from London Heathrow Airport to Dublin Airport?

  • How old do you have to be to fly from London Heathrow Airport to Dublin Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Dublin Airport.

  • What documentation or ID do you need to fly to Dublin Airport?

    The travel and health documents required for your trip to Dublin Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Dublin Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from London Heathrow Airport to Dublin?

  • What is the most popular airline from London Heathrow Airport to Dublin?

Best airlines flying from London Heathrow Airport to Dublin

Compare and see reviews for airlines that fly from London Heathrow Airport to Dublin with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom €92Free CancellationRating
6.6
7,361 reviews
Search British Airways flights
Aer LingusPriceFrom €143Free CancellationRating
7.2
1,271 reviews
Search Aer Lingus flights

  • Aer Lingus Flights From London Heathrow Airport to Dublin

    The lowest priced Aer Lingus flight from London Heathrow Airport to Dublin from the last 72 hours was €168. Generally, Aer Lingus has 96 flights on this route every week with an average price of €179. Aer Lingus is rated 7.2/10 by our users.

  • British Airways Flights From London Heathrow Airport to Dublin

    British Airways is also a popular choice for this route. British Airways flight deals for London Heathrow Airport to Dublin start from as low as €108 round-trip, depending on your selected dates, with average British Airways deals seen on momondo around €155. British Airways operates 94 flights to Dublin from London Heathrow Airport in an average week. Users have rated it 6.6/10 across 7,361 reviews.

Travelling to a place near Dublin?

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

Why use momondo?

Why should I use momondo to find a flight deal from London to Dublin?

Finding the right flight to Dublin from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Dublin quick and easy, saving you time and money.

Can I find flights from London to Dublin with flexible booking policies on momondo?

Yes. All flights to Dublin from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from London to Dublin?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Dublin.

I’m not ready to book a flight from London to Dublin right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Dublin from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Dublin trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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