What is the cheapest airline that flies from London Heathrow to Dublin?

British Airways is the most popular carrier operating from London Heathrow to Dublin

How many flights depart from London Heathrow Airport to Dublin on average per week?

As of January 2026, 305 flights take off from London Heathrow Airport and land in Dublin each week. The most common flight departure day for this route is Thu, with 22% of weekly flights taking off on this day.

How often are flights from London to Dublin delayed?

Historically, on average around 15% of flights between London and Dublin have experienced a delay on any given week. The average delay length over the past 12 months has been 105 minutes.

How many flights depart from London Heathrow Airport to Dublin on average per day?

As of January 2026, 43 flights take off from London Heathrow Airport and land in Dublin each day. The most common flight departure time for this route is 08:00, with 43% of daily flights taking off at midday.

Which airlines fly to Dublin?

British Airways, Aer Lingus and Ryanair are the top three most popular airlines that fly to Dublin from London Heathrow Airport according to our data. British Airways is the first choice among our users, with 56% of people opting to fly with this airline when travelling to Dublin. Keep in mind that there are 3 different airlines that fly to Dublin on a routine basis, so you have a few additional options to choose from.

What is the most punctual flight time for London to Dublin flights?

Generally, flights departing at night tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Which airline has the best punctuality record on London to Dublin flights?

According to our data, Aer Lingus have had the fewest delays on this route over the last 12 months, with about 15% of their flights experiencing any sort of delay.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

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 refresh daily.

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

The number of operators available for flights from London Heathrow Airport to Dublin Airport is 3 as of January 2026.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. 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 necessary travel and health documents for your Dublin Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

£40 Cheap Flights from London Heathrow Airport to Dublin in 2026

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06:30 - 07:55

LHR

DUB

1h 25mdirect

10:30 - 12:05

DUB

LHR

1h 35mdirect

£60British Airways

mar., 10 mars - jeu., 12 mars

18:05 - 19:30

LHR

DUB

1h 25mdirect

10:30 - 12:00

DUB

LHR

1h 30mdirect

£65British Airways

mer., 15 avr. - mer., 22 avr.

06:30 - 07:55

LHR

DUB

1h 25mdirect

20:40 - 22:00

DUB

LHR

1h 20mdirect

£70British Airways

jeu., 26 févr. - lun., 2 mars

18:15 - 19:40

LHR

DUB

1h 25mdirect

20:35 - 21:55

DUB

LHR

1h 20mdirect

£71British Airways

lun., 2 mars - ven., 6 mars

12:50 - 14:20

LHR

DUB

1h 30mdirect

20:40 - 22:00

DUB

LHR

1h 20mdirect

£72British Airways

sam., 28 févr. - lun., 2 mars

06:30 - 07:55

LHR

DUB

1h 25mdirect

20:40 - 22:00

DUB

LHR

1h 20mdirect

£72British Airways

jeu., 26 févr. - lun., 2 mars

06:30 - 07:55

LHR

DUB

1h 25mdirect

20:40 - 22:00

DUB

LHR

1h 20mdirect

£74British Airways

sam., 21 févr. - sam., 28 févr.

18:20 - 19:45

LHR

DUB

1h 25mdirect

08:50 - 10:25

DUB

LHR

1h 35mdirect

£75British Airways

dim., 8 mars - mer., 11 mars

08:25 - 09:50

LHR

DUB

1h 25mdirect

18:00 - 19:20

DUB

LHR

1h 20mdirect

£75British Airways

dim., 1 mars - mer., 4 mars

06:30 - 07:55

LHR

DUB

1h 25mdirect

20:40 - 22:00

DUB

LHR

1h 20mdirect

£76British Airways

jeu., 19 mars - sam., 21 mars

British Airways flights from London Heathrow Airport to Dublin

Our best British Airways deals on London Heathrow Airport to Dublin flight tickets

British Airways

28 Feb

LHR15:30London Heathrow

1h 30m

DUB17:00Dublin

2 Mar

DUB20:40Dublin

1h 20m

LHR22:00London Heathrow

£70

British Airways

2 Mar

LHR18:15London Heathrow

1h 25m

DUB19:40Dublin

6 Mar

DUB20:35Dublin

1h 20m

LHR21:55London Heathrow

£71

British Airways

28 Feb

LHR12:50London Heathrow

1h 30m

DUB14:20Dublin

2 Mar

DUB20:40Dublin

1h 20m

LHR22:00London Heathrow

£72

Aer Lingus flights from London Heathrow Airport to Dublin

Our best Aer Lingus deals on London Heathrow Airport to Dublin flight tickets

Aer Lingus

24 Jan

LHR19:35London Heathrow

1h 15m

DUB20:50Dublin

25 Jan

DUB16:30Dublin

1h 20m

LHR17:50London Heathrow

£100

Aer Lingus

22 Jan

LHR07:50London Heathrow

1h 20m

DUB09:10Dublin

25 Jan

DUB16:30Dublin

1h 20m

LHR17:50London Heathrow

£101

Aer Lingus

29 Jan

LHR08:50London Heathrow

1h 25m

DUB10:15Dublin

3 Feb

DUB10:00Dublin

1h 25m

LHR11:25London Heathrow

£101

momondo Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Dublin that are best for you.

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Fly to

Route

Depart

Return

Price

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

mar. 10/3

06:30-07:55

Nonstop1h 25m

Dublin

jeu. 12/3

10:30-12:05

Nonstop1h 35m

£60

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

mer. 15/4

18:05-19:30

Nonstop1h 25m

Dublin

mer. 22/4

10:30-12:00

Nonstop1h 30m

£65

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

jeu. 26/2

06:30-07:55

Nonstop1h 25m

Dublin

lun. 2/3

20:40-22:00

Nonstop1h 20m

£70

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

lun. 2/3

18:15-19:40

Nonstop1h 25m

Dublin

ven. 6/3

20:35-21:55

Nonstop1h 20m

£71

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

sam. 28/2

12:50-14:20

Nonstop1h 30m

Dublin

lun. 2/3

20:40-22:00

Nonstop1h 20m

£72

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

jeu. 26/2

06:30-07:55

Nonstop1h 25m

Dublin

lun. 2/3

20:40-22:00

Nonstop1h 20m

£72

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

sam. 21/2

06:30-07:55

Nonstop1h 25m

Dublin

sam. 28/2

20:40-22:00

Nonstop1h 20m

£74

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

dim. 8/3

18:20-19:45

Nonstop1h 25m

Dublin

mer. 11/3

08:50-10:25

Nonstop1h 35m

£75

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

dim. 1/3

08:25-09:50

Nonstop1h 25m

Dublin

mer. 4/3

18:00-19:20

Nonstop1h 20m

£75

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

jeu. 19/3

06:30-07:55

Nonstop1h 25m

Dublin

sam. 21/3

20:40-22:00

Nonstop1h 20m

£76

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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

Prices

Airlines

Delays

Other information

What is the cheapest month to fly to Dublin?

In general, January is the cheapest month to fly from London Heathrow Airport to Dublin. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £106. If you aren’t able to travel to Dublin during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of £112.

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

On average, the least expensive day to fly to Dublin from London Heathrow Airport is on a Saturday. momondo users have found tickets for Saturday departures for as low as £100. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around £137. 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?

Flying to Dublin from London Heathrow Airport in the evening is the least expensive time of day to depart. momondo users have found prices as low as £82 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are £121 on average. Flights to Dublin from London Heathrow Airport in the morning 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 £127 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 £95 on momondo.

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

There are 3 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 January 2026, prices for London Heathrow Airport to Dublin flights are approximately 7% 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	£136
Fastest flight time	1h 20m
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 £136. The best return flight deal from London Heathrow Airport to Dublin found on momondo in the last 72 hours is £216.

The fastest flight from London Heathrow Airport to Dublin takes 1h 20m

Direct flights go from London Heathrow Airport to Dublin every day.

There is 1 airport in Dublin. From London Heathrow Airport there are direct flights to Dublin (DUB).

Search flight deals

How far is London Heathrow to Dublin by plane?
London Heathrow and Dublin are 276.5 mi 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 refresh daily.
How many operators does momondo search for flights from London Heathrow Airport to Dublin Airport?
The number of operators available for flights from London Heathrow Airport to Dublin Airport is 3 as of January 2026.
How old do you have to be to fly from London Heathrow Airport to Dublin Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. 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 necessary travel and health documents for your Dublin Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from London Heathrow Airport to Dublin?
Based on momondo bookings for flights between London Heathrow Airport and Dublin, the leading plane model is Boeing 787-9 Dreamliner, making up 13.84% of the total bookings. Other popular models include Boeing 777 with 10.51%, Airbus A350-1000 with 10.14%, and Airbus A320neo with 7.45%.
What is the most popular airline from London Heathrow Airport to Dublin?
Based on momondo bookings for this flight route, the most popular airline on flight routes from London Heathrow Airport to Dublin is British Airways (56% of total bookings). The next most popular airlines are Aer Lingus (42%) and Ryanair (2%).

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
Ryanair	PriceFrom £30	Free Cancellation	Rating 6.9 5,243 reviews	Search Ryanair flights
British Airways	PriceFrom £69	Free Cancellation	Rating 6.7 7,677 reviews	Search British Airways flights
Aer Lingus	PriceFrom £96	Free Cancellation	Rating 7.2 1,435 reviews	Search Aer Lingus flights

Aer Lingus Flights From London Heathrow Airport to Dublin
Aer Lingus flies from London Heathrow Airport to Dublin around 96 times per week, with 1,435 momondo users rating the airline 7.2/10. The cheapest Aer Lingus deal from London Heathrow Airport to Dublin in the last 72 hours was £96 (round-trip), much lower than the average airfare cost of £147 for Aer Lingus flights on this route.
British Airways Flights From London Heathrow Airport to Dublin
£69 is the best British Airways flight deal from London Heathrow Airport to Dublin found on momondo over the last 72 hours. The average British Airways ticket price found was closer to £111, however, with flight time and availability significantly affecting the price. British Airways (6.7/10 from 7,677 user reviews) flies into Dublin from London Heathrow Airport 83 times in an average week so prices can vary.

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Dundalk

Athlone

Bray

Malahide

Carlingford

Kildare

Mullingar

Drogheda

Enniscorthy

Wicklow

Arklow

Gorey

Naas

Leixlip

Maynooth

Tullamore

Portmarnock

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Dublin from London.

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

Yes. momondo enables you to select and highlight flights to Dublin from London with this policy.

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

momondo provides multiple filters to help you find the best flight to Dublin from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from London to Dublin now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Dublin and let you know when they 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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Cheap flights from London Heathrow Airport to Dublin from £40

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 7/2. 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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British Airways flights from London Heathrow Airport to Dublin

Our best British Airways deals on London Heathrow Airport to Dublin flight tickets

Aer Lingus flights from London Heathrow Airport to Dublin

Our best Aer Lingus deals on London Heathrow Airport to Dublin flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Dublin that are best for you.

See travel insights to Dublin from

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

What is the cheapest month to fly to Dublin?

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

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

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?

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

There are 3 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 January 2026, prices for London Heathrow Airport to Dublin flights are approximately 7% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from London Heathrow to Dublin?

British Airways is the most popular carrier operating from London Heathrow to Dublin

Which airlines fly to Dublin?

How often are flights from London to Dublin delayed?

Historically, on average around 15% of flights between London and Dublin have experienced a delay on any given week. The average delay length over the past 12 months has been 105 minutes.

What is the most punctual flight time for London to Dublin flights?

Generally, flights departing at night tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on London to Dublin flights?

According to our data, Aer Lingus have had the fewest delays on this route over the last 12 months, with about 15% of their flights experiencing any sort of delay.

How many flights depart from London Heathrow Airport to Dublin on average per day?

As of January 2026, 43 flights take off from London Heathrow Airport and land in Dublin each day. The most common flight departure time for this route is 08:00, with 43% of daily flights taking off at midday.

How many flights depart from London Heathrow Airport to Dublin on average per week?

As of January 2026, 305 flights take off from London Heathrow Airport and land in Dublin each week. The most common flight departure day for this route is Thu, with 22% of weekly flights taking off on this day.

When to book flights from London Heathrow Airport to Dublin

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

Fastest flight time

Direct flights

Airports in Dublin

How far is London Heathrow to Dublin by plane?

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

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?

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

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

Aer Lingus Flights From London Heathrow Airport to Dublin

British Airways Flights From London Heathrow Airport to Dublin

Travelling to a place near Dublin?

Why use momondo?

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

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

How can momondo help me find flights 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?

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Ireland

Airports servicing Ireland