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

British Airways, Aer Lingus, and Vueling are the most popular carriers operating from London Heathrow to Dublin

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

306 flights are operational weekly from London Heathrow Airport to Dublin as of November 2025. The most popular departure day for this route is Tue, with 20% of flights per week taking off on this day.

How often are flights from London to Dublin delayed?

Historically, on average around 16% 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 106 minutes.

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

As of November 2025, 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.

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

Generally, flights departing in the morning 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, United Airlines have had the fewest delays on this route over the last 12 months, with no flights being classified as delayed.

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?

As of November 2025, there are 2 operators available to choose from 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 a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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.

$91 Cheap Flights from London Heathrow Airport to Dublin in 2025/26

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15:30 - 17:00LHR-DUB

1h 30mdirect

13:10 - 14:35DUB-LHR

1h 25mdirect

$148British Airways

Find Deal

Sat, 29 Nov - Wed, 3 Dec

15:30 - 17:00LHR-DUB

1h 30mdirect

10:45 - 12:20DUB-LHR

1h 35mdirect

$149British Airways

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Thu, 11 Dec - Sun, 14 Dec

18:15 - 19:40LHR-DUB

1h 25mdirect

08:50 - 10:25DUB-LHR

1h 35mdirect

$151British Airways

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Tue, 9 Dec - Wed, 10 Dec

15:30 - 17:00LHR-DUB

1h 30mdirect

20:40 - 22:00DUB-LHR

1h 20mdirect

$152British Airways

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Thu, 5 Feb - Thu, 5 Feb

18:25 - 19:50LHR-DUB

1h 25mdirect

10:20 - 11:55DUB-LHR

1h 35mdirect

$154British Airways

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Sat, 7 Feb - Wed, 11 Feb

18:15 - 19:40LHR-DUB

1h 25mdirect

08:50 - 10:25DUB-LHR

1h 35mdirect

$155British Airways

Find Deal

Tue, 9 Dec - Wed, 10 Dec

15:30 - 17:00LHR-DUB

1h 30mdirect

08:50 - 10:25DUB-LHR

1h 35mdirect

$157British Airways

Find Deal

Thu, 11 Dec - Fri, 12 Dec

06:30 - 07:55LHR-DUB

1h 25mdirect

10:45 - 12:20DUB-LHR

1h 35mdirect

$158British Airways

Find Deal

Thu, 11 Dec - Sun, 14 Dec

12:45 - 14:15LHR-DUB

1h 30mdirect

10:45 - 12:20DUB-LHR

1h 35mdirect

$164British Airways

Find Deal

Sun, 8 Mar - Mon, 9 Mar

20:45 - 22:05LHR-DUB

1h 20mdirect

20:40 - 22:00DUB-LHR

1h 20mdirect

$195Multiple Airlines

Find Deal

Mon, 29 Dec - Thu, 8 Jan

British Airways flights from London Heathrow Airport to Dublin

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

British Airways

29 Nov

LHR15:30London Heathrow

1h 30m

DUB17:00Dublin

3 Dec

DUB13:10Dublin

1h 25m

LHR14:35London Heathrow

$148

Find similar

British Airways

11 Dec

LHR15:30London Heathrow

1h 30m

DUB17:00Dublin

14 Dec

DUB10:45Dublin

1h 35m

LHR12:20London Heathrow

$149

Find similar

British Airways

9 Dec

LHR18:15London Heathrow

1h 25m

DUB19:40Dublin

10 Dec

DUB08:50Dublin

1h 35m

LHR10:25London Heathrow

$151

Find similar

Aer Lingus flights from London Heathrow Airport to Dublin

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

Aer Lingus

16 Nov

LHR07:50London Heathrow

1h 20m

DUB09:10Dublin

17 Nov

DUB19:45Dublin

1h 20m

LHR21:05London Heathrow

$264

Find similar

Aer Lingus

16 Nov

LHR07:50London Heathrow

1h 20m

DUB09:10Dublin

23 Nov

DUB06:40Dublin

1h 25m

LHR08:05London Heathrow

$287

Find similar

Aer Lingus

13 Nov

LHR07:50London Heathrow

1h 20m

DUB09:10Dublin

14 Nov

DUB06:40Dublin

1h 25m

LHR08:05London Heathrow

$307

Find similar

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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Return

Price

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Sat 29/11

15:30-17:00

Nonstop1h 30m

Dublin

Wed 3/12

13:10-14:35

Nonstop1h 25m

$148

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Thu 11/12

15:30-17:00

Nonstop1h 30m

Dublin

Sun 14/12

10:45-12:20

Nonstop1h 35m

$149

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Tue 9/12

18:15-19:40

Nonstop1h 25m

Dublin

Wed 10/12

08:50-10:25

Nonstop1h 35m

$151

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Thu 5/2

15:30-17:00

Nonstop1h 30m

Dublin

Thu 5/2

20:40-22:00

Nonstop1h 20m

$152

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Sat 7/2

18:25-19:50

Nonstop1h 25m

Dublin

Wed 11/2

10:20-11:55

Nonstop1h 35m

$154

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Tue 9/12

18:15-19:40

Nonstop1h 25m

Dublin

Wed 10/12

08:50-10:25

Nonstop1h 35m

$155

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Thu 11/12

15:30-17:00

Nonstop1h 30m

Dublin

Fri 12/12

08:50-10:25

Nonstop1h 35m

$157

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Thu 11/12

06:30-07:55

Nonstop1h 25m

Dublin

Sun 14/12

10:45-12:20

Nonstop1h 35m

$158

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Sun 8/3

12:45-14:15

Nonstop1h 30m

Dublin

Mon 9/3

10:45-12:20

Nonstop1h 35m

$164

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Mon 29/12

20:45-22:05

Nonstop1h 20m

Dublin

Thu 8/1

20:40-22:00

Nonstop1h 20m

$195

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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 typical price of a round-trip flight between London Heathrow Airport and Dublin?

What is the cheapest month to fly to Dublin?

The month of January is, on average, the cheapest month to fly to Dublin from London Heathrow Airport, with most prices found around $212. If you are unable to visit Dublin during the month of January, then departing from London Heathrow Airport during the month February is also very affordable. Most momondo users find prices during this month for around $231.

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

The cheapest day to depart from London Heathrow Airport to Dublin is on a Tuesday. Travellers who choose to depart for Dublin on a Tuesday will often find tickets for as low as $127. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from London Heathrow Airport to Dublin for around $187.

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

In the evening is the cheapest time of day to fly from London Heathrow Airport to Dublin when you can find flight prices for as low as $123. Flying to Dublin in the evening is an ideal time because this is during off-peak travel hours. Flights to Dublin are more costly at midday, with an average ticket price of $199. Departure times at midday fall within the peak daily travel times, which is why tickets can be more expensive.

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 $262 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 $197 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 November 2025, prices for London Heathrow Airport to Dublin flights are approximately 60% 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	$146
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 $146. The best return flight deal from London Heathrow Airport to Dublin found on momondo in the last 72 hours is $191.

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 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. In terms of flight time, this usually takes a little over 1h 20m.
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?
As of November 2025, there are 2 operators available to choose from 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 a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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?
momondo data reveals that the most frequently booked plane model on the route from London Heathrow Airport to Dublin is Boeing 787-9 Dreamliner, representing 14.68% of all bookings. The subsequent popular models are Boeing 777 at 11.07%, Airbus A350-1000 at 8.83%, and Airbus A320neo at 7.65%.
What is the most popular airline from London Heathrow Airport to Dublin?
Based on momondo bookings for flights between London Heathrow Airport and Dublin, the leading airline is British Airways, making up 68% of the total bookings. Other popular airlines include Aer Lingus with 32%.

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 Airways	PriceFrom $116	Free cancellation	Rating 6.7 7,495 reviews		Search British Airways flights
Aer Lingus	PriceFrom $215	Free cancellation	Rating 7.2 1,365 reviews		Search Aer Lingus flights

Aer Lingus Flights From London Heathrow Airport to Dublin
Aer Lingus flight deals from London Heathrow Airport to Dublin start from $215 round-trip. Over the 77 Aer Lingus flights for this route in a normal week, average airfare is usually $283 round-trip - but some users have found much cheaper deals with momondo.
British Airways Flights From London Heathrow Airport to Dublin
British Airways (6.7/10 from 7,495 reviews) operates around 75 flights from London Heathrow Airport to Dublin in any given week. The average British Airways airfare for this route is around $184, with deals from around $116 rare but found on momondo. Referenced prices are for round-trip London Heathrow Airport to Dublin flight searches in the last 72 hours.

Athlone

Kilkenny

Malahide

Swords

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?

All flight searches from London to Dublin on momondo can be filtered to show those which offer flexible booking policies.

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?

Of course. momondo tracks the price of London to Dublin flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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 $91

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 1/2. 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

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

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

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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

What is the typical price of a round-trip flight between London Heathrow Airport and 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 November 2025, prices for London Heathrow Airport to Dublin flights are approximately 60% 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, Aer Lingus, and Vueling are the most popular carriers operating from London Heathrow to Dublin

How often are flights from London to Dublin delayed?

Historically, on average around 16% 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 106 minutes.

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

Generally, flights departing in the morning 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, United Airlines have had the fewest delays on this route over the last 12 months, with no flights being classified as delayed.

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

As of November 2025, 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?

306 flights are operational weekly from London Heathrow Airport to Dublin as of November 2025. The most popular departure day for this route is Tue, with 20% of flights per week 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