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

Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

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

Over the past year, Aer Lingus has had the lowest number of delays on this route, with just 14% of flights being delayed.

How often are flights from London to Dublin delayed?

About 14% of weekly flights between London and Dublin have experienced delays in the past year, with the average delay time being 106 minutes.

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

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

How long is the flight from London Heathrow Airport to Dublin?

For as low as C$ 168, British Airways can have you in Dublin from London Heathrow Airport in 1h 20m. The distance between London Heathrow Airport and Dublin is about 449 km. All flights are typically direct.

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

Flying on British Airways is currently your cheapest option to Dublin, with prices starting at C$ 150. Another option worth looking into is Aer Lingus, starting at C$ 182 round trip. British Airways is priced at 40% lower than the current average price of a flight leaving 3 months from now.

Weekly flight availability from London Heathrow Airport to Dublin

The most flights from LHR to DUB are scheduled on a Monday (76 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (38 on average).

In terms of precipitation, rainfall in Dublin ranges from 49.0 - 79.0 mm 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.

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).

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

Looking at all options, your cheapest flight can be booked for C$ 103. While the most popular route (London Heathrow - Dublin) can be booked for C$ 540 on average, our data indicates C$ 250 when flying from London Heathrow Airport to Dublin.

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: Air Canada (88%), Aer Lingus (80%), Qatar Airways( 80%).

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

For a flight from London Heathrow to Dublin, you will be flying into Dublin. Dublin (DUB) is just 9.2 km from the centre of the city. Dublin is the only Dublin airport and it handles 52 inbound flights from London Heathrow per day. 2 airlines have flights to Dublin from London Heathrow on a regular basis.

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 vacation 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.

C$ 81+ Cheap Flights from London Heathrow Airport to Dublin

Cheapflights Tip: The best prices from London Heathrow to Dublin are usually found in January or February, booked 87 days in advance, depart on a Monday or Wednesday and return on a Friday

Cheap flight deals from Heathrow to Dublin

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

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 6 October 2026.

Tue 22/126:30 a.m. -

Nonstop1h 20m

Mon 4/18:40 p.m. -

Nonstop1h 20m

Deal found 5/10C$ 163

Sat 7/111:45 p.m. -

Nonstop1h 30m

Thu 12/1110:50 a.m. -

Nonstop1h 30m

Deal found 1/10C$ 164

Sat 7/114:20 p.m. -

Nonstop1h 25m

Mon 9/118:40 p.m. -

Nonstop1h 20m

Deal found 4/10C$ 165

Thu 3/126:30 a.m. -

Nonstop1h 20m

Mon 7/128:45 a.m. -

Nonstop1h 30m

Deal found 6/10C$ 170

Thu 3/126:30 a.m. -

Nonstop1h 20m

Sat 5/124:10 p.m. -

Nonstop1h 25m

Deal found 1/10C$ 171

Wed 16/126:30 a.m. -

Nonstop1h 20m

Mon 21/128:40 p.m. -

Nonstop1h 20m

Deal found 3/10C$ 173

Mon 9/111:25 p.m. -

Nonstop1h 30m

Thu 12/1110:50 a.m. -

Nonstop1h 30m

Deal found 1/10C$ 174

Sat 5/121:45 p.m. -

Nonstop1h 30m

Sun 6/128:40 p.m. -

Nonstop1h 20m

Deal found 5/10C$ 175

Fri 6/116:30 a.m. -

Nonstop1h 20m

Wed 11/119:00 a.m. -

Nonstop1h 30m

Deal found 1/10C$ 177

Thu 5/116:30 a.m. -

Nonstop1h 20m

Wed 18/118:40 p.m. -

Nonstop1h 20m

Deal found 5/10C$ 178

Mon 9/111:25 p.m. -

Nonstop1h 30m

Sat 14/118:40 p.m. -

Nonstop1h 20m

Deal found 1/10C$ 180

Thu 19/116:30 a.m. -

Nonstop1h 20m

Mon 23/118:40 p.m. -

Nonstop1h 20m

Deal found 5/10C$ 181

Find flight deals from Heathrow to Dublin

Round-trip from	C$ 160
One-way from	C$ 81
Popular in	December
Cheapest in	January
Average price	C$ 237
Good round-trip deal	C$ 246 or less
Good one-way deal	C$ 111 or less

British Airways
29/1-1/2
Nonstop
2h 50m total
London to Dublin

Search Deals

Aer Lingus
20/10-31/12
Nonstop
1h 25m total
London to Dublin

Search Deals

High demand for flights, 2% potential price rise

Search Deals

Cheapest flight prices on average. 1% potential price decrease (C$ 6 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Price to beat on a round-trip flight from London Heathrow to Dublin.

Search Deals

Price to beat on a one-way flight from London Heathrow to Dublin.

Search Deals

Cheapflights Fare Finder

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

Cheapest round-trip

LondonDublin

LHR London Heathrow - DUB Dublin

LHRDUB

London Heathrow

Thu 25/2

8:25 a.m.-9:55 a.m.

Nonstop1h 30m

Dublin

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 110

LondonDublin

LHR London Heathrow - DUB Dublin

LHRDUB

London Heathrow

Sat 3/4

6:15 a.m.-7:40 a.m.

Nonstop1h 25m

Dublin

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 114

Quickest round-trip

LondonDublin

LHR London Heathrow - DUB Dublin

LHRDUB

London Heathrow

Thu 12/11

6:30 a.m.-7:50 a.m.

Nonstop1h 20m

Dublin

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 118

LondonDublin

LHR London Heathrow - DUB Dublin

LHRDUB

London Heathrow

Fri 11/12

6:30 a.m.-7:50 a.m.

Nonstop1h 20m

Dublin

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 118

LondonDublin

LHR London Heathrow - DUB Dublin

LHRDUB

London Heathrow

Wed 24/3

6:30 a.m.-7:50 a.m.

Nonstop1h 20m

Dublin

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 123

LondonDublin

LHR London Heathrow - DUB Dublin

LHRDUB

London Heathrow

Sun 28/3

6:20 a.m.-7:45 a.m.

Nonstop1h 25m

Dublin

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 123

LondonDublin

LHR London Heathrow - DUB Dublin

LHRDUB

London Heathrow

Sun 15/11

8:25 a.m.-9:55 a.m.

Nonstop1h 30m

Dublin

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 127

LondonDublin

LHR London Heathrow - DUB Dublin

LHRDUB

London Heathrow

Fri 4/12

6:30 a.m.-7:50 a.m.

Nonstop1h 20m

Dublin

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 145

LondonDublin

LHR London Heathrow - DUB Dublin

LHRDUB

London Heathrow

Sat 20/3

6:30 a.m.-7:50 a.m.

Nonstop1h 20m

Dublin

Mon 22/3

4:00 p.m.-5:25 p.m.

Nonstop1h 25m

C$ 168

LondonDublin

LHR London Heathrow - DUB Dublin

LHRDUB

London Heathrow

Fri 1/1

12:30 p.m.-2:00 p.m.

Nonstop1h 30m

Dublin

Sat 9/1

3:10 p.m.-4:35 p.m.

Nonstop1h 25m

C$ 185

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/10

Showing 1-10 of 23 resultsSorted by cheapest first

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.

LHR-DUB

Estimated round-trip 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

Prices

Airlines

Delays

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

The price you pay for your flight from London Heathrow Airport to Dublin may vary depending on when you book. For the best chance of a lower fare, look to book 86 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 C$ 208). Flying from London Heathrow Airport to Dublin in December is currently the most expensive (average of C$ 284). 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?

When flying from London Heathrow Airport to Dublin, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 77% versus a flight in the evening.

How much does it cost to fly round-trip from London Heathrow Airport to Dublin?

Airfare is below average for this route at the moment.

London Heathrow Airport to Dublin flights typically cost between C$ 194 and C$ 295 in January.
The cheapest round-trip price found within the last 5 days was C$ 160 on British Airways (28 Jan-30 Jan).

Reviews of airlines servicing Dublin

Check out reviews from past customers who have flown with Aer Lingus and British Airways from London Heathrow Airport to Dublin to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Aer Lingus

7.3

Good

1,817 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Patrick,Sep 2026

CDG - DUB

Flight crew were very nice and friendly and very professional. I enjoyed my flights.

Aer Lingus

7.3

Good

1,817 reviews

Aer Lingus

7.3

Good

1,817 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Patrick,Sep 2026

CDG - DUB

Flight crew were very nice and friendly and very professional. I enjoyed my flights.

British Airways

6.7

Okay

8,245 reviews

Aer Lingus

7.3

Good

1,817 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Patrick,Sep 2026

CDG - DUB

Flight crew were very nice and friendly and very professional. I enjoyed my flights.

Related info for your journey

What airport do you fly into for flights to Dublin from London Heathrow?
For a flight from London Heathrow to Dublin, you will be flying into Dublin. Dublin (DUB) is just 9.2 km from the centre of the city. Dublin is the only Dublin airport and it handles 52 inbound flights from London Heathrow per day. 2 airlines have flights to Dublin from London Heathrow on a regular basis.
How long is the flight from London Heathrow Airport to Dublin?
For as low as C$ 168, British Airways can have you in Dublin from London Heathrow Airport in 1h 20m. The distance between London Heathrow Airport and Dublin is about 449 km. All flights are typically direct.
What are the cheapest airlines flying from London Heathrow Airport to Dublin round-trip?
Flying on British Airways is currently your cheapest option to Dublin, with prices starting at C$ 150. Another option worth looking into is Aer Lingus, starting at C$ 182 round trip. British Airways is priced at 40% lower than the current average price of a flight leaving 3 months from now.
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: Air Canada (88%), Aer Lingus (80%), Qatar Airways( 80%).
What are the cheapest flights from London Heathrow Airport to Dublin?
Looking at all options, your cheapest flight can be booked for C$ 103. While the most popular route (London Heathrow - Dublin) can be booked for C$ 540 on average, our data indicates C$ 250 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 vacation 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 C$ 208). Flying from London Heathrow Airport to Dublin in December is currently the most expensive (average of C$ 284). 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

Swords

Athlone

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Alternative routes

Complete your trip

Direct flights to Ireland

Dublin flight routes

Flights by cabin class

Other flight options

Other flights from Heathrow

Popular flights

Alternative routes for Heathrow to Dublin

Gatwick to Dublin flights

Top 2 airlines flying from Heathrow to Dublin

Airline	Cheapest	Average	Flexibility	On-time
British Airways	CheapestC$ 150	AverageC$ 193	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Aer Lingus	CheapestC$ 182	AverageC$ 300	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Heathrow to Dublin. 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 Dublin?

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 Dublin.

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

Yes, we can. To see specific flights from Heathrow to Dublin with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, Cheapflights offers price alerts on Heathrow to Dublin flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from London Heathrow Airport to Dublin from C$ 81

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Heathrow to Dublin

Cheapest flights from Heathrow to DublinExplore 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 6 October 2026.

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 6 October 2026.

Best flights from Heathrow to DublinDiscover carefully curated flight deals from Heathrow to Dublin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 6 October 2026.

Discover carefully curated flight deals from Heathrow to Dublin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 6 October 2026.

Direct flights from Heathrow to DublinExplore direct flight options from Heathrow to Dublin based on user searches, and compare prices and availability for your desired travel dates. Data last updated 6 October 2026.

Explore direct flight options from Heathrow to Dublin based on user searches, and compare prices and availability for your desired travel dates. Data last updated 6 October 2026.

Last-minute flights from Heathrow to DublinDiscover last-minute flight deals from Heathrow to Dublin. Data last updated 6 October 2026 and is based on user searches.

Discover last-minute flight deals from Heathrow to Dublin. Data last updated 6 October 2026 and is based on user searches.

One-way flights from Heathrow to DublinSearch for one-way flight options from Heathrow to Dublin. Find affordable one-way fares based on user searches. Data last updated 6 October 2026.

Search for one-way flight options from Heathrow to Dublin. Find affordable one-way fares based on user searches. Data last updated 6 October 2026.

Find flight deals from Heathrow to Dublin

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

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

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.

Cheapflights Insights

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

The price you pay for your flight from London Heathrow Airport to Dublin may vary depending on when you book. For the best chance of a lower fare, look to book 86 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

What is the cheapest time of day to fly from LHR to DUB?

When flying from London Heathrow Airport to Dublin, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 77% versus a flight in the evening.

How much does it cost to fly round-trip from London Heathrow Airport to Dublin?

Airfare is below average for this route at the moment.

London Heathrow Airport to Dublin flights typically cost between C$ 194 and C$ 295 in January.The cheapest round-trip price found within the last 5 days was C$ 160 on British Airways (28 Jan-30 Jan).

Weekly flight availability from London Heathrow Airport to Dublin

The most flights from LHR to DUB are scheduled on a Monday (76 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (38 on average).

How often are flights from London to Dublin delayed?

About 14% of weekly flights between London and Dublin have experienced delays in the past year, with the average delay time being 106 minutes.

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

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

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

Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

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

Over the past year, Aer Lingus has had the lowest number of delays on this route, with just 14% of flights being delayed.

Reviews of airlines servicing Dublin

Check out reviews from past customers who have flown with Aer Lingus and British Airways from London Heathrow Airport to Dublin to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

How long is the flight from London Heathrow Airport to Dublin?

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

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

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

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

How can I find direct flights from Heathrow to Dublin?

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

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

Travelling to a place near Dublin?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Heathrow to Dublin

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Dublin by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to Ireland

Book a non-stop flight to one of these other cities located in Ireland.

Other flights to Dublin

Explore flights to Dublin departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 6 October 2026.

Search flights from Heathrow to Dublin by cabin class

Find flights from Heathrow to Dublin, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Heathrow and Dublin flights

Browse other Heathrow and Dublin flight options. Last updated on 6 October 2026.

Other flights from Heathrow

Browse through other flights departing from Heathrow. Flights are based on user searches made on Cheapflights and were last updated on 6 October 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Top 2 airlines flying from Heathrow to Dublin

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

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

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

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 6 October 2026.

Best flights from Heathrow to Dublin
Discover carefully curated flight deals from Heathrow to Dublin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 6 October 2026.

Direct flights from Heathrow to Dublin
Explore direct flight options from Heathrow to Dublin based on user searches, and compare prices and availability for your desired travel dates. Data last updated 6 October 2026.

Last-minute flights from Heathrow to Dublin
Discover last-minute flight deals from Heathrow to Dublin. Data last updated 6 October 2026 and is based on user searches.

One-way flights from Heathrow to Dublin
Search for one-way flight options from Heathrow to Dublin. Find affordable one-way fares based on user searches. Data last updated 6 October 2026.

London Heathrow Airport to Dublin flights typically cost between C$ 194 and C$ 295 in January.
The cheapest round-trip price found within the last 5 days was C$ 160 on British Airways (28 Jan-30 Jan).