How often are flights from Dublin to London delayed?

About 15% of weekly flights between Dublin and London have experienced delays in the past year, with the average delay time being 97 minutes.

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

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

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 Thursday has historically faced a higher average of delays compared to other days of the week.

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

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

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

Departing from Dublin to London Heathrow Airport will take you 1h 15m. The distance from Dublin to London Heathrow Airport is about 449 km. Most flights are nonstop.

What is the cheapest airline to fly from Dublin to London Heathrow Airport round-trip?

Our cheapest airline available from Dublin to London Heathrow Airport is British Airways. Our recent data shows that you can find tickets from as low as C$ 131 on this airline. This flight start at 44% lower than the current average price 3 months from now.

Weekly flight availability from Dublin to London Heathrow Airport

The most flights from DUB to LHR are scheduled on a Monday (76 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (44 on average).

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 mm per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London Heathrow Airport, 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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

Looking for the cheapest flight from Dublin to London Heathrow Airport? While on average our users pay C$ 193, our data indicates the cheapest price to be C$ 96. The most popular route (Dublin - London Heathrow), is priced around C$ 577.

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

Before booking your flight to London Heathrow Airport from Dublin, check out the most reliable airlines to get you to your destination on time: Air Canada (84%), Aer Lingus (75%), British Airways( 74%).

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

Most people fly from Dublin (DUB) if they book a flight from Dublin to London Heathrow. On average, Dublin has 63 outbound flights to London Heathrow per day from 1 airline. Dublin is conveniently located just 9.2 km from Dublin’s city centre.

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

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

How can I find direct flights from Dublin to Heathrow?

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

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

Yes. Cheapflights offers flight deals from Dublin to Heathrow 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$ 63+ Cheap Flights from Dublin to London Heathrow Airport

Cheapflights Tip: The best prices from Dublin to London Heathrow are usually found in January or February, booked 63 days in advance, depart on a Friday or Wednesday and return on a Monday

Cheap flight deals from Dublin to Heathrow

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Dublin to Heathrow
Explore the most affordable flight options available from Dublin to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 September 2026.

Sat 14/118:40 p.m. -

Nonstop1h 20m

Sun 15/118:25 a.m. -

Nonstop1h 30m

Deal found 4/9C$ 159

Sat 7/118:40 p.m. -

Nonstop1h 20m

Sun 8/115:20 p.m. -

Nonstop1h 20m

Deal found 7/9C$ 160

Sat 28/118:40 p.m. -

Nonstop1h 20m

Mon 30/116:30 a.m. -

Nonstop1h 20m

Deal found 7/9C$ 161

Tue 6/109:40 a.m. -

Nonstop1h 30m

Tue 13/107:35 p.m. -

Nonstop1h 20m

Deal found 8/9C$ 163

Wed 28/108:40 p.m. -

Nonstop1h 20m

Sat 31/106:30 a.m. -

Nonstop1h 20m

Deal found 7/9C$ 164

Mon 12/108:30 p.m. -

Nonstop1h 15m

Wed 21/105:20 p.m. -

Nonstop1h 30m

Deal found 6/9C$ 166

Sat 19/128:40 p.m. -

Nonstop1h 20m

Tue 29/126:30 a.m. -

Nonstop1h 20m

Deal found 4/9C$ 167

Wed 21/107:45 p.m. -

Nonstop1h 15m

Wed 28/106:30 a.m. -

Nonstop1h 20m

Deal found 7/9C$ 171

Mon 12/108:30 p.m. -

Nonstop1h 15m

Tue 20/105:10 p.m. -

Nonstop1h 30m

Deal found 6/9C$ 174

Fri 16/108:10 p.m. -

Nonstop1h 15m

Mon 19/106:10 p.m. -

Nonstop1h 25m

Deal found 9/9C$ 177

Find flight deals from Dublin to Heathrow

Round-trip from	C$ 152
One-way from	C$ 63
Popular in	April
Cheapest in	January
Average price	C$ 246
Good one-way deal	C$ 117 or less

British Airways
6/1-9/1
Nonstop
2h 50m total
Dublin to London

Search Deals

British Airways
5/1-31/12
Nonstop
1h 20m total
Dublin to London

Search Deals

Highest demand for flights based on searches. 3% potential increase in price (C$ 11 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (C$ 4 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

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

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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DublinLondon

DUB Dublin - LHR London Heathrow

DUBLHR

Dublin

Sat 9/1

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

Nonstop1h 25m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 72

Quickest round-trip

DublinLondon

DUB Dublin - LHR London Heathrow

DUBLHR

Dublin

Fri 2/10

8:10 p.m.-9:25 p.m.

Nonstop1h 15m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 108

DublinLondon

DUB Dublin - LHR London Heathrow

DUBLHR

Dublin

Tue 6/10

5:40 p.m.-2:15 p.m.

1 stop20h 35m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 121

DublinLondon

DUB Dublin - LHR London Heathrow

DUBLHR

Dublin

Fri 13/11

1:25 p.m.-7:15 p.m.

1 stop5h 50m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 124

DublinLondon

DUB Dublin - LHR London Heathrow

DUBLHR

Dublin

Thu 17/12

1:25 p.m.-5:00 p.m.

1 stop3h 35m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 126

DublinLondon

DUB Dublin - LHR London Heathrow

DUBLHR

Dublin

Mon 1/3

1:25 p.m.-7:15 p.m.

1 stop5h 50m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 126

DublinLondon

DUB Dublin - LHR London Heathrow

DUBLHR

Dublin

Thu 7/1

5:45 a.m.-10:45 a.m.

1 stop5h 00m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 126

DublinLondon

DUB Dublin - LHR London Heathrow

DUBLHR

Dublin

Sat 7/11

5:45 a.m.-12:05 p.m.

1 stop6h 20m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 126

DublinLondon

DUB Dublin - LHR London Heathrow

DUBLHR

Dublin

Wed 3/3

1:25 p.m.-5:00 p.m.

1 stop3h 35m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 126

DublinLondon

DUB Dublin - LHR London Heathrow

DUBLHR

Dublin

Sun 22/11

5:45 a.m.-10:45 a.m.

1 stop5h 00m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 126

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 24 resultsSorted by cheapest first

Best time to book a flight from Dublin to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Dublin with our price prediction graph.

DUB-LHR

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 Dublin to London Heathrow Airport

Prices

Airlines

Delays

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

The price you pay for your flight from Dublin to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 62 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 Dublin to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Dublin to London Heathrow Airport (average of C$ 188). Flying from Dublin to London Heathrow Airport in April is currently the most expensive (average of C$ 259). 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 DUB to LHR?

A simple way to save on the total cost of your ticket is to fly from Dublin to London Heathrow Airport in the afternoon. If you’re flexible enough to do this you can expect to save up to 82% on your trip compared to booking a flight in the morning.

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

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

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

Airfare is below average for this route at the moment.

Dublin to London Heathrow Airport flights typically cost between C$ 199 and C$ 310 in January.
The cheapest round-trip price found within the last 5 days was C$ 152 on British Airways (6 Jan-9 Jan).

Reviews of airlines servicing Heathrow

Get a feel of what it's like to fly with British Airways from Dublin to London Heathrow Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

British Airways

6.7

Okay

8,210 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jul 2026

BUD - LHR

We had an absolute nightmare experience with British Airways. Check in was bad. They “lost” our business class seats that I selected a long time ago. Our luggage almost didn’t make it on the plane in London to LAX. Flight attendant was rude!! Not that it should matter but she thought bc of the seat assignment issue we were “upgraded” and that’s we had no choice in meals. Not that the meals were any good anyway.

British Airways

6.7

Okay

8,210 reviews

British Airways

6.7

Okay

8,210 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jul 2026

BUD - LHR

Related info for your journey

What airport do you fly from for flights from Dublin to London Heathrow?
Most people fly from Dublin (DUB) if they book a flight from Dublin to London Heathrow. On average, Dublin has 63 outbound flights to London Heathrow per day from 1 airline. Dublin is conveniently located just 9.2 km from Dublin’s city centre.
How long is the flight from Dublin to London Heathrow Airport?
Departing from Dublin to London Heathrow Airport will take you 1h 15m. The distance from Dublin to London Heathrow Airport is about 449 km. Most flights are nonstop.
What is the cheapest airline to fly from Dublin to London Heathrow Airport round-trip?
Our cheapest airline available from Dublin to London Heathrow Airport is British Airways. Our recent data shows that you can find tickets from as low as C$ 131 on this airline. This flight start at 44% lower than the current average price 3 months from now.
What are the most reliable airlines from Dublin to London Heathrow Airport?
Before booking your flight to London Heathrow Airport from Dublin, check out the most reliable airlines to get you to your destination on time: Air Canada (84%), Aer Lingus (75%), British Airways( 74%).
What are the cheapest flights from Dublin to London Heathrow Airport?
Looking for the cheapest flight from Dublin to London Heathrow Airport? While on average our users pay C$ 193, our data indicates the cheapest price to be C$ 96. The most popular route (Dublin - London Heathrow), is priced around C$ 577.
Can I find deals for flights from Dublin to Heathrow that include hotel bookings?
Yes. In addition to deals on Dublin to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dublin to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dublin to Heathrow.
Can I find deals for business class flights from Dublin to Heathrow?
Yes. Cheapflights offers flight deals from Dublin to Heathrow 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 Dublin to London Heathrow Airport?
Currently, January is the cheapest month in which you can book a flight from Dublin to London Heathrow Airport (average of C$ 188). Flying from Dublin to London Heathrow Airport in April is currently the most expensive (average of C$ 259). 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

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Top airline flying from Dublin to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
British Airways	CheapestC$ 131	AverageC$ 213	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

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

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

Millions of users choose and trust Cheapflights to book the best flight deals from Dublin to Heathrow 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 Dublin to Heathrow with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Dublin to Heathrow flexibly with Cheapflights today.

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

Yes! Start tracking prices for Dublin to Heathrow flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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Cheap flights from Dublin to London Heathrow Airport from C$ 63

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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Dublin to Heathrow

Cheapest flights from Dublin to HeathrowExplore the most affordable flight options available from Dublin to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 September 2026.

Explore the most affordable flight options available from Dublin to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 September 2026.

Best flights from Dublin to HeathrowDiscover carefully curated flight deals from Dublin to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 9 September 2026.

Discover carefully curated flight deals from Dublin to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 9 September 2026.

Direct flights from Dublin to HeathrowExplore direct flight options from Dublin to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 9 September 2026.

Explore direct flight options from Dublin to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 9 September 2026.

Last-minute flights from Dublin to HeathrowDiscover last-minute flight deals from Dublin to Heathrow. Data last updated 9 September 2026 and is based on user searches.

Discover last-minute flight deals from Dublin to Heathrow. Data last updated 9 September 2026 and is based on user searches.

One-way flights from Dublin to HeathrowSearch for one-way flight options from Dublin to Heathrow. Find affordable one-way fares based on user searches. Data last updated 9 September 2026.

Search for one-way flight options from Dublin to Heathrow. Find affordable one-way fares based on user searches. Data last updated 9 September 2026.

Find flight deals from Dublin to Heathrow

Round-trip from

One-way from

Popular in

Cheapest in

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Good one-way deal

Cheapflights Fare Finder

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

Best time to book a flight from Dublin to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Dublin with our price prediction graph.

Cheapflights Insights

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

The price you pay for your flight from Dublin to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 62 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 Dublin to London Heathrow Airport?

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

A simple way to save on the total cost of your ticket is to fly from Dublin to London Heathrow Airport in the afternoon. If you’re flexible enough to do this you can expect to save up to 82% on your trip compared to booking a flight in the morning.

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

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

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

Airfare is below average for this route at the moment.

Dublin to London Heathrow Airport flights typically cost between C$ 199 and C$ 310 in January.The cheapest round-trip price found within the last 5 days was C$ 152 on British Airways (6 Jan-9 Jan).

Weekly flight availability from Dublin to London Heathrow Airport

The most flights from DUB to LHR are scheduled on a Monday (76 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (44 on average).

How often are flights from Dublin to London delayed?

About 15% of weekly flights between Dublin and London have experienced delays in the past year, with the average delay time being 97 minutes.

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

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night 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 Thursday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Dublin to London 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 Heathrow

Get a feel of what it's like to fly with British Airways from Dublin to London Heathrow Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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

What is the cheapest airline to fly from Dublin to London Heathrow Airport round-trip?

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

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

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

How can I find direct flights from Dublin to Heathrow?

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

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

Travelling to a place near London Heathrow Airport?

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.

Alternative routes for Dublin to Heathrow

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

Complete your trip

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

Direct flights to England

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Search flights from Dublin to Heathrow by cabin class

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

Other flights to Heathrow

Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 9 September 2026.

Dublin and Heathrow flights

Browse other Dublin and Heathrow flight options. Last updated on 9 September 2026.

Other flights from Dublin

Browse through other flights departing from Dublin. Flights are based on user searches made on Cheapflights and were last updated on 9 September 2026.

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Top airline flying from Dublin to Heathrow

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

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

Cheapest flights from Dublin to Heathrow
Explore the most affordable flight options available from Dublin to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 September 2026.

Best flights from Dublin to Heathrow
Discover carefully curated flight deals from Dublin to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 9 September 2026.

Direct flights from Dublin to Heathrow
Explore direct flight options from Dublin to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 9 September 2026.

Last-minute flights from Dublin to Heathrow
Discover last-minute flight deals from Dublin to Heathrow. Data last updated 9 September 2026 and is based on user searches.

One-way flights from Dublin to Heathrow
Search for one-way flight options from Dublin to Heathrow. Find affordable one-way fares based on user searches. Data last updated 9 September 2026.

Dublin to London Heathrow Airport flights typically cost between C$ 199 and C$ 310 in January.
The cheapest round-trip price found within the last 5 days was C$ 152 on British Airways (6 Jan-9 Jan).