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$72+ Cheap flights from Heathrow (LHR) to Dublin (DUB)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — DUB
Aug 27 — Sep 31
Thu 8/27
Thu 9/3
1 adult, Economy
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Cheapflights Tip: The best prices from London Heathrow to Dublin are usually found in January or October, booked 52 days in advance, depart on a Friday or Sunday and return on a Tuesday

Cheap flight deals from Heathrow to Dublin

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 July 28, 2026.

This Expedia deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/241:55 pm
LHR
-
DUB
Nonstop1h 30m
British Airways
Tue 12/110:55 am
DUB
-
LHR
Nonstop1h 35m
British Airways
Deal found 7/27$107
This Expedia deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/36:30 am
LHR
-
DUB
Nonstop1h 25m
British Airways
Sat 12/54:05 pm
DUB
-
LHR
Nonstop1h 25m
British Airways
Deal found 7/27$108
This British Airways deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:15 pm
LHR
-
DUB
Nonstop1h 25m
British Airways
Sat 11/74:05 pm
DUB
-
LHR
Nonstop1h 25m
British Airways
Deal found 7/27$111
This British Airways deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/213:30 pm
LHR
-
DUB
Nonstop1h 30m
British Airways
Wed 10/288:50 am
DUB
-
LHR
Nonstop1h 35m
British Airways
Deal found 7/27$112
This British Airways deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:30 am
LHR
-
DUB
Nonstop1h 25m
British Airways
Wed 11/118:50 am
DUB
-
LHR
Nonstop1h 35m
British Airways
Deal found 7/24$114
This British Airways deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:05 pm
LHR
-
DUB
Nonstop1h 25m
British Airways
Fri 10/168:35 am
DUB
-
LHR
Nonstop1h 35m
British Airways
Deal found 7/27$116
This British Airways deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/176:30 am
LHR
-
DUB
Nonstop1h 25m
British Airways
Mon 12/218:40 pm
DUB
-
LHR
Nonstop1h 20m
British Airways
Deal found 7/27$117
This British Airways deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:15 am
LHR
-
DUB
Nonstop1h 25m
British Airways
Wed 9/238:35 am
DUB
-
LHR
Nonstop1h 35m
British Airways
Deal found 7/23$118
This British Airways deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/11:55 pm
LHR
-
DUB
Nonstop1h 30m
British Airways
Fri 12/48:35 pm
DUB
-
LHR
Nonstop1h 20m
British Airways
Deal found 7/27$119
This British Airways deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/86:20 am
LHR
-
DUB
Nonstop1h 25m
British Airways
Tue 9/297:30 pm
DUB
-
LHR
Nonstop1h 15m
British Airways
Deal found 7/27$120

Find flight deals from Heathrow to Dublin

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Dublin (DUB). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$112
(British Airways)

One-way from

$71
(Orbitz)

Popular in

July

Cheapest in

January

Average price

$205

Good round-trip deal

$202 or less

Good one-way deal

$233 or less
Provider with most accurate pricing for London Heathrow-Dublin flight deals.
Search Deals
Provider most trusted by Cheapflights users for London Heathrow-Dublin flights.
Search Deals
From London Heathrow to Dublin
Search Deals
One-way flight from London Heathrow to Dublin
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($17 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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

 
Customize your flight search to find flights from Heathrow to Dublin that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 28, 2026.
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 - DUB

LHRDUB

London Heathrow

Tue 12/1

1:55 pm-3:25 pm

Nonstop1h 30m

Dublin

Fri 12/4

8:35 pm-9:55 pm

Nonstop1h 20m

$119
Quickest round-trip

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Wed 9/9

6:15 am-7:40 am

Nonstop1h 25m

Dublin

Tue 9/15

8:25 pm-9:40 pm

Nonstop1h 15m

$122

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Fri 10/23

6:20 am-7:45 am

Nonstop1h 25m

Dublin

Mon 10/26

8:40 pm-10:00 pm

Nonstop1h 20m

$125

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Mon 9/21

6:20 am-7:45 am

Nonstop1h 25m

Dublin

Mon 9/28

8:30 am-10:05 am

Nonstop1h 35m

$125

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Wed 10/21

6:05 pm-7:30 pm

Nonstop1h 25m

Dublin

Fri 10/23

8:35 am-10:10 am

Nonstop1h 35m

$126

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Tue 9/22

5:10 pm-6:40 pm

Nonstop1h 30m

Dublin

Thu 9/24

1:45 pm-3:15 pm

Nonstop1h 30m

$127

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Wed 9/9

5:20 pm-6:50 pm

Nonstop1h 30m

Dublin

Thu 9/10

8:35 am-10:10 am

Nonstop1h 35m

$128

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Fri 9/4

6:20 am-7:45 am

Nonstop1h 25m

Dublin

Sat 9/5

8:15 pm-9:30 pm

Nonstop1h 15m

$130

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Wed 10/14

6:05 pm-7:30 pm

Nonstop1h 25m

Dublin

Sat 10/17

8:15 pm-9:30 pm

Nonstop1h 15m

$131

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Tue 8/11

5:10 pm-6:40 pm

Nonstop1h 30m

Dublin

Sun 8/16

8:35 am-10:10 am

Nonstop1h 35m

$135

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/23

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Compare providers for flights from Heathrow to Dublin

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Heathrow to Dublin in July.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on London Heathrow Airport-Dublin flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Heathrow Airport-Dublin flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-Dublin flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Heathrow Airport-Dublin flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London Heathrow Airport-Dublin flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.
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

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

Booking 51 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Dublin. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 $143). Flying from London Heathrow Airport to Dublin in July is currently the most expensive (average of $205). 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?

Find hourly flight availability from Heathrow to Dublin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 28, 2026.

Unlike in the morning, when flights are generally more expensive, you can save up to 62% on flights from London Heathrow Airport to Dublin by exploring options for tickets in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from Heathrow to Dublin. Price data was last updated on July 25, 2026.

Travelers seeking maximum savings on their London Heathrow Airport to Dublin flight should consider departing on Monday afternoons when fares are most often at their lowest. Tuesday evenings 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 London Heathrow Airport to Dublin?

Airfare is below average for this route at the moment.

London Heathrow Airport to Dublin flights typically cost between $150 and $257 in November.
The cheapest round-trip price found within the last 5 days was $107 on British Airways (Nov 24-Dec 1).

The best insider tips for London Heathrow Airport to Dublin flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your London Heathrow Airport to Dublin trip
Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on British Airways

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Read more
Evie Carrick

Evie Carrick

Expert on Aer Lingus

Evie Carrick is a writer and editor who has lived in five countries and traveled to over 50, with extensive experience flying around the world. She was born in Colorado, but has spent time flying to both coasts to visit family. She writes regularly for Travel + Leisure, BuzzFeed, and SKI and recently published seven travel journals with Simon & Schuster.

Read more
James March

James March

Expert on DUB

For UK-based James March, nothing beats the thrill and chaos of arriving in a new city for the first time, and he tries to put that feeling into his writing and inspire others to travel too. From Birmingham to Blackpool and Leicester to Liverpool, James has reviewed hotels, written narratives and created guides for those who love to travel.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on LHR

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Reviews of airlines servicing Dublin

Get insights into the airlines that provide service to Dublin. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dublin. Reviews last updated July 28, 2026.
Read through reviews of airlines operating flights from London Heathrow Airport to Dublin, such as Aer Lingus and British Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.3
Good
1,682 reviews

Boarding

7.4

Comfort

7.2

Entertainment

7.0

Overall

7.3

Crew

8.1

Food

6.7

Reviews

1 / 20
6.0
Good

Anonymous,Jun 2026

FCO - DUB

Very disappointed that there was no WiFi or entertainment on the plane. For a 9+ hour flight that was awful! Staff were very nice and friendly.
Aer Lingus
7.3
Good
1,682 reviews
Aer Lingus
7.3
Good
1,682 reviews

Boarding

7.4

Comfort

7.2

Entertainment

7.0

Overall

7.3

Crew

8.1

Food

6.7

Reviews

1 / 20
6.0
Good

Anonymous,Jun 2026

FCO - DUB

Very disappointed that there was no WiFi or entertainment on the plane. For a 9+ hour flight that was awful! Staff were very nice and friendly.
British Airways
6.7
Okay
8,130 reviews
Aer Lingus
7.3
Good
1,682 reviews

Boarding

7.4

Comfort

7.2

Entertainment

7.0

Overall

7.3

Crew

8.1

Food

6.7

Reviews

1 / 20
6.0
Good

Anonymous,Jun 2026

FCO - DUB

Very disappointed that there was no WiFi or entertainment on the plane. For a 9+ hour flight that was awful! Staff were very nice and friendly.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Dublin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Located just 5.7 mi from the city center, Dublin is the airport most travelers will use when flying to Dublin from London Heathrow. Booking flights from London Heathrow to Dublin (DUB) should be relatively easy as there are 58 daily inbound flights from London Heathrow from 2 different airlines.

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

    A quick flight from London Heathrow Airport to Dublin can take about 1h 30m. British Airways provides one of the quickest options available for as low as $112. The distance between London Heathrow Airport and Dublin is about 279 mi. Generally, flights for this route are nonstop.

  • 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 $108. Another option worth looking into is Aer Lingus, starting at $153 round trip. British Airways is 39% cheaper than the average price of flights available within the next 90 days to this destination.

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

    No one likes to see their flight delayed. When booking a flight from London Heathrow Airport to Dublin consider choosing Air Canada (82%), Kenya Airways (79%) or Aer Lingus (76%) as they are the most reliable in getting you off to your destination on time.

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

    On average you can expect to pay $739 for a flight from London Heathrow Airport to Dublin. The cheapest flight overall is $101 while the most popular route, (London Heathrow - Dublin) is currently priced at $119.

  • 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 $143). Flying from London Heathrow Airport to Dublin in July is currently the most expensive (average of $205). 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

Traveling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Castleknock

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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.
Gatwick to Dublin flights
Heathrow to Cork flights
Heathrow to Shannon flights

Top 2 airlines flying from Heathrow to Dublin

Discover the top 2 airlines that operate flights from Heathrow to Dublin. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$108Average$172FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$153Average$227FlexibilityNo cancel feeOn-timeN/A

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