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$39+ Cheap flights from Dublin (DUB) to Heathrow (LHR)

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 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — LHR
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Dublin to London Heathrow are usually found in January or September, booked 48 days in advance, depart on a Thursday or Friday and return on a Friday

Cheap flight deals from Dublin to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) to Heathrow (LHR). 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 junio 12, 2025.

Round-trip from

$99
(Expedia)

One-way from

$39
(Expedia)

Popular in

June

Cheapest in

January

Average price

$176

Good round-trip deal

$161 or less

Good one-way deal

$87 or less
From Dublin to London Heathrow
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One-way flight from Dublin to London Heathrow
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Highest demand for flights based on searches. 7% potential increase in price ($11 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Dublin to London Heathrow.
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Price to beat on a one-way flight from Dublin to London Heathrow.
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Find flight deals 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 junio 12, 2025.

This Expedia deal was found by Cheapflights users on 6/10. 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.
mié. 9/248:20 pmDUB - LHR
Nonstop1h 20mBritish Airways
mié. 10/86:15 amLHR - DUB
Nonstop1h 25mBritish Airways
Deal found 6/10$99
This CheapOair deal was found by Cheapflights users on 6/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/306:30 amDUB - LHR
Nonstop1h 30mAer Lingus
sáb. 8/28:10 pmLHR - DUB
Nonstop1h 20mAer Lingus
Deal found 6/12$147
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/210:40 amDUB - LHR
Nonstop1h 30mMultiple Airlines
jue. 10/169:10 pmLHR - DUB
Nonstop1h 20mMultiple Airlines
Deal found 6/12$159
This Scandinavian Airlines deal was found by Cheapflights users on 6/10. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/48:05 pmDUB - LHR
1 stop12h 50mScandinavian Airlines
lun. 10/66:40 amLHR - DUB
1 stop5h 10mScandinavian Airlines
Deal found 6/10$198
This Vueling Global deal was found by Cheapflights users on 6/11. 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 Vueling Global is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/87:05 pmDUB - LHR
1 stop19h 10mVueling
mié. 7/163:05 pmLHR - DUB
1 stop16h 30mVueling
Deal found 6/11$199
This KLM deal was found by Cheapflights users on 6/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/161:20 pmDUB - LHR
1 stop4h 15mKLM
mié. 7/306:30 amLHR - DUB
1 stop3h 55mKLM
Deal found 6/11$221
This SWISS deal was found by Cheapflights users on 6/11. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/119:00 amDUB - LHR
1 stop7h 25mSWISS
jue. 8/218:05 pmLHR - DUB
1 stop11h 45mSWISS
Deal found 6/11$248

Cheapflights Fare Finder

Customize your flight search to find flights from Dublin to Heathrow 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 junio 12, 2025.
Use the filters below to find and compare flights from Dublin to London Heathrow Airport that are best for you.

Fly from

Dublin

Fly to

Heathrow

Route

Depart

Return

Price

DublinLondon

DUB - LHR

DUBLHR

Dublin

mié. 9/24

8:20 pm-9:40 pm

Nonstop1h 20m

London Heathrow

mié. 10/8

6:15 am-7:40 am

Nonstop1h 25m

$99

DublinLondon

DUB - LHR

DUBLHR

Dublin

mié. 7/30

6:30 am-8:00 am

Nonstop1h 30m

London Heathrow

sáb. 8/2

8:10 pm-9:30 pm

Nonstop1h 20m

$147

DublinLondon

DUB - LHR

DUBLHR

Dublin

jue. 10/2

10:40 am-12:10 pm

Nonstop1h 30m

London Heathrow

jue. 10/16

9:10 pm-10:30 pm

Nonstop1h 20m

$159

DublinLondon

DUB - LHR

DUBLHR

Dublin

sáb. 10/4

8:05 pm-8:55 am

1 stop12h 50m

London Heathrow

lun. 10/6

6:40 am-11:50 am

1 stop5h 10m

$198

DublinLondon

DUB - LHR

DUBLHR

Dublin

mar. 7/8

7:05 pm-2:15 pm

1 stop19h 10m

London Heathrow

mié. 7/16

3:05 pm-7:35 am

1 stop16h 30m

$199

DublinLondon

DUB - LHR

DUBLHR

Dublin

mié. 7/16

1:20 pm-5:35 pm

1 stop4h 15m

London Heathrow

mié. 7/30

6:30 am-10:25 am

1 stop3h 55m

$221

DublinLondon

DUB - LHR

DUBLHR

Dublin

lun. 8/11

9:00 am-4:25 pm

1 stop7h 25m

London Heathrow

jue. 8/21

8:05 pm-7:50 am

1 stop11h 45m

$248

DublinLondon

DUB - LHR

DUBLHR

Dublin

mié. 12/3

8:30 pm-9:50 pm

Nonstop1h 20m

$39

DublinLondon

DUB - LHR

DUBLHR

Dublin

dom. 9/14

6:30 am-8:00 am

Nonstop1h 30m

$59

DublinLondon

DUB - LHR

DUBLHR

Dublin

jue. 11/6

11:15 am-9:35 pm

1 stop10h 20m

$79

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 19 results
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The best insider tips for Dublin to London Heathrow Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Dublin to London Heathrow Airport trip
Airlines
British Airways

BA's Executive Club offers free seat selection for oneworld Sapphire or Emerald members, even on economy fares.


BA's Club Suite business class offers private pods with doors, available on A350 and most 777 aircraft.

Read more about British Airwaysby Gabriel Leigh
Aer Lingus

Aer Lingus offers Wi-Fi for purchase on most Airbus A330 aircraft, enhancing connectivity during flights.


Aer Lingus provides a complimentary hot meal on all transatlantic flights, ensuring a satisfying dining experience.

Read more about Aer Lingusby Evie Carrick
Airports
DUB

For a quick security experience at DUB, use Fast Track for a fee and prepare your liquids in a clear bag beforehand.

Read more about DUBby James March
LHR

Take the Heathrow Express for the fastest route to central London, arriving at Paddington Station for easy onward travel.

Read more about LHRby Ramsey Qubein
Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on British Airways

Gabriel Leigh

Gabriel Leigh

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

Evie Carrick

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

James March

James March

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

Ramsey Qubein

Ramsey Qubein

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

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.
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

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

Use this chart to determine the optimal time to book a round-trip flight from Dublin to Heathrow. Price data was last updated on June 9, 2025.

The best time to book flights from Dublin to London Heathrow Airport is 48 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, November is the cheapest month in which you can book a flight from Dublin to London Heathrow Airport (average of $661). Flying from Dublin to London Heathrow Airport in June is currently the most expensive (average of $1,108). 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?

Find hourly flight availability from Dublin to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated junio 12, 2025.

A simple way to save on the total cost of your ticket is to fly from Dublin to London Heathrow Airport in the evening. If you’re flexible enough to do this you can expect to save up to 74% on your trip compared to booking a flight in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from Dublin to Heathrow. Price data was last updated on June 8, 2025.

Travelers seeking maximum savings on their Dublin to London Heathrow Airport flight should consider departing on Tuesday 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.

Weekly flight availability from Dublin to London Heathrow Airport

Explore weekly flight availability from Dublin to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated junio 12, 2025.

The most flights from DUB to LHR are scheduled on a Thursday (82 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (42 on average).

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated junio 12, 2025.
See what other customers who have flown with KLM, Austrian Airlines and SWISS from Dublin to London have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,358 reviews

Overall

7.8

Entertainment

7.1

Food

7.2

Boarding

7.8

Comfort

7.7

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
KLM
7.8
Good
1,358 reviews
KLM
7.8
Good
1,358 reviews

Overall

7.8

Entertainment

7.1

Food

7.2

Boarding

7.8

Comfort

7.7

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
Austrian Airlines
7.6
Good
802 reviews
KLM
7.8
Good
1,358 reviews

Overall

7.8

Entertainment

7.1

Food

7.2

Boarding

7.8

Comfort

7.7

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
SWISS
7.5
Good
1,623 reviews
KLM
7.8
Good
1,358 reviews

Overall

7.8

Entertainment

7.1

Food

7.2

Boarding

7.8

Comfort

7.7

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
Scandinavian Airlines
7.3
Good
1,387 reviews
KLM
7.8
Good
1,358 reviews

Overall

7.8

Entertainment

7.1

Food

7.2

Boarding

7.8

Comfort

7.7

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
Vueling
7.1
Good
1,169 reviews
KLM
7.8
Good
1,358 reviews

Overall

7.8

Entertainment

7.1

Food

7.2

Boarding

7.8

Comfort

7.7

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.

Related info for your journey

Find useful and relevant information for your journey from Dublin to Heathrow. 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 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 59 outbound flights to London Heathrow per day from 2 airlines. Dublin is conveniently located just 5.7 mi from Dublin’s city center.

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

    British Airways, at $99, was found to be the cheapest airline from Dublin to London Heathrow Airport.Alternate airlines to your destination round-trip include Aer Lingus and Scandinavian Airlines. These flights start at 36% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Dublin to London Heathrow Airport one-way?

    One-way options have recently been found by users for as low as $39 on British Airways. Other airlines that offer cheap prices include Aer Lingus from $59 and Scandinavian Airlines from $79 one-way.

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

    Consider Air Canada (86%), British Airways (85%) or Aer Lingus (85%) when booking your flight. These represent the most reliable airlines when flying from Dublin to London Heathrow Airport.

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

    While on average a flight from Dublin to London Heathrow Airport is generally $1,283, our data shows the cheapest flight currently is $63. When looking at the most popular route, (Dublin - London Heathrow), you can expect to pay $127 for that flight.

  • 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, November is the cheapest month in which you can book a flight from Dublin to London Heathrow Airport (average of $661). Flying from Dublin to London Heathrow Airport in June is currently the most expensive (average of $1,108). 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
Hayes
Hounslow
Thornton Heath
Luton
Canterbury
Harrow
Dover
Stratford-upon-Avon
Gatwick
Orpington
Watford
Northampton
Croydon
Folkestone
Borehamwood
Broadway
Sutton
Aylesbury
Chelmsford
Brentwood

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Alternative routes for Dublin to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
Dublin to Gatwick flights
Cork to Heathrow flights
Shannon to Heathrow flights

Top 2 airlines flying from Dublin to Heathrow

Discover the top 2 airlines that operate flights from Dublin to Heathrow. 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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$89Average$134FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$116Average$178FlexibilityNo cancel feeOn-timeN/A

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