HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Heathrow

$38+ 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 6/18. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — LHR
Mar 30 — Apr 61
Sun 3/30
Sun 4/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dublin to Heathrow with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Dublin to London Heathrow are usually found in January or September, booked 78 days in advance, depart on a Friday or Saturday and return on a Monday

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 March 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$94
(Mytrip)

One-way from

$38
(Mytrip)

Popular in

November

Cheapest in

January

Average price

$158

Good round-trip deal

$169 or less

Good one-way deal

$68 or less
Provider with most accurate pricing for Dublin-London Heathrow flight deals.
Search Deals
Provider most trusted by Cheapflights users for Dublin-London Heathrow flights.
Search Deals
From Dublin to London Heathrow
Search Deals
One-way flight from Dublin to London Heathrow
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($11 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($2 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
Search Deals
Price to beat on a round-trip flight from Dublin to London Heathrow.
Search Deals
Price to beat on a one-way flight from Dublin to London Heathrow.
Search Deals

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 March 25, 2025.

This Booking.com deal was found by Cheapflights users on 3/23. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/58:30 pmDUB - LHR
Nonstop1h 20mBritish Airways
Tue 11/116:30 amLHR - DUB
Nonstop1h 25mBritish Airways
Deal found 3/23$88
This Booking.com deal was found by Cheapflights users on 3/22. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/612:00 pmDUB - LHR
Nonstop1h 25mAer Lingus
Tue 5/64:50 pmLHR - DUB
Nonstop1h 25mAer Lingus
Deal found 3/22$121
This Expedia deal was found by Cheapflights users on 3/23. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/66:30 amDUB - LHR
Nonstop1h 30mMultiple Airlines
Thu 4/106:20 amLHR - DUB
Nonstop1h 25mMultiple Airlines
Deal found 3/23$142
This Scandinavian Airlines deal was found by Cheapflights users on 3/24. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1612:20 pmDUB - LHR
1 stop6h 30mScandinavian Airlines
Mon 5/196:40 amLHR - DUB
1 stop5h 10mScandinavian Airlines
Deal found 3/24$185
This Vueling Global deal was found by Cheapflights users on 3/23. 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 Vueling Global is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/67:30 pmDUB - LHR
1 stop18h 45mVueling
Thu 5/153:05 pmLHR - DUB
1 stop16h 20mVueling
Deal found 3/23$196
This KLM deal was found by Cheapflights users on 3/23. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/811:10 amDUB - LHR
1 stop6h 25mKLM
Thu 5/158:40 amLHR - DUB
1 stop3h 55mKLM
Deal found 3/23$207
This Travelocity deal was found by Cheapflights users on 3/23. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/286:40 pmDUB - LHR
1 stop27h 05mSWISS
Mon 6/26:00 amLHR - DUB
1 stop6h 10mSWISS
Deal found 3/23$231

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 March 25, 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

Thu 5/15

8:15 pm-9:35 pm

Nonstop1h 20m

London Heathrow

Mon 5/19

6:20 am-7:45 am

Nonstop1h 25m

$94

DublinLondon

DUB - LHR

DUBLHR

Dublin

Wed 5/21

6:30 am-8:00 am

Nonstop1h 30m

London Heathrow

Fri 5/23

9:10 pm-10:30 pm

Nonstop1h 20m

$147

DublinLondon

DUB - LHR

DUBLHR

Dublin

Sun 6/1

6:30 am-8:00 am

Nonstop1h 30m

London Heathrow

Wed 6/4

6:15 am-7:40 am

Nonstop1h 25m

$155

DublinLondon

DUB - LHR

DUBLHR

Dublin

Mon 5/19

1:05 pm-2:15 pm

1 stop25h 10m

London Heathrow

Wed 5/21

3:05 pm-7:35 am

1 stop16h 30m

$176

DublinLondon

DUB - LHR

DUBLHR

Dublin

Fri 5/16

12:20 pm-6:50 pm

1 stop6h 30m

London Heathrow

Mon 5/19

6:40 am-11:50 am

1 stop5h 10m

$185

DublinLondon

DUB - LHR

DUBLHR

Dublin

Wed 5/7

11:10 am-5:35 pm

1 stop6h 25m

London Heathrow

Tue 5/27

6:30 am-10:25 am

1 stop3h 55m

$208

DublinLondon

DUB - LHR

DUBLHR

Dublin

Thu 5/8

1:00 pm-7:20 pm

1 stop6h 20m

London Heathrow

Thu 5/15

6:40 pm-12:10 pm

1 stop17h 30m

$256

DublinLondon

DUB - LHR

DUBLHR

Dublin

Thu 5/8

10:40 am-5:05 pm

1 stop6h 25m

London Heathrow

Mon 5/12

5:30 pm-10:15 pm

1 stop4h 45m

$271

DublinLondon

DUB - LHR

DUBLHR

Dublin

Wed 6/18

8:20 pm-9:40 pm

Nonstop1h 20m

$38

DublinLondon

DUB - LHR

DUBLHR

Dublin

Sat 5/3

6:00 pm-7:25 pm

Nonstop1h 25m

$61

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 20 results
1
2

Compare providers for flights from Dublin to Heathrow

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 Dublin to Heathrow in March.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*2 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
OneTravelPrice 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 Dublin-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Dublin-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Dublin-London Heathrow Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Dublin-London Heathrow Airport 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 Dublin-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 advance to save time.

Read more about DUBby James March
LHR

The Heathrow Express is the fastest way to central London, reaching Paddington Station quickly and conveniently.

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 March 21, 2025.

The best time to book flights from Dublin to London Heathrow Airport is 78 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 $1,115). 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 March 25, 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 77% 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 March 16, 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 March 25, 2025.

The most flights from DUB to LHR are scheduled on a Monday (67 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (47 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 March 25, 2025.
See what other customers who have flown with Aegean Airlines, KLM and LOT 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.
Aegean Airlines
8.1
Very good
726 reviews

Boarding

7.8

Comfort

7.8

Crew

8.6

Overall

8.1

Entertainment

6.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Aegean Airlines
8.1
Very good
726 reviews
Aegean Airlines
8.1
Very good
726 reviews

Boarding

7.8

Comfort

7.8

Crew

8.6

Overall

8.1

Entertainment

6.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
KLM
7.8
Good
1,318 reviews
Aegean Airlines
8.1
Very good
726 reviews

Boarding

7.8

Comfort

7.8

Crew

8.6

Overall

8.1

Entertainment

6.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
LOT
7.6
Good
1,061 reviews
Aegean Airlines
8.1
Very good
726 reviews

Boarding

7.8

Comfort

7.8

Crew

8.6

Overall

8.1

Entertainment

6.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Austrian Airlines
7.5
Good
769 reviews
Aegean Airlines
8.1
Very good
726 reviews

Boarding

7.8

Comfort

7.8

Crew

8.6

Overall

8.1

Entertainment

6.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
SWISS
7.5
Good
1,569 reviews
Aegean Airlines
8.1
Very good
726 reviews

Boarding

7.8

Comfort

7.8

Crew

8.6

Overall

8.1

Entertainment

6.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you

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 56 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 $94, was found to be the cheapest airline from Dublin to London Heathrow Airport.Alternate airlines to your destination round-trip include Aer Lingus and Vueling. These flights start at 37% 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 $38 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 Japan Airlines (84%), British Airways (83%) or Air Canada (83%) 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 $1,196, our data shows the cheapest flight currently is $46. When looking at the most popular route, (Dublin - London Heathrow), you can expect to pay $126 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 $1,115). 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
Hounslow
Hayes
Thornton Heath
Luton
Wembley
Harrow
Horley
Canterbury
Gatwick
Dover
Orpington
Watford
Milton Keynes
Northampton
Stratford-upon-Avon
Croydon
Borehamwood
Bromley
Folkestone
Ilford

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.
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 March 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$77Average$129FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$116Average$174FlexibilityNo cancel feeOn-timeN/A
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.