DUB - LHR

£36 Find Cheap Flights from Dublin to London Heathrow Airport – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dublin to Heathrow departing on 12/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Dublin to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Dublin to London, as well as popular online travel agencies
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Everything you should know

Cheapest return fare
£73
Typical prices: £114-£172
British Airways
Wed 19/8Wed 26/8
DUB - LHR • Direct
Cheapest one-way flight
£36
Typical prices: £64-£108
British Airways
Sat 12/9
DUB - LHR • Direct
Advice from real travellers
AI-powered summary based on content written by travel experts. AI can make mistakes.
British Airways Euro Traveller includes a cabin bag, unlike many budget fares.
Aer Lingus AerSpace adds front-row seating and a blocked middle seat for comfort.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from £73 (return)
Best reviews • 7.3 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
+1
Direct flights
You can fly direct with Aer Lingus and British Airways. Average duration is 1h 28m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 86% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 6 weeks in advance save around 37% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 20% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Heathrow!
Flight Deals
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Flight Deals

Cheap Flights from Dublin to Heathrow (DUB-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Dublin to Heathrow that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Dublin to Heathrow

Wed, 19 Aug - Wed, 26 Aug
British Airways Logo
08:35 - 10:10
DUB
-
LHR
1h 35mdirect
British Airways Logo
06:15 - 07:40
LHR
-
DUB
1h 25mdirect
£73British Airways
Sat, 28 Nov - Mon, 30 Nov
British Airways Logo
17:55 - 19:15
DUB
-
LHR
1h 20mdirect
British Airways Logo
06:30 - 07:55
LHR
-
DUB
1h 25mdirect
£73British Airways
Tue, 18 Aug - Wed, 19 Aug
British Airways Logo
08:35 - 10:10
DUB
-
LHR
1h 35mdirect
British Airways Logo
06:15 - 07:40
LHR
-
DUB
1h 25mdirect
£74British Airways
Thu, 13 Aug - Sun, 16 Aug
British Airways Logo
08:35 - 10:10
DUB
-
LHR
1h 35mdirect
British Airways Logo
06:20 - 07:45
LHR
-
DUB
1h 25mdirect
£76British Airways
Wed, 19 Aug - Mon, 24 Aug
British Airways Logo
08:35 - 10:10
DUB
-
LHR
1h 35mdirect
British Airways Logo
06:20 - 07:45
LHR
-
DUB
1h 25mdirect
£77British Airways
Wed, 19 Aug - Wed, 26 Aug
British Airways Logo
08:35 - 10:10
DUB
-
LHR
1h 35mdirect
British Airways Logo
18:05 - 19:30
LHR
-
DUB
1h 25mdirect
£77British Airways
Tue, 15 Sep - Wed, 16 Sep
British Airways Logo
20:25 - 21:40
DUB
-
LHR
1h 15mdirect
British Airways Logo
18:05 - 19:30
LHR
-
DUB
1h 25mdirect
£78British Airways
Fri, 2 Oct - Mon, 5 Oct
British Airways Logo
20:10 - 21:25
DUB
-
LHR
1h 15mdirect
British Airways Logo
06:20 - 07:45
LHR
-
DUB
1h 25mdirect
£79British Airways
Wed, 30 Sep - Wed, 7 Oct
British Airways Logo
08:35 - 10:10
DUB
-
LHR
1h 35mdirect
British Airways Logo
06:15 - 07:40
LHR
-
DUB
1h 25mdirect
£80British Airways
Wed, 26 Aug - Tue, 1 Sep
British Airways Logo
08:35 - 10:10
DUB
-
LHR
1h 35mdirect
British Airways Logo
06:20 - 07:45
LHR
-
DUB
1h 25mdirect
£81British Airways
Booking Insights

KAYAK’s insights & trends for Dublin to Heathrow flights

Get data-powered insights and trends into flights from Dublin to Heathrow to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from Dublin to London Heathrow Airport?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Dublin to London Heathrow Airport departing in August.

What’s the cheapest day of the week to fly from Dublin to London Heathrow Airport?

The average price of all round-trip flights from Dublin to London Heathrow Airport clicked on KAYAK for each day over the last 12 months.

For Dublin to London Heathrow Airport, Friday is the cheapest day to fly on average and Sunday is the most expensive. Flying from London Heathrow Airport back to Dublin, the best deals are generally found on Friday, with Monday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Dublin to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Dublin to London Heathrow Airport is January, where tickets cost £104 (return) on average. On the other hand, the most expensive months are April and December, where the average cost of round-trip tickets is £145 and £142 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Dublin to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Dublin to London Heathrow Airport, you should book around 6 weeks before departure, which saves you about 37% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

Expert advice

Expert advice for your flight from Dublin to Heathrow

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Duncan Madden

Duncan Madden

Expert on British Airways

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Marisa Garcia

Marisa Garcia

Expert on Aer Lingus

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialising in airline interiors and regulations. 10 years ago, she pivoted to journalism. She shares her insights in leading aviation, travel and business publications and on her site, FlightChic.

Ramsey Qubein

Ramsey Qubein

Expert on DUB

An avid traveller 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.

Kirstie Pickering

Kirstie Pickering

Expert on LHR

Aviation and business journalist Kirstie didn’t leave England until she was 18 years old, but has since travelled to over 20 countries including Japan, Canada, and Iceland. Her travel expertise lies in European city breaks, including how to find the best locally-owned hotels and restaurants and how to optimise the airport experience for your needs.

Good to know - Cheap tickets from Dublin to London Heathrow Airport

Low seasonJanuary
Cheapest flight£36
Best time to beat the crowds (20% less expensive on average)
Most popular time to fly (7% more expensive on average)
Flight from Dublin to London Heathrow Airport

When to book flights from Dublin to Heathrow

Are your dates flexible? Find out the best times to travel from Dublin to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Dublin to London Heathrow Airport flights

  • How can I get from Heathrow into London?

    You have a few options, for example The Heathrow Express; it's a non-stop train that will get you into central London in 15-20min. Another option is the London Underground, which takes just under 1h. You can also use National Express coaches to get to London; if you book online, you can get a ticket to London Victoria for approx. £10 (around €12) in as little as 40min. National Express also has routes from Heathrow to other towns or cities outside of London and around the rest of the country.

  • Which terminal will I use in Heathrow?

    In Heathrow, the most common terminal used for flights to and from Dublin is Terminal 2. Terminal 2 is a short walk from the main terminal, and is served by the Heathrow Express train, so it's easy to get from there into the city. It boasts multiple lounge areas, restaurants, and shops; you can even pre-order gourmet meals to enjoy on-board.

  • Can I get additional assistance in Heathrow?

    Heathrow Airport offers an official concierge service called Meet and Assist. Starting at around £100 (approx. €120) depending on how many are in your group, you can book a Meet and Assist agent to guide you through the airport, help with security, and assist with baggage collection.

  • What is the cheapest flight from Dublin to London Heathrow Airport?

    In the last 3 days, the lowest price for a flight from Dublin to London Heathrow Airport was £36 for a one-way ticket and £73 for a return.

  • Which airlines offer Wi-Fi service onboard planes from Dublin to London Heathrow Airport?

    Air France, Delta, and KLM offer inflight Wi-Fi service on the Dublin to London Heathrow Airport flight route.

  • Which aircraft models fly most regularly from Dublin to London Heathrow Airport?

    The Airbus A320neo is the aircraft model that flies most regularly on the Dublin to London Heathrow Airport flight route.

  • Which airline alliances offer flights from Dublin to London Heathrow Airport?

    oneworld is the only airline alliance operating flights between Dublin and London Heathrow Airport.

  • On which days can I fly direct from Dublin to London Heathrow Airport?

    There are direct flights from Dublin to London Heathrow Airport on a daily basis.

  • Which is the best airline for flights from Dublin to London, Aer Lingus or British Airways?

    The two airlines most popular with KAYAK users for flights from Dublin to London are Aer Lingus and British Airways. With an average price for the route of £154 and an overall rating of 7.3, Aer Lingus is the most popular choice. British Airways is also a great choice for the route, with an average price of £117 and an overall rating of 6.7.

  • How does KAYAK find such low prices on flights from Dublin to London Heathrow Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Dublin to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Dublin to London Heathrow Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Dublin is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Dublin to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London Heathrow Airport with an airline and back to Dublin with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Dublin to London Heathrow Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from Dublin up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Dublin to London Heathrow Airport

  • Looking for a cheap flight from London Heathrow Airport to Dublin? 25% of our users found flights on this route for £71 or less one-way and £390 or less round-trip.
  • There are a wide variety of hotels within walking distance of London Heathrow (LHR) Arrivals (for example, the Hilton Garden Inn or Aerotel), and many of them sell packages that include airport pickup services.
  • If you have an early flight, there are several hotels near Dublin Airport (DUB) (for example, the Carlton Hotel or Radisson Blu), which include long-stay parking in their packages, meaning you could stay over the night before your flight and save the early-morning travel.
  • Heathrow is London's busiest airport, so border control can be lengthy. Be prepared to wait from 45min to 2h at security.

Prefer to fly direct from Dublin to London Heathrow Airport?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Dublin to London Heathrow.
Find which airlines fly direct from Dublin Airport to London Heathrow Airport, which days they fly and book direct flights.

Direct departures

Dublin to London Heathrow

Monday

Aer Lingus,British Airways

Aer Lingus,British Airways

Tuesday

Aer Lingus,British Airways

Aer Lingus,British Airways

Wednesday

Aer Lingus,British Airways

Aer Lingus,British Airways

Thursday

Aer Lingus,British Airways

Aer Lingus,British Airways

Friday

Aer Lingus,British Airways

Aer Lingus,British Airways

Saturday

Aer Lingus,British Airways

Aer Lingus,British Airways

Sunday

Aer Lingus,British Airways

Aer Lingus,British Airways

See more direct flights

Direct returns

London Heathrow to Dublin

Monday

Aer Lingus,British Airways

Aer Lingus,British Airways

Tuesday

Aer Lingus,British Airways

Aer Lingus,British Airways

Wednesday

Aer Lingus,British Airways

Aer Lingus,British Airways

Thursday

Aer Lingus,British Airways

Aer Lingus,British Airways

Friday

Aer Lingus,British Airways

Aer Lingus,British Airways

Saturday

Aer Lingus,British Airways

Aer Lingus,British Airways

Sunday

Aer Lingus,British Airways

Aer Lingus,British Airways

See more direct flights

Reviews of the top airlines flying from Dublin to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from Dublin to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dublin to Heathrow? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.3
Aer LingusOverall score based on 1631 reviews
7.2Comfort
8.1Crew
7.4Boarding
6.7Food
7.0Entertainment
Airline reviews

Everything was great!! I had no problems!! I would fly Aer Lingus again! 🥰

10.0 ExcellentAnonymous, Jun 2026
DUB - PHL
Read more Aer Lingus reviews

Everything was great!! I had no problems!! I would fly Aer Lingus again! 🥰

Great. Has a problem with DOB. Fixed 4 us. Led to a 5 hour earlier flight to London!

My flights with Aer Lingus were very good and I will definitely fly with them. Again in future trips to Ireland and Scotland.

At check-in the unmanned machines said QR code was invalid so had to queue for over an hour to check in bags

Friendly crew who apologised and explained reason for delay. Good on board service. Rather cramped seating. Late departure.

Amenity kits were never handed out. There was zero friendliness and assistance by crew. Food was uneatable. One drink was offered and no wine, with dinner or before or after. Cocktails and beverages were not encouraged and when I asked for water, none was given. Poorest, most cramped business class flight I’ve ever been on.

Short flight so not much to rate. Surprised I had to pay for a soda.

Very good need to offer better choice of food for business

Always find Aer Lingus reliable and good value for money. Food on this flight was pretty basic and the headphone Jack at my seat only worked for one ear. Little disappointed in movie selection, limited on recent releases. Staff are okay - but I always buy a cheap ticket so not like I expect first class opulence anyway!!!

Air Lingus flights were delayed on each of the three flights we took. Not a very good , and organized airline.

My bag stayed in London - it didn't arrive in JFK and I was informed it would arrive at my address next day. I'm still waiting for my bag and it has not been delivered. I have an air tag, my bag arrived at JFK airport around 12pm and it has been moving between terminals since then. Now they said it may arrive 1 am or tomorrow. I'm jet lagged from my flight from India, without my suitcase and may need to miss a work day (Monday) because my suitcase was not delivered at the time it was promised (today, in the afternoon). The suitcase delivery service is not reliable and I'm not happy waiting around the entire Sunday to hear that it may or may not arrive today.

We loved our flight attendant (Emma, from Scotland), the meals were perfectly spaced out, and the in-flight entertainment was super generous and delightful.

Why don't they board from the back of the plane to the front. We have to move by all the people and their luggage to get to the seats.

The boarding call announcements versus the Staff announcements versus the digital signage board on the out-going and returning flights WERE NOT IN SYNC. I was sent through check and re-checks 3 times. WHY?

With three empty seats across the aisle from me I politely asked the crew if I could sit in one of those seats. They initially told me I couldn't do it for my safety. When I pressed them again they blamed the captain. So which was it? I didn't appreciate either nonsense explanation simply because they didn't want to honor my request.

Great room between the seats, food was excellent, very comfortable overall and could have stayed on the plane even longer

Flight was great (only a short hop from London to Dublin). Wi-Fi available on board(around 2 euros), power sockets, complimentary water and biscuit. Landin/ takeoff all went without a flaw.

The issue wasn’t necessarily with British Airlines but was a reaction to their delayed flight from Miami to London on Aug 18. Due to the delay out of Miami, we missed our BA flight with Aer Linguis on the 19th from London to Cork, Ireland. The attendant in London was helpful and rebooked us for a flight later that same day ($120). However, she failed to mention that as a result of the missed flight, our returning flight was also cancelled and the rebooking cost was $451. Disappointed at the lack of communication between airlines and between the agent and the customer.

Lost bag on an hour and a half flight with no connections - ridiculous!

You lost my luggage on the trip to Dublin and again on the way back, still waiting on luggage.

Everything you need to know for your flight from Dublin to Heathrow

Information on your arrival and departure airports