LHR - DUB

£41 Find Cheap Flights from London Heathrow Airport to Dublin

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Dublin departing on 27/6. 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 Dublin

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Dublin, 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 London to Dublin, as well as popular online travel agencies
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41 299 237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest return fare
£47
Typical prices: £196-£112
Aer Lingus, British Airways
Fri 19/6Tue 23/6
LHR - DUB • Direct
Cheapest one-way flight
£41
Typical prices: £72-£126
British Airways
Sat 27/6
LHR - DUB • Direct
Advice from real travellers
AI-powered summary based on content written by travel experts and KAYAK users. AI can make mistakes.
BA's economy fares include a cabin bag, avoiding fees.
Expect more walking than anticipated at Heathrow.
Expert advice
Expert advice
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Direct flights
You can fly direct with Aer Lingus and British Airways. Average duration is 1h 25m
Direct flights
Direct flights
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Direct flights
Direct flights
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Avoid delays
Most punctual • 86% on-time
Best time • Fewest delays
Insights
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When to book
in advance
Our data shows that travellers who book at least 5 weeks in advance save around 43% compared to booking last minute.
Insights
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Insights
When to travel
Cheapest • 20% price drop
Most popular
Good to know
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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 Dublin!
Flight Deals
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Expert advice
Flight Deals

Cheap Flights from Heathrow to Dublin (LHR-DUB)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow to Dublin 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 Heathrow to Dublin

Fri, 19 Jun - Tue, 23 Jun
Multiple Airlines Logo
15:10 - 16:35
LHR
-
DUB
1h 25mdirect
Multiple Airlines Logo
20:25 - 21:40
DUB
-
LHR
1h 15mdirect
£47Multiple Airlines
Wed, 8 Jul - Fri, 17 Jul
British Airways Logo
15:30 - 17:00
LHR
-
DUB
1h 30mdirect
British Airways Logo
20:10 - 21:25
DUB
-
LHR
1h 15mdirect
£77British Airways
Wed, 8 Jul - Fri, 17 Jul
British Airways Logo
18:05 - 19:30
LHR
-
DUB
1h 25mdirect
British Airways Logo
20:10 - 21:25
DUB
-
LHR
1h 15mdirect
£78British Airways
Sat, 13 Jun - Mon, 15 Jun
British Airways Logo
06:15 - 07:40
LHR
-
DUB
1h 25mdirect
British Airways Logo
15:15 - 16:45
DUB
-
LHR
1h 30mdirect
£78British Airways
Fri, 5 Jun - Mon, 8 Jun
British Airways Logo
06:20 - 07:45
LHR
-
DUB
1h 25mdirect
British Airways Logo
20:30 - 21:45
DUB
-
LHR
1h 15mdirect
£79British Airways
Fri, 5 Jun - Mon, 8 Jun
British Airways Logo
06:20 - 07:45
LHR
-
DUB
1h 25mdirect
British Airways Logo
20:30 - 21:45
DUB
-
LHR
1h 15mdirect
£80British Airways
Thu, 4 Jun - Wed, 26 Aug
British Airways Logo
10:35 - 12:05
LHR
-
DUB
1h 30mdirect
British Airways Logo
20:30 - 21:45
DUB
-
LHR
1h 15mdirect
£80British Airways
Sun, 7 Jun - Mon, 8 Jun
British Airways Logo
06:20 - 07:45
LHR
-
DUB
1h 25mdirect
British Airways Logo
20:30 - 21:45
DUB
-
LHR
1h 15mdirect
£81British Airways
Tue, 26 May - Thu, 28 May
British Airways Logo
17:10 - 18:40
LHR
-
DUB
1h 30mdirect
British Airways Logo
08:35 - 10:10
DUB
-
LHR
1h 35mdirect
£82British Airways
Mon, 27 Jul - Wed, 29 Jul
British Airways Logo
06:20 - 07:45
LHR
-
DUB
1h 25mdirect
British Airways Logo
20:30 - 21:45
DUB
-
LHR
1h 15mdirect
£83British Airways
Booking Insights

KAYAK’s insights & trends for Heathrow to Dublin flights

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

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

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

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

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

If you are looking for a flight deal from London Heathrow Airport to Dublin, look for departures on Fridays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from Dublin, Friday is the cheapest day to fly and Sunday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to Dublin, 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 London Heathrow Airport to Dublin is January, where tickets cost £105 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is £144 and £143 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Heathrow Airport to Dublin, 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 London Heathrow Airport to Dublin, you should book around 5 weeks before departure, which saves you about 43% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Expert advice

Expert advice for your flight from Heathrow to Dublin

 
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 London Heathrow Airport to Dublin

Low seasonJanuary
Cheapest flight£41
Best time to beat the crowds (19% less expensive on average)
Most popular time to fly (5% more expensive on average)
Flight from London Heathrow Airport to Dublin

When to book flights from Heathrow to Dublin

Are your dates flexible? Find out the best times to travel from Heathrow to Dublin 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.

Flights from Heathrow to Dublin: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew the route from Heathrow to Dublin 
DeborahFlew with Aer Lingus
LHR
-
DUB
Jun 2025
Heathrow seems to have a lot of plane traffic so make sure you have a good cushion of time if you have connecting flights. I had a 2 hour layover but ended up having to run to make sure I got to the other gate in time.
Verified travelerFlew with Aer Lingus
LHR
-
DUB
Jun 2025
If you’re doing a transfer speak to someone at the desk don’t use an automated kiosk
ThomasFlew with Aer Lingus
LHR
-
DUB
Oct 2024
You will likely have to walk a lot more than you might expect to make a connection.

FAQs for booking London Heathrow Airport to Dublin flights

  • Can I transfer from Dublin Airport (DUB) to Dublin city centre by public transport?

    Yes, you can take the Dublin Bus, which runs between Dublin Airport and the city centre. They depart from the Bus Park of Zone 15 approx. every 15-30min. The fastest option is the 747 Airlink Express costing around €7. Tickets can be purchased either on the bus or online and leave around every 10min. Journey times can take up to 1h.

  • What services are available at London Heathrow Airport for hidden disabilities?

    Remember to request specialist assistance from your airline at least 48h before departure. When you arrive at your terminal, you can pick up a sunflower lanyard from the assistance desk. This will ensure discretion, and staff will be more easily able to identify you if you need extra support at any time.

  • What rail transport options are available from central London to London Heathrow Airport?

    The fastest option would be the Heathrow Express train service, which travels non-stop direct between Paddington station and all terminals, taking around 15min. A standard ticket bought on the day will cost you around £25 (€30). Advance fares can work out a lot cheaper starting around £5.50 (€6.50). Another option would be to take the London Underground Piccadilly Line, which connects to all terminals. This is a cheaper option with fares ranging from £3-6 (€3.50-7) but takes longer, usually around 1h. There is also the TfL Rail link from west or central London stations, taking around 30min and costing around £11 (€13).

  • Where do I find the car hire desks at Dublin Airport (DUB)?

    Dublin Airport (DUB) offers car hire services from its Europcar desk in the main Arrivals Hall in each terminal. In Terminal 1, you'll turn right out of Customs and find the desk to your left. If you're in Terminal 2, follow the Car Hire signs above you as you exit Customs.

  • What are common single-stopover flights from London Heathrow to Dublin?

    Single-stopover flights are a popular choice when flying from London to Dublin. SWISS operates flights with a lengthy stopover at Zurich Airport (ZRH), while Scandinavian Airlines has flights with a stopover in Copenhagen. If you're travelling with KLM, your stopover flights go via Amsterdam Schiphol (AMS).

  • How do I reduce my Co2 emissions between London and Dublin?

    558 kg is the average Co2 emission per person on these flights, but several airlines offer reduced options. British Airways has a direct flight between Heathrow and Dublin with almost 95% reduced emissions. Aer Lingus operates direct flights with over 90% reduced emissions.

  • What is the Aer Lingus baggage policy for Economy seats for this route?

    For standard Economy tickets, Aer Lingus allows one carry-on bag of 5 kg and a checked-in bag of 20 kg. If you want to add more luggage, you can pay for extra luggage during the booking process. It's cheaper to pay online for more luggage than when you arrive at Heathrow Airport.

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

    In the last 3 days, the lowest price for a flight from London Heathrow Airport to Dublin was £41 for a one-way ticket and £47 for a return.

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

    The Airbus A350-1000 is the aircraft model that flies most regularly on the London Heathrow Airport to Dublin flight route.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from London to Dublin are Aer Lingus and Ryanair. With an average price for the route of £151 and an overall rating of 7.3, Aer Lingus is the most popular choice. Ryanair is also a great choice for the route, with an average price of £69 and an overall rating of 6.9.

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

    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 London Heathrow Airport to Dublin.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Dublin from London Heathrow Airport 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 London Heathrow Airport to Dublin?

    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 Dublin with an airline and back to London Heathrow Airport with another airline.

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

    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 Dublin from London Heathrow Airport 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 London Heathrow Airport to Dublin

  • Looking for a cheap flight from Dublin to London Heathrow Airport? 25% of our users found flights on this route for £90 or less one-way and £146 or less round-trip.
  • Download the Heathrow App to take advantage of the food and drink pre-ordering service with participating outlets at London Heathrow Airport (LHR). You can either consume in the terminal areas or take your purchases with you on-board your flight.
  • The Park & Ride service at Heathrow Airport is the most economical for long-term stays with prices starting around £8 (€9) per day. A free shuttle bus will transfer you to your required terminal, taking around 5-15min, depending on the distance between your terminal and the car park you are using.
  • London Heathrow is the UK’s busiest airport, operating four terminals. Make sure to check with your airline which terminal you need to depart from. Terminals are connected to each other by underpasses, buses 482 and 490, the Heathrow Express Rail Link, and the London Underground Piccadilly Line.
  • If you're booking an Aer Lingus flight, choose the Plus option when booking the ticket. It's usually a similar price to the Saver option but allows for a carry-on bag and checked-in luggage. The standard Saver option only allows for a carry-on bag and charges for checked-in luggage and seat selection.
  • London Heathrow Airport (LHR) is a great choice if you're travelling with children. There are changing stations and children's play areas located in all of the terminals, as well as entertainment zones and dedicated family lanes at the security checkpoints.

Prefer to fly direct from London Heathrow Airport to Dublin?

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

Direct departures

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

Direct returns

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

Reviews of the top 3 airlines flying from Heathrow to Dublin

 
See real verified KAYAK customer reviews for airlines flying from London to Dublin. 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 Heathrow to Dublin? 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 1536 reviews
6.6Food
8.1Crew
7.0Entertainment
7.2Comfort
7.4Boarding
Airline reviews

Satin first class and absolutely no snacks are offered. Surface was awful.

2.0 MediocreDiane, Apr 2026
CDG - DUB
Read more Aer Lingus reviews

Satin first class and absolutely no snacks are offered. Surface was awful.

This was the smoothest flight I've ever taken with any airline, including Aer Lingus. Typically, there are moments when I feel afraid, but from take off (miraculously seamless!) to cruise, to landing this was a perfect flight. Thank you!

Poor. Plane left EWR late hence missed connecting flight in Dublin. No pro active info from flight staff on connection, only when probed a couple of lies on where we would dock, and on lilelyhood catching connecting flight. Lies as they will have known our EWR-DUB would be parked furthest away from the transit spit - lying it would be next to the AMS flight.

The seat area was way too compact. The person in front reclined, and the TV screen was right in my face. There was a metal box secured to the floor in my foot area, further limiting space. Food was OK. The last service was provided too late in the flight, so the crew was rushing at the end. The ticket counter in the Naples airport was extremely slow. The staff on the flight was friendly.

delayed flight stayed whole night at washington Dallas airport at seats , uncomfortable . i am senior citizen , very tired , worst travel.

I heard that the pilots were actually leprechauns, but I was not able to confirm. Can you please provide documentation if this is true?

The check in process at the front desk felt slow and it was frustrating that we could not check in online. Everything about the actual flight was great, including very kind flight attendants and a nice larger bathroom. Only thing is that it was very cold in the plane!

I flew economy class. Seats were very good and the crew was excellent

I had a great experience. I would definitely use them again

The pre-check (passport control) for all US flights from Dublin airport is brilliant, meaning these flights come into the domestic airport in the US - it was so quick and easy getting to my hotel once we landed. The plane itself was great, staff were lovely and food was fine.

I didn't eat any food so can't comment on that. The prices on the plane are extortionate (as are all prices on planes). Everything else was seemless and a great experience

I need assistance and I could not fault it at all. I suffer anxiety and I was always put at ease by assistance staff, and the banter was good. On board the staff was so very nice and kind and showed empathy. Thank you to them. It was my first time travelling since I lost my husband and was so grateful to them.

I liked almost everything (e.g. ease of booking, price, punctuality, efficiency, friendliness, courtesy). A slam landing in Dublin airport took some of the gloss off it, though. Being able to paste here the text of the review of the same flight that I just wrote for Ryanair would make me feel better about Kayak too.

Great flight just took some time to board even when lining up early for the flight, even taking off took longer then expected.

Take off was great but landing is always with a bump.

Staff were very professional. Much better than the outgoing flight from Dublin. Seat cushions were practically non existent. Making for a very uncomfortable flight.

Flight was delayed by 1 hour 45 minutes. Aircraft was cramped, dirty and uncomfortable. Boarding staff more interested in charging you for oversize baggage than getting you on board. Overall not a pleasant experience.

A delay of almost 3 hours. It was evident that the staff wanted us to board urgently, to the point of rudeness, to avoid paying compensation

It's not the staff's fault. The cabin crew do their best but the setup in Stansted Airport by Ryanair is poor. The herding of people like cattle is unacceptable before boarding and is something that's in every airport but only in Stansted have I seen the queueing of passengers outside the plane on the tarmac and the crew only turning up with maybe 5 minutes to depart. This is a resource issue . Yes prices are good but seemingly comes with a price of poor treatment of customers. I'll pay more next time

On time arrival but the aircraft had seen better days and needed a deep clean.

Cramped seating but standard in all smaller aircrafts today no matter what airlines. Crew very helpful, friendly & attentive so makes up for that.

Wonderful business class flight in a lovely new plane with an excellent crew

OK, except for a cabin attendant's lack of attention.

efficient. on time. cabin crew were very professional and very nice to deal with. would definately fly BA again.

It was great overall. A few slight improvements could be made on the onboarding process at the Gates with announcements and clarity of communications (both at the gate and in flight). The movies in the entertainment options could be improved for bollywood, hollywood.

I alrady responded to this request, and expllaned at length that this was the worst flying experience in my 77 years. I will NEVER fly BA again.

Airbus A350 is poorly designed for wheelchair users and reduced mobility passengers. The angle of the pods makes it awkward to transfer. I was able to but I have ab stability. It could be a real challenge for people with more severe mobility impairments. You'd think Airbus would have come up with a solution for this or thought more about us disabled folks more when designing this aircraft.

The crew has always been great on BA. They are very friendly and accommodating. I like that they have vegetarian options already in the menu. And the free wine is a nice perk.) I noticed (both directions of my trip) minor upgrades/ replacements needed on the plane itself (touch screen didn't work with touch; bathroom light didn't go on). However, this is one of my favorite airlines.

It was not British Air, we were put onto Air Portugal for our London to Lisbon leg.

Everything was spectacular except the boarding. It was just a mob of people while all groups were called over the public address system.

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

Other airlines flying from Heathrow to Dublin

Flights from the other most popular airlines that fly from Heathrow to Dublin according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.