LHR - DUB

$58 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 6/18. 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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Everything you should know

Cheapest round-trip
$102
Typical prices: $137-$216
British Airways
Sat 3/7Sat 3/7
LHR - DUB • Non-stop
Cheapest one-way
$58
Typical prices: $99-$165
British Airways
Thu 6/18
LHR - DUB • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts and KAYAK users. AI can make mistakes.
BA's Euro Traveller fares include a carry-on bag.
Heathrow's plane traffic can cause delays.
Expert advice
Expert advice
+1
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Expert advice
Expert advice
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Nonstop flights
Every day
You can fly direct with Aer Lingus and British Airways. Average duration is 1h 24m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Aer Lingus
Most punctual • 86% on-time
Night flights
Best time • Fewest delays
Insights
Insights
Insights
Insights
When to book
5 weeks
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 43% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 19% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Dublin!
Flight Deals
Booking Insights
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 round-trip 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 round-trip flight deals from Heathrow to Dublin

Sat, Mar 7 - Sat, Mar 7
British Airways Logo
1:35 pm - 3:05 pm
LHR
-
DUB
1h 30mnonstop
British Airways Logo
5:55 pm - 7:15 pm
DUB
-
LHR
1h 20mnonstop
$102British Airways
Thu, Aug 6 - Fri, Aug 14
British Airways Logo
6:20 am - 7:45 am
LHR
-
DUB
1h 25mnonstop
British Airways Logo
8:10 pm - 9:25 pm
DUB
-
LHR
1h 15mnonstop
$104British Airways
Wed, May 6 - Sat, May 9
British Airways Logo
6:05 pm - 7:30 pm
LHR
-
DUB
1h 25mnonstop
British Airways Logo
8:15 pm - 9:30 pm
DUB
-
LHR
1h 15mnonstop
$106British Airways
Sat, Mar 7 - Sat, Mar 7
British Airways Logo
12:50 pm - 2:20 pm
LHR
-
DUB
1h 30mnonstop
British Airways Logo
5:55 pm - 7:15 pm
DUB
-
LHR
1h 20mnonstop
$107British Airways
Tue, Jun 9 - Thu, Jun 11
British Airways Logo
6:20 am - 7:45 am
LHR
-
DUB
1h 25mnonstop
British Airways Logo
8:20 pm - 9:35 pm
DUB
-
LHR
1h 15mnonstop
$109British Airways
Tue, Apr 14 - Tue, Apr 14
British Airways Logo
6:20 am - 7:45 am
LHR
-
DUB
1h 25mnonstop
British Airways Logo
10:30 am - 12:00 pm
DUB
-
LHR
1h 30mnonstop
$110British Airways
Tue, Apr 7 - Tue, Apr 14
British Airways Logo
6:20 am - 7:45 am
LHR
-
DUB
1h 25mnonstop
British Airways Logo
10:30 am - 12:00 pm
DUB
-
LHR
1h 30mnonstop
$111British Airways
Mon, Apr 6 - Mon, Apr 13
British Airways Logo
6:20 am - 7:45 am
LHR
-
DUB
1h 25mnonstop
British Airways Logo
8:30 pm - 9:45 pm
DUB
-
LHR
1h 15mnonstop
$112British Airways
Thu, Apr 9 - Mon, Apr 13
British Airways Logo
6:20 am - 7:45 am
LHR
-
DUB
1h 25mnonstop
British Airways Logo
8:30 pm - 9:45 pm
DUB
-
LHR
1h 15mnonstop
$113British Airways
Sat, Mar 7 - Sat, Mar 7
British Airways Logo
1:35 pm - 3:05 pm
LHR
-
DUB
1h 30mnonstop
British Airways Logo
5:55 pm - 7:15 pm
DUB
-
LHR
1h 20mnonstop
$114British 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 round-trip flight from London Heathrow Airport to Dublin?

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

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.

Your flight ticket price will generally be cheaper if you fly to Dublin on a Friday and more expensive on a Saturday. On your return trip to London Heathrow Airport, you should consider flying back on a Tuesday, and avoid Wednesdays for better deals.

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 $142 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $203 and $193 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 22 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 and LHR

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, specialized in airline interiors and regulations. Ten 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 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.

Good to know

Low seasonJanuary
Cheapest flight$58
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 6% increase in price.
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 round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips 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 travelers 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).

  • 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 $58 for a one-way ticket and $102 for a round-trip.

  • Do I need a passport to fly between London Heathrow Airport and Dublin?

    Yes, you’ll need a passport to travel to Dublin from London Heathrow Airport.

  • 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 nonstop 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 British Airways?

    The two airlines most popular with KAYAK users for flights from London to Dublin are Aer Lingus and British Airways. With an average price for the route of $216 and an overall rating of 7.2, Aer Lingus is the most popular choice. British Airways is also a great choice for the route, with an average price of $153 and an overall rating of 6.7.

  • 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 travelers 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 round-trip ticket. You could then fly to Dublin with an airline and back to London Heathrow Airport with another airline. Booking your flights between London Heathrow Airport and DUB can sometimes prove cheaper using this method.

  • 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? 25% of our users found flights on this route for $122 or less one-way and $177 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.

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 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.
7.2
Aer LingusOverall score based on 1458 reviews
8.1Crew
7.1Comfort
7.4Boarding
7.0Entertainment
6.6Food
Airline reviews

Punctual, smooth flight. Crew excellent and cabin very clean. Paid for WiFi but once you close out you cannot get back in even if you paid for entire flight.

8.0 ExcellentGerhard, Feb 2026
LAX - DUB
Read more Aer Lingus reviews

Punctual, smooth flight. Crew excellent and cabin very clean. Paid for WiFi but once you close out you cannot get back in even if you paid for entire flight.

Flight crew was superb. Meal was one of the meals at altitude I’ve had

One of the best flight experience I have had in along time. Would fly with them again.

Like getting a bus. No great luxury but will get you there

Got us to destination alive, albeit a bit late. Luggage was left behind. No live tracking app available (available on some other airlines). Supposedly going to be delivered in next couple of days.

The trip was mostly nice, till the last moment when they had some issue with opening the flight door. The flight arrived late by 10 minutes, which was ok-ish, but then we got stuck on the plane for 35 minutes at the bridge and that costed our connection flight to LAX which left with 12+ passengers still on our flight. It added 2 days to our trip home, and we had to make lots of rearrangements to deal with the ripple effects. Don't book a 1+ stop trip with a layover time less than 2 hours.

My seat was broken. No sound available and the armrest between my wife and I was broken so it could only fold halfway up. Seats were a big close together so they felt a bit claustrophobic. Boarding was a little frustrating in Dublin as there is not sufficient room to actually queue up. Boarding was also frustrating for people behind me who were unable to use the overhead due to people abusing the privilege and putting more than one item each up there. Staff was friendly and helpful to those people.

The staff was amazing, so friendly and responsive. Check in was tedious as the online service was not available and the desk understaffed. It took a full hour in line to check in. The seats, in economy, where quite spacious until the people in front of us reclined their seats which then meant the seat was touching our knees. The inconsiderate people who were seated in a bulkhead kept their seats reclined for 80% of the flight and then got annoyed when we bumped their seats while shifting positions. It was highly unpleasant..

The connection time between the regional flight (from Newcastle) to an international flight (to The States) was too short. To require as second security scan and customs clearance within an hour and 20 mins is not enough time to make the actual connection. We had a final boarding call the minute we walked out of US customs and had to sprint (with two small children) through 20 gates to make it in time before the door closed. The concept is great in theory to clear customs before leaving Europe, but the timing needs to be adjusted. We travel abroad frequently and won’t be using this route again. Thanks.

Canceled my flight couple hours before takeoff. They could not find a decent re-routing and refused to pay for when i subjected alternative with Lufthansa.

The flight was delayed due to snow in Frankfurt. There wasn't much information from BA or the airport, but Kayak was great and kept me informed of the delay and gate changes.

Late takeoff, but on time landing. Lost bags, 3 days to find them, still in transit to my location. Power outlets broken, Wi-Fi not working, so much for working on the long flight.

Good. For a long flight. The comfort of the seat could be better. Also, the food was « normal » plane food. Not indian plane food unfortunately! Everything else was smooth and great.

The seats were comfortable. So many empty seats allowed for stretching out and sleeping. The onboard entertainment was pretty good. The cabin crew were so kind and kept the passengers well- hydrated, and well fed.

We had American Airlines on our return and it was confusing if we were going with Aa or BA I had 2 different flight numbers and didn’t get our gate until it was boarding. So we were a bit nervous as the which it was

No WiFi. No food. 250 ml of water only drink option. No entertainment options. Extremely bare bones flight

Really appreciated the care, attention and friendliness of cabin crew. Very comfortable, prompt and efficient flight.

Economy seats were good and spacious. Much better than virgin by a mile.

I was unable to board this flight because of visa changes that I was not alerted about and I’ve been unable to contact Kayak to obtain a refund / credit anything.

My touch screen at my seat wasn't working, the films BA advertised on the website for this flight were not available, and the plane was a little dated, food was good and the staff were good, just let down by the aircraft facilities.

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

Information on your arrival and departure airports