LHR - DUB

$97 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 10/12. 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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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

Sat, 13 Dec - Sun, 14 Dec
British Airways Logo
15:30 - 17:00LHR-DUB
1h 30mdirect
British Airways Logo
10:45 - 12:20DUB-LHR
1h 35mdirect
$142British Airways
Find Deal
Thu, 11 Dec - Sun, 14 Dec
British Airways Logo
15:30 - 17:00LHR-DUB
1h 30mdirect
British Airways Logo
10:45 - 12:20DUB-LHR
1h 35mdirect
$145British Airways
Find Deal
Wed, 14 Jan - Tue, 20 Jan
British Airways Logo
10:40 - 12:10LHR-DUB
1h 30mdirect
British Airways Logo
20:40 - 22:00DUB-LHR
1h 20mdirect
$148British Airways
Find Deal
Fri, 27 Feb - Sun, 1 Mar
British Airways Logo
06:30 - 07:55LHR-DUB
1h 25mdirect
British Airways Logo
10:45 - 12:20DUB-LHR
1h 35mdirect
$149British Airways
Find Deal
Sat, 6 Dec - Mon, 8 Dec
British Airways Logo
15:30 - 17:00LHR-DUB
1h 30mdirect
British Airways Logo
08:50 - 10:25DUB-LHR
1h 35mdirect
$151British Airways
Find Deal
Sun, 8 Mar - Mon, 9 Mar
British Airways Logo
12:45 - 14:15LHR-DUB
1h 30mdirect
British Airways Logo
10:45 - 12:20DUB-LHR
1h 35mdirect
$152British Airways
Find Deal
Thu, 11 Dec - Fri, 12 Dec
British Airways Logo
15:30 - 17:00LHR-DUB
1h 30mdirect
British Airways Logo
18:15 - 19:35DUB-LHR
1h 20mdirect
$154British Airways
Find Deal
Thu, 11 Dec - Fri, 12 Dec
British Airways Logo
15:30 - 17:00LHR-DUB
1h 30mdirect
British Airways Logo
18:15 - 19:35DUB-LHR
1h 20mdirect
$155British Airways
Find Deal
Wed, 3 Dec - Wed, 3 Dec
British Airways Logo
06:30 - 07:55LHR-DUB
1h 25mdirect
British Airways Logo
10:20 - 11:55DUB-LHR
1h 35mdirect
$160British Airways
Find Deal
Fri, 12 Dec - Sun, 14 Dec
British Airways Logo
06:30 - 07:55LHR-DUB
1h 25mdirect
British Airways Logo
10:45 - 12:20DUB-LHR
1h 35mdirect
$161British Airways
Find Deal

Everything you should know

Our travellers' advice
AI-generated summary based on content written by KAYAK users
Expect delays at Heathrow due to heavy plane traffic.
Prepare for long walks between gates at Heathrow.
User tips
User tips
User tips
User tips
When to book
5 weeks
in advance
Our data shows that travellers 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
October
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest return fare
$142
Typical prices: $222-$396
British Airways
Sat 13/12Sun 14/12
LHR - DUB • Direct
Cheapest one-way flight
$97
Typical prices: $151-$289
British Airways
Wed 10/12
LHR - DUB • Direct
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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!
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 December.

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.

When flying from London Heathrow Airport to Dublin, you should consider leaving on a Wednesday and avoid Fridays if you are looking for the best rates. For your return to London Heathrow Airport, you’ll find the best rates on Tuesdays and the most expensive ones on Fridays.

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 $210 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $308 and $288 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 23 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$97
Best time to beat the crowds (19% less expensive on average)
Most popular time to fly and prices are also 2% lower 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 LingusLHR-DUBJune 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 LingusLHR-DUBJune 2025
If you’re doing a transfer speak to someone at the desk don’t use an automated kiosk
ThomasFlew with Aer LingusLHR-DUBOct 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 $97 for a one-way ticket and $142 for a return.

  • Which airports will I be using when flying from London Heathrow Airport to Dublin?

    When flying out of London Heathrow Airport you will be using London Heathrow. You will be landing at Dublin, also known as Dublin.

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

    Only KLM offers inflight Wi-Fi service on the London Heathrow Airport to Dublin flight route.

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

    The Boeing 787-9 Dreamliner 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 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 $280 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 $176 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 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? 25% of our users found flights on this route for $145 or less one-way and $189 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 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 1361 reviews
6.6Food
6.9Entertainment
7.1Comfort
8.0Crew
7.4Boarding
Airline reviews

Staff was generally friendly and helpful. Attendants collecting trash were somewhat inattentive though.

8.0 ExcellentDaniel, Oct 2025BER - DUB
Read more Aer Lingus reviews

Staff was generally friendly and helpful. Attendants collecting trash were somewhat inattentive though.

This flight left about 45 minutes late, and arrived about 45 minutes late, which was enough to make us miss our next flight and trap us in Dublin for 24 hours!!

I think the extra charges for seating with no added advantage and the added charges for baggage are excessive compared to other airlines.

I had zero issues with the flight. I did have issues with the staff at the airport. We missed out flight due to a delay with another airline. Talking to the staff and trying to get a new flight arranged was challenging. One guy was able to try to help us and got us on a new flight, but other staff was dismissive and clearly let us know it wasn’t their problem. All I kept thinking was… this is why air lingus has such a poor customer service reputation. I will be avoiding this airline in the future.

Food was just okay. Was surprised initially when was charged for a cup of tea when they first came through cabin for beverages. I’ve had far better long distance flights ( take some tips from Swiss airlines)

The boarding process was not good. From check-in, there was only one desk for check-in, which made for a very long line. I asked to print out my boarding pass for the next leg of my trip, also via Aer Lingus, and they said they couldn't. I was unable to do this on the app or online, either. Many fellow passengers I spoke to had the same issue. Because the plane was delayed taking off by 90 minutes, everyone had to quickly go to a desk for their next boarding pass which was chaos. Overall it wasn't a smooth or happy experience.

UNDERPRISER IS A CRIMINAL ORGANIZATION. I WILL NEVER LET THEM MANAGE ANOTHER TRIP. THEY ESSENTIALLY WERE TRYING TO EXTORT ME FOR "Permission" FROM THEM not TO USE MY ROME TO DUBLIN FLIGHT. I did not use this flight, and despite many communications with both Aer Lingus and Underpricers, to the end, they insisted I could not do this, while Aer Lingus kept telling me there was no problem. And in fact, I had zero problems catching that second leg of the trip home from Dublin to LAX.. As if harrassment, underpricers sent me a rude and insensitve email insisting Aer Lingus would not honor the flight home to LAX from DUB. ON THE MORNING OF THE TRAVEL!!! KAYAK SHOULD NOT USE UNDERPRICER "services" They are dishonest and sadistic.

We left 2 1/2 hours late. It wasn't the airlines fault but they did nothing to help the situation. Even water had a price tag. The next flight was better.

They specifically asked about my flight from bordeaux to Dublin, which was fine. A little lacking but for a 1 and a half hour flight - it was more than enough. I transferred at Dublin and went to Newark. And wow that flight was incredible.

I liked that I went thru customs in Dublin instead of having to do that in LA.

We always use BA due to the direct flight options, we have always had a pleasant flight with BA.

There might be more food options for people who can't eat so much starch/sugar/bread/rice. Meat, cheese, walnuts/pecans for snack, maybe jerky or other kinds of meat-based snacks would be better than bread and rice and sweets. I had an extra chardonnay, which was fine. The entertainment was great.

Unfortunately, my flight was cancelled because of some sort of emergency over the Atlantic and had to return to London. While I think British Airways made every effort to mitigate the situation, I must say it was still pretty unpleasant. I do appreciate the fact, however, that British Airways put my safety first…and I think the effort to correct a bad situation was very sincere. But I think the process might be handled better in future.

Horrible leg room - coach seating with empty seat in middle on a 3 across seating. You buy business class for comfort which includes leg room. Absolutely no entertainment options either. Awful experience

Crew service was poor and very little difference between premium economy and economy. Disappointed.

My bags never made it on the flight and I now have to wait for them to arrive hopefully tomorrow. You can’t even track your bags in the app to see where they are since they didn’t arrive. You have to file a claim and then wait for them to inform you when you will receive your bag. We were already delayed for an hour due to baggage so I don’t understand how my bag didn’t make the flight.

One of the worst experience given the middle seat even asked for the change no one honored,boarded at the end and overall one of the worst experience

No WiFi in either flight. No leg room, the seat in front of me left dents on my knees and the tray was so low my knees propped it up if I tried to use it.

It was good although our flight to the UK was cancelled and rescheduled for two days later. This was after we were already seated on the plane. We missed the first leg of our trip. BA did put us up at a hotel and paid for our meals but we lost our hotel costs in Glasgow.

The crew was very nice and pleasant. We were very reluctant to book our flight with British Airlines because we had bad experience with their flight attendants on the previous trips, they were rude and not helpful.

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

Information on your arrival and departure airports

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