DUB - LHR

€40 Find Cheap Flights from Dublin to London Heathrow Airport

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 29/10. 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

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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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

Sat, 11 Oct - Sat, 18 Oct
Aer Lingus Logo
19:00 - 20:20DUB-LHR
1h 20mdirect
Aer Lingus Logo
19:40 - 20:50LHR-DUB
1h 10mdirect
€86Aer Lingus
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Sat, 11 Oct - Sat, 18 Oct
British Airways Logo
20:10 - 21:30DUB-LHR
1h 20mdirect
British Airways Logo
14:55 - 16:20LHR-DUB
1h 25mdirect
€87British Airways
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Sat, 11 Oct - Sat, 18 Oct
British Airways Logo
20:10 - 21:30DUB-LHR
1h 20mdirect
British Airways Logo
14:55 - 16:20LHR-DUB
1h 25mdirect
€88British Airways
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Sat, 11 Oct - Thu, 23 Oct
British Airways Logo
20:10 - 21:30DUB-LHR
1h 20mdirect
British Airways Logo
06:20 - 07:45LHR-DUB
1h 25mdirect
€89British Airways
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Fri, 21 Nov - Sun, 23 Nov
British Airways Logo
16:00 - 17:25DUB-LHR
1h 25mdirect
British Airways Logo
16:10 - 17:40LHR-DUB
1h 30mdirect
€89British Airways
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Tue, 18 Nov - Tue, 18 Nov
British Airways Logo
13:25 - 14:50DUB-LHR
1h 25mdirect
British Airways Logo
18:15 - 19:40LHR-DUB
1h 25mdirect
€90British Airways
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Sat, 11 Oct - Tue, 21 Oct
Aer Lingus Logo
19:00 - 20:20DUB-LHR
1h 20mdirect
Aer Lingus Logo
15:50 - 17:15LHR-DUB
1h 25mdirect
€91Aer Lingus
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Sat, 28 Feb - Wed, 4 Mar
British Airways Logo
13:10 - 14:35DUB-LHR
1h 25mdirect
British Airways Logo
10:40 - 12:10LHR-DUB
1h 30mdirect
€92British Airways
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Fri, 10 Oct - Tue, 14 Oct
Aer Lingus Logo
06:30 - 08:00DUB-LHR
1h 30mdirect
Aer Lingus Logo
15:10 - 16:35LHR-DUB
1h 25mdirect
€108Aer Lingus
Find Deal
Sat, 27 Sep - Sat, 4 Oct
 Logo
19:00 - 20:20DUB-LHR
1h 20mdirect
 Logo
14:55 - 16:20LHR-DUB
1h 25mdirect
€127
Find Deal

Everything you should know

Top airlines
Aer Lingus
Cheapest • from €86 (return)
Aer Lingus
Best reviews • 7.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
6 weeks
in advance
Our data shows that travellers who book at least 6 weeks in advance save around 43% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 17% price drop
November
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest return fare
€86
Typical prices: €106-162
Aer Lingus
Sat 11/10Sat 18/10
DUB - LHR • Direct
Cheapest one-way flight
€40
Typical prices: €58-92
Aer Lingus
Wed 29/10
DUB - LHR • 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 Heathrow!
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?

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 Monday is the most expensive. Flying from London Heathrow Airport back to Dublin, the best deals are generally found on Monday, with Thursday 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 €116 (return) on average. On the other hand, the most expensive months are August and June, where the average cost of round-trip tickets is €161 and €151 respectively.

Can I save money by flying with a stopover from Dublin to London Heathrow Airport?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of €142, prices are generally cheapest when you fly direct.

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 43% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight€40
Best time to beat the crowds (4% less expensive on average)
Most popular time to fly (9% 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 €47 for a one-way ticket and €101 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, Star Alliance, and SkyTeam are the airline alliances operating flights between Dublin and London Heathrow Airport, with oneworld being the most commonly used for this route.

  • 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 €170 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 €125 and an overall rating of 6.6.

  • 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? 25% of our users found flights on this route for €105 or less one-way and €235 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?

 
Nonstop data is based off flight results for the next 60 days. Find direct flights from all airlines flying nonstop 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.
7.2
Aer LingusOverall score based on 1270 reviews
6.9Entertainment
7.1Comfort
7.3Boarding
8.0Crew
6.5Food
Airline reviews

All of my Aer Lingus flights were delayed. The seat I purchased with extra leg room was exactly the same as my previous seat that was free. I would appreciate my money back.

2.0 MediocreAnonymous, Sept 2025DUB - EWR
Read more Aer Lingus reviews

All of my Aer Lingus flights were delayed. The seat I purchased with extra leg room was exactly the same as my previous seat that was free. I would appreciate my money back.

Horrible. I had to wait in Dublin for 4 hours for the next connecting flight which took my to London and than i had to wait 3 hours for the flight to Dusseldorf

It was fine. Not worth the premium price. Overhead bins were so high I could barely reach and no crew offered to help me. Average food. Lounge in Dublin - 51st and green- absolutely appalling. Plagued with hordes of flies, dirty, meager food and beverages. Shameful.

Dear Aer Lingus Customer Care, I am writing to formally raise a complaint regarding my recent experience on Aer Lingus flight EI53 from Dublin to Seattle on 22/08/2025. Both my wife and I were seated in 15D, 15E directly under a faulty air conditioning unit. Even though the unit was switched off, cold air continued seeping through the sides and blew directly onto us for the entire duration of the flight (over 9 hours). We reported the issue to the cabin crew, but the only attempted solution was placing a piece of food-packaging sticker over the vent. Unsurprisingly, this had no effect. When we pressed further, the crew told us: “It is hard to fix it because we don’t have an engineer on board.” As a result, my wife and I remained exposed to constant cold airflow for the whole flight, and both of us became unwell afterwards, experiencing chills, sore throat and fever at the end of the flight. This has caused significant distress, disrupted our work plans. This experience highlights both a serious maintenance issue and a lack of adequate care for passengers. We therefore request: A full investigation into the defective AC system on this aircraft. An explanation of why no effective remedy (such as reseating us) was provided. Compensation for the illness and disruption caused to both myself and my wife. We ask for a full written response within 28 days. Should this matter not be satisfactorily resolved, we are prepared to escalate the complaint to the Irish Aviation Authority and Commission for Aviation Regulation and other relevant authorities. Thank you for your urgent attention to this matter. Sincerely, Temuujin Tuvshingal Myagmarsuren Ganbold

We had a long delay leaving IOM. No food or drunk service as it is a short flight. Shuttled by bus from terminal to plane with packed in conditions on bus.

The space between seats was reduced even further. Could not even open the tray table fully and got compressed the moment the front guy reclined. For a long haul flight it was extremely uncomfortable.

Not satisfying due to loss Luguage for 4days. Damage Luguage that had no way to fill up a report for and me as a client to spend more money and time to replace it. Thank you for soliciting my opinion, but it was unfortunately a very disappointing experience. Stephanie Zvi

Delightful flight, ahead of time with a super crew, thanks

I wish Aer Lingus offered free wifi and had power outlets at the seats. Overall, the flight was good. Seat back entertainment had some interesting options. Food and snack options were mediocre at best. I enjoyed the canned red wine.

I had an awful experience at the ticketing agent stand. I had purchased three tickets, one of which I had the maiden name of a passenger on the ticket. They refused to help, assist, and actually delayed our process and had us miss an opportunity to purchase a ticket on the same flight. I was sent through multiple phone calls, none of which helped, and the person at the counter was the person who told me to both call Aer Lingus for help and was the person who said they could not fulfill my request that they were privy to from the beginning. My partner is still stuck in Scotland, racking up thousands of dollars in additional fees and tickets. I am very upset and two of my tickets went unused. I will never be using Aer Lingus ever again and I will continue to complain about them.

The flight was good. It arrived at Heathrow on time but then there was no transport to take us to the terminal. We sat on the plane for an hour waiting for a bus. I will avoid Heathrow if possible in future. The crew were very apologetic.

we had to walk up stairs to get into the plane--no jetways. Perhaps that's a problem not with the airline but with facilities at Heathrow, Glasgow, and Edinburgh. But it was inconvenient.

The seating has become ridiculous… like a contest to see how narrow and short they can be made- forcing anyone over 5’1 to pay more to not be twisting oneself into a pretzel. Really insane- would have thought BA was better than this. Frankly- it cancels out a lot of the positive aspects.

flight was delayed from BWI to London - missed my connecting flight & then connecting flight (also British Air) was delayed - food is awful, TV & movie selection is great

Super tight economy class. My knees were hitting the back of seat in front of me (I'm only 5'6"). My small backpack (sized according to their required dimensions) would not fit under the seat in front of me because there is a box (is that the life jacket?) in the way. Over all, extremely uncomfortable. I forgive the tasteless food, but the tight seating was torture

Excellent service by the flight crew, and the food was relatively very good compared to other airlines.

Flight was excellent, staff was great. My first time in first class and it was very relaxing and comfortable.

They can separate the young children from people who want to have a rest. It had lots of crying and loud noises from the children.

I had an awful experience with British Airways as they broke the handle of my checked in suitcase and when I went to complain they told me that this was not their responsibility. This has to be one horrible airline that does not take responsibility for the damage that they have created

Didn’t fly with them as someone had cancelled my flight

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

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